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Troubleshooting 

This chapter describes how to troubleshoot H3C WA series WLAN access points problems. 
If you cannot solve a system problem, contact the H3C technical support staff. 

 

Email address: [email protected] 

 

Website: http://www.h3c.com/ 

Symptom 1 

When the AP is powered on, no information is output on the console port although the 
serial port of the PC is connected to the RJ-45 port of the AP. 

Analysis 

 

If the serial port of the PC is connected to the network port of the AP, no 
information is output. 

 

If the serial port settings are not correct, the serial port works abnormally. 

Solution 

 

Check whether the serial port of the PC is connected to the network port of the AP. 
If yes, connect the serial port to the port with silkscreen CONSOLE on the AP panel. 

 

Check the serial port settings of the PC. The correct port settings should be: 9600 
bps baud rate, no parity check, and 8 data bits. 

Symptom 2 

When the AP is powered on, it cannot be connected to the network. 

Analysis 

 

If the network cable is connected to the console port of the AP, the AP cannot be 
connected to the network. 

 

If the length of the network cable exceeds the specifications (for example, 100 m, 
or 328.08 ft.), the AP may not be able to connect to the network. 

Содержание WA Series

Страница 1: ...tting Started Guide Abstract This document describes installation preparation login CLI basic configurations software maintenance and troubleshooting for the WA series WLAN access points Hangzhou H3C Technologies Co Ltd http www h3c com ...

Страница 2: ...press or implied Hangzhou H3C Technologies Co Ltd and its licensors shall not be liable for technical or editorial errors or omissions contained herein Acknowledgments H3C Aolynk H3Care TOP G IRF NetPilot Neocean NeoVTL SecPro SecPoint SecEngine SecPath Comware Secware Storware NQA VVG V2G VnG PSPT XGbus N Bus TiGem InnoVision and HUASAN are trademarks of Hangzhou H3C Technologies Co Ltd All other...

Страница 3: ...4 Powering on the AP and connecting it to a network 14 Logging in to an AP 15 5 Configuring basic functions 16 Configuring basic functions for an AP operating in fit mode 16 Configuring basic functions for an AP operating in fat mode 16 Specifying an IP address for an AP 20 Configuring WLAN service 20 Saving the current configuration 22 6 Software maintenance 24 Introduction 24 Files managed by th...

Страница 4: ...43 Backing up an application 44 Upgrading an application using FTP at the CLI 45 Setting up an upgrade environment 45 Displaying the system files and available space of the storage medium 46 Logging in to the FTP server from the AP 46 Upgrading an application 47 Backing up an application 47 Upgrading an application by using FTP with the default configuration 48 Upgrading an application through the...

Страница 5: ...sword loss 60 Super password loss 61 7 Troubleshooting 62 Symptom 1 62 Analysis 62 Solution 62 Symptom 2 62 Analysis 62 Solution 63 Symptom 3 63 Analysis 63 Solution 63 Symptom 4 63 Analysis 63 Solution 63 Symptom 5 64 Analysis 64 Solution 64 Symptom 6 64 Analysis 64 Solution 64 8 Support and other resources 65 Related documentation 65 About the H3C WA documentation set 66 ...

Страница 6: ...Contact us 67 Technical support 67 Documentation feedback 67 Document conventions and symbols 68 Conventions 68 Symbols 69 ...

Страница 7: ... models and working mode The WA2110 AG supports 802 11a b g and serves as fit APs to cooperate with wireless controllers or unified switches The WA2200 series supports 802 11a b g and can switch between the fit and fat modes to accommodate to different network sizes The WA2600 series supports 802 11a b g n and can operate in both fat and fit modes It provides an access rate of six times the tradit...

Страница 8: ...Series Model Operating in fit or fat mode access points enhanced WA2620E AGN Both WA2610E GNP Both ...

Страница 9: ...nt and maintenance of APs by administrators Determine whether installation accessories for example or power adapter are needed according to the installation position and power supply mode of your AP Order them in advance because some installation accessories are not shipped with your AP and you need to purchase them yourself Preparing installation tools When installing the AP you may need the tool...

Страница 10: ... high power radar radio station and transformer unstable voltage heavy vibration or loud noise The installation site should be dry without any leakage dripping or dew The AP should be at least 500 m 0 31 mi away from the seaside and should not face the direction of sea wind In engineering design the site should be selected according to the network planning and technical requirements of communicati...

Страница 11: ...ll thickness of at least 3 5 mm 0 14 in Weld the yellow and green ground cable of the AP onto the earthing conductor and use anti erosion treatment on the welding joint The grounding cable should be as short as possible and must not be coiled Ensure that the grounding points of all the lightning arresters of the AP and the peer device of the AP are well grounded 3 Grounding lead in A grounding lea...

Страница 12: ...ed for outdoor installations The power lightning arrester and the feeder lightning arrester should be near the AP and the network interface lightning arrester should be near the peer device of the AP The network interface lightning arrester should be installed where the network cable is just led out of the room 8 Network cable Use a shielded twisted pair cables for an AP used outdoors Ensure that ...

Страница 13: ...lly Or you can fix it onto a wall a ceiling or a lifting pole by using the wall mounting bracket Support for the installation method depends on your AP model For more information see the installation guide or quick start of your AP NOTE Some installation accessories for example wall mounting brackets are not shipped with your AP Determine whether to order them as needed ...

Страница 14: ...n through web based network management system Logging in through NMS Powering on the AP and connecting it to a network After installing the AP perform the following steps before logging in to the AP 1 Connect the power supply of the AP and connect it to an Ethernet NOTE For how to connect the power supply and connect your AP to a network see the installation guide or quick start of the AP 2 Check ...

Страница 15: ...P see the installation guide or quick start of the AP Logging in to an AP For more information about how to log in to an AP see Logging In to the AP in the Fundamentals Configuration Guide in the H3C WA Series WLAN Access Points Configuration Guides ...

Страница 16: ...guration When it is associated with an access controller AC or unified switch US it does not need or save any configuration All configurations are performed on the AC or US Configuring basic functions for an AP operating in fat mode An AP operating in fat mode has the default configuration as follows NOTE The default output depends on your AP model version 5 20 Release 1104P01 sysname WA2612 AGN d...

Страница 17: ... dot11g mandatory rate 1 2 5 5 11 dot11g supported rate 6 9 12 18 24 36 48 54 wlan service template 1 clear ssid H3C service template enable interface NULL0 interface Vlan interface1 ip address 192 168 0 50 255 255 255 0 interface GigabitEthernet1 0 1 interface WLAN BSS32 port link type hybrid port hybrid vlan 1 untagged interface WLAN Radio1 0 1 service template 1 interface wlan bss 32 load xml c...

Страница 18: ...e cut disable self service url disable Basic configurations in the default domain system The number of associated clients is not limited Specify the current domain to be in the active state Disable the idle cut function for the current ISP domain Disable the location function of the self service server user group system system is the default user group You cannot delete the default user group but ...

Страница 19: ...50 and the subnet mask is 255 255 255 0 interface GigabitEthernet1 0 1 The interface type supported by the AP interface WLAN BSS32 port link type hybrid port hybrid vlan 1 untagged By default WLAN BSS32 is a hybrid port and removes VLAN tags before forwarding packets from VLAN 1 interface WLAN Radio1 0 1 service template 1 interface wlan bss 32 By default service template 1 is associated with radi...

Страница 20: ...ional Configure the description of the current VLAN VLAN interface name is used by default for example Vlan interface1 Interface Sysname description text 6 Optional Bring up the VLAN interface By default a VLAN interface is in the up state In this case the VLAN interface is up so long as one port in the VLAN is up and goes down if all ports in the VLAN go down An administratively shut down VLAN in...

Страница 21: ...in beacon frames By default the SSID is advertised in the beacon frames If the advertising of the SSID in beacon frames is disabled the SSID must be configured for the clients to associate with the AP Sysname beacon ssid hide 3 Optional Specify the maximum number of associated clients in a BSS Sysname client max count max number 4 Required Enable the authentication method By default open system au...

Страница 22: ...ion for the next startup you must save it using the save command to the configuration file You can save the configuration in either of the following two modes Fast saving mode Fast saving mode is implemented by using the save command without providing the safely keyword The mode saves the file quickly but is likely to lose the existing configuration file if the device reboots or the power fails du...

Страница 23: ...in commands has the same effect The system saves the current configuration and specifies the configuration file as the main startup configuration file to be used at the next system startup During the execution of the save safely backup main command the startup configuration file to be used at the next system startup may be lost if the device reboots or the power supply fails In this case the devic...

Страница 24: ...lication files can exist in the AP as it supports fit and fat For example two main application files exist on a WA2200 WA2200_fit bin or WA2200_fat bin When the AP works in the fat AP mode you can use the boot loader file file url main backup command to specify either of them as the main application file Configuration files With a file extension of cfg the configuration files contain the configura...

Страница 25: ... you do not need to upgrade the BootWare program separately Figure 1 Software upgrade flowchart Start Select an upgrade method Implement upgrade End No Yes Comware application Uppgrade Comware Select correct Comware application Load Comware through the network interface Upgrade with FTP Upgrade with TFTP Upgrade with XMODEM Upgrade through the web interface Auto upgrade through AC management for f...

Страница 26: ...010 Hangzhou H3C Technologies Co Ltd Compiled Date Apr 21 2010 CPU Type PPC 405EP CPU L1 Cache 32KB CPU Clock Speed 266MHz Memory Type SDRAM Memory Size 64MB Memory Speed 133MHz BootWare Size 512KB Flash Size 16MB PCB Version Ver B BootWare Validating Press Ctrl B to enter extended boot menu Starting to get the main application file flash wa2200_fat bin The main application file is self decompress...

Страница 27: ...sword the system enters the BootWare main menu The initial BootWare password is null If you fail to enter the correct BootWare password three times in a row the system will be halted and you need to restart the device manually BootWare main menu Note The current operating device is flash Enter Storage Device Operation to select device EXTEND BOOTWARE MENU 1 Boot System 2 Enter Serial SubMenu 3 Ent...

Страница 28: ...Menu BootWare operation submenu For more information see BootWare operation submenu 8 Clear Super Password Clear the super password The super password is used in user level switching No super password is set by default This setting is valid for the first reboot of the AP only The super password will be restored after a second reboot 9 Storage Device Operation Storage device operation submenu For m...

Страница 29: ...l Interface Parameter 0 Exit To Main Menu Enter your choice 0 3 Ethernet interface submenu Select 3 from the BootWare main menu to enter the Ethernet interface submenu Ethernet interface submenu of the WA2600 series indoor APs Enter Ethernet SubMenu Note the operating device is flash 1 Download Application Program To SDRAM And Run 2 Update Main Application File 3 Update Backup Application File 4 U...

Страница 30: ...are operation submenu Select 7 from the BootWare main menu to enter the BootWare operation submenu BootWare Operation Menu Note the operating device is flash 1 Backup Full BootWare 2 Restore Full BootWare 3 Update BootWare By Serial 4 Update BootWare By Ethernet 0 Exit To Main Menu Enter your choice 0 4 NOTE The WA2200 series and WA2600 series do not support BootWare backup Storage device operatio...

Страница 31: ...r next startup This startup mode is prior to the startup with the factory default configuration If no configuration file exists on the Flash of the AP it boots with the factory default configuration The factory default configuration is set by the vendor of the AP and you cannot modify it Factory default configuration of a fat AP For the factory default configuration of a fat AP see Configuring bas...

Страница 32: ...ching the working mode through the bootware menu The working mode of the AP depends on the main application file in its Flash If the main application file in the Flash is XXXX_fit bin the AP works in the fit mode if the main application file in the Flash is XXXX_fat bin the AP works in the fat mode When setting the working mode through the BootWare menu you need to judge whether the main applicati...

Страница 33: ...stem loads when startup The newly downloaded program is the M program by default B BACKUP Backup B application program If the system finds no M program at startup it loads the B application program automatically S SECURE Secure S application program If all the application programs in the Flash are N A the system automatically loads the S application program at startup N A NOT ASSIGNED Indicates th...

Страница 34: ...Exit Exit the current submenu 3 Select 1 to specify the current application program wa2200_fit bin as the main application program The system then sets file wa2200_fit bin with attribute B to a file with attribute M B and file wa2200_fat bin with attribute M automatically changes to a file with attribute N A Enter your choice 0 4 1 Set the file attribute success 4 The system displays a successful ...

Страница 35: ...ot 1 CAUTION Fat and fit files cannot be stored in the Flash at the same time due to the space limitation of the Flash of the AP Therefore before you switch the working mode of the AP from fat AP to fit AP you must delete the fat file in the Flash to release the space of the Flash When deleting the fat file use the delete unreserved plus name of the file to be deleted in user view you can view the...

Страница 36: ...m and CRC and error packet retransmission mechanism generally the maximum number of transmission attempts is ten The XMODEM transmission procedure is completed by the cooperation of a receiving program and a sending program The receiving program sends a negotiation character to negotiate a check method After the negotiation the sending program starts to send data packets Upon receiving a complete ...

Страница 37: ...0 5 Select an appropriate baud rate For example select 5 for 115200 bps The following information appears Baudrate has been changed to 115200 bps Please change the terminal s baudrate to 115200 bps press ENTER when ready Now that the serial interface baud rate of the AP has been changed to 115 200 bps while that of the terminal is still 9 600 bps the AP and the terminal cannot communicate with eac...

Страница 38: ...tion Figure 4 Reconnect the call 4 Press Enter in the serial interface submenu NOTE After downloading files with a changed baud rate timely change the baud rate back to 9 600 bps in HyperTerminal to ensure the normal display on the console screen when the system boots or reboots ...

Страница 39: ...he communication baud rate by referring to Modifying serial communication parameters Select 2 from the serial interface submenu The following prompt appears Please Start To Transfer File Press Ctrl C To Exit Waiting CCCCCCCCCCCCCCCCCCCC 2 Select Transfer Send file in the HyperTerminal window The following dialog box appears Figure 5 Send File dialog box 3 Click Browse to select the application fil...

Страница 40: ...cation is given this name for example Input the File Name wa2200_fat bin Updating File flash wa2200_fat bin Done 5 Return to the BootWare main menu and enter the file control submenu to set the application as the main application The system boots with this application at the next boot For more information about how to set the main application see Set the selected file as the main application progr...

Страница 41: ...hernet Upgrading applications through TFTP at the CLI The Trivial File Transfer Protocol TFTP is a TCP IP protocol used for file transfer between client and server It provides a simple and low overhead file transfer service TFTP provides unreliable data transfer over UDP and does not provide any access authorization and authentication mechanism It employs the timeout retransmission method to imple...

Страница 42: ...t AP and PC through a PoE switch In the example the IP address of VLAN interface 1 of AP is 192 168 0 2 and that of the PC is 192 168 0 1 Enable TFTP Server on the PC and set the path where the application file is stored NOTE The TFTP server software is not provided with the AP Make sure that it is available Displaying the system files and available space of the storage medium Use the dir command ...

Страница 43: ...xists Overwrite it Y N y Verifying server file Deleting the old file please wait File will be transferred in binary mode Downloading file from remote TFTP server please wait TFTP 7884208 bytes received in 13 second s File downloaded successfully Sysname CAUTION If the file name already exists on the AP the system prompts whether to overwrite the file on the AP You must choose Y or N for confirmati...

Страница 44: ... information about the tftp command see FTP and TFTP in the Fundamentals Command Reference in the H3C WA Series WLAN Access Points Command References To back up a configuration file use the same method Table 9 Output description of commands for application upgrade and backup when the AP serves as a TFTP client Output Description tftp 192 168 0 1 get wa2200_fat bin Download the file to be upgraded ...

Страница 45: ...he AP can only serve as the FTP client rather the FTP server to provide FTP services Setting up an upgrade environment Set up an upgrade environment by referring to Figure 9 and Figure 10 Figure 9 Set up an upgrade environment PC FTP server Ethernet cable Console cable AP FTP client Figure 10 Set up an upgrade environment PC FTP server Ethernet cable Console cable AP FTP client PoE LAN switch As s...

Страница 46: ...e medium Use the dir command on the console terminal to view the files contained in the current file system and the available space For more information about the output description of the dir command see Table 8 Sysname dir Directory of flash 0 rw 7884208 Apr 26 2000 12 04 49 wa2200_fat bin 1 rw 1093 Apr 26 2000 12 01 37 startup cfg 2 rw 9126 Apr 26 2000 12 01 27 config cwmp 3 rw 33 Apr 26 2000 1...

Страница 47: ... You need to choose Y or N for confirmation For information about the get command see FTP and TFTP in the Fundamentals Command Reference in the H3C WA Series WLAN Access Points Command References You can update a configuration file in the way you update an application file A configuration file can be modified by a text editor You can modify a configuration file and then download the modified confi...

Страница 48: ...en existing Overwrite it Y N Prompt you whether to overwrite the file with the same name FTP 7884208 byte s received in 271 703 second s 29 00K byte s sec The file is downloaded and upgraded ftp put wa2200_fat bin wa2200_fat bin Upload the file from the AP to the FTP server for backup FTP 7884208 byte s sent in 271 703 second s 29 00Kbyte s sec The file is uploaded and backed up ftp quit Exit FTP ...

Страница 49: ... Ctrl B to enter extended boot menu 1 When the prompt Press Ctrl B to enter extended boot menu appears press Ctrl B to enter the BootWare menu If you do not press Ctrl B within one second the system displays the following information Starting to get the main application file flash wa2200_fat bin The main application file does not exist flash wa2200_fat bin Starting to get the backup application fi...

Страница 50: ...ver Server IP Address IP address of the TFTP or FTP server Local IP Address Default IP address of the AP Gateway IP Address Gateway IP address no need to set FTP User Name Default FTP username FTP User Password Default password of the FTP user 3 Upon successful download the application is automatically upgraded Updating File flash wa2200_fat bin Done 4 The upgrade is completed and the system start...

Страница 51: ...isk displayed in the format of path filename and their sizes will be in the list below the drop down list Figure 11 File management Downloading a file 1 Select Device File Manage from the navigation tree to enter the file management page as shown in Figure 11 2 Select a file from the list click the Download File button and then a File Download dialog box appears You can select to open the file or ...

Страница 52: ...king Browse 3 Click Apply to upload the file to the specified storage device NOTE Uploading a file takes some time H3C recommends that you do not perform any operation on the web interface during the upgrading procedure Removing a file Select Device File Manage from the navigation tree to enter the file management page as shown in Figure 11 You can remove a file by using one of the following ways ...

Страница 53: ...address of the TFTP server as 192 168 0 1 and 192 168 0 2 for the Ethernet interface of AC or US connecting with the TFTP server Use the ping command to check whether the AP and the AC are connected successfully Associating the fit AP with an AC or a US Viewing the system information of the fit AP Since a fit AP is uniquely associated with the AC or US by the serial ID of the fit AP you need to fi...

Страница 54: ...r the above operations AP view named aptest2 is associated with the fit AP whose serial ID is 210235A29G007C000020 and you can associate the fit AP with the AC or US Automatically upgrading the application of the AP through the AC or US After the associating a fit AP with an AC or US you can automatically upgrade the application of the fit AP through command lines on the AC or US CAUTION Automatic...

Страница 55: ...ase wait File will be transferred in binary mode Downloading file from remote TFTP server please wait TFTP 3262168 bytes received in 17 second s File downloaded successfully Sysname CAUTION If a file system with the same name exists on the AC or US the system prompts you whether to overwrite the existing one Select Y N for confirmation For more information about the tftp command see FTP and TFTP i...

Страница 56: ...ically CAUTION Automatic AP upgrade results in service interruption Therefore perform automatic upgrade when appropriate By default when the AP is being automatically upgrade the AC or US does not give any prompt If the AP cannot work normally as a result of automatic upgrade check whether the AP version is consistent with the AC or US version If not you can download the AP application to upgrade ...

Страница 57: ... space of the flash is not enough the upgrade fails For more information about the dir command see File Management in the H3C WA Series WLAN Access Points Fundamentals Command Reference Display all files in the BootWare menu Select 1 from the file control submenu The following information appears Display all file s in flash M MAIN B BACKUP S SECURE N A NOT ASSIGNED NO Size B Time Type Name 1 78842...

Страница 58: ... where unreserved Permanently deletes the files file url Name of the file to be deleted 1 Remove file test txt in the root directory Sysname delete test txt Delete flash test txt Y N y Delete file flash test txt Done File test txt is removed into the recycle bin To remove the deleted file from the recycle bin use the undelete command 2 Restore the deleted file test txt from the recycle bin H3C und...

Страница 59: ...ord loss User password loss If you forget your user password the system will refuse your login In this case set a new user password by following the steps below 1 Enter the BootWare main menu and select 6 to bypass the current configuration in system startup The following information appears Flag Set Success 2 When the BootWare main menu appears again select 0 to restart the system System is start...

Страница 60: ...erwrite Y N y Validating file Please wait Configuration is saved to device successfully 5 After modifying the user password use the save command to save it Bootware password loss Contact H3C technical support if you forget the BootWare password They will help you log in to the access controller and set a new password To change the BootWare password enter the BootWare main menu select 5 and follow ...

Страница 61: ...hernet SubMenu 4 File Control 5 Modify BootWare Password 6 Skip Current System Configuration 7 BootWare Operation Menu 8 Clear Super Password 9 Storage Device Operation 0 Reboot Enter your choice 0 9 8 Clearing super password succeeded if the following output displays Clear Application Password Success 2 Exit the menu and reboot the access controller You will directly enter system view after the a...

Страница 62: ... If the serial port settings are not correct the serial port works abnormally Solution Check whether the serial port of the PC is connected to the network port of the AP If yes connect the serial port to the port with silkscreen CONSOLE on the AP panel Check the serial port settings of the PC The correct port settings should be 9600 bps baud rate no parity check and 8 data bits Symptom 2 When the ...

Страница 63: ...e power interface for the power adapter the PoE MH has two RJ 45 ports with one 1 at the same side as the power interface and the other 2 on the other side The network cable for power supply should be plugged into RJ 45 2 If it is plugged into RJ 45 1 power cannot be supplied to the AP Solution Plug the network cable for power supply into the correct port of the PoE MH Symptom 4 The optical interf...

Страница 64: ...ptom 6 The AP signal is weak when a client is associated with the AP Analysis Check that The value of the max power is too small No antenna is installed or the antenna is not connected well The 2 4 GHz antenna is installed where the 5 GHz antenna should be installed The settings of the internal and external antennae are incorrect Solution Set the max power to the largest Install an antenna and che...

Страница 65: ...g and lightning protection installation of outdoor antennas connection of external cables indoor installation and outdoor installation of the WA2200 series WLAN access points 802 11a b g H3C WA2210X GE WLAN Access Point Installation Manual Describes the hardware configuration interfaces and LEDs installation preparations grounding and lightning protection installation of outdoor antennas connectio...

Страница 66: ... and benefits Technology white papers Provide an in depth description of software features and technologies Hardware specifications and installation Compliance and safety manual Provides regulatory information and the safety instructions that must be followed during installation Quick start Guides you through initial installation and setup procedures to help you quickly set up and use your ap with...

Страница 67: ...t categories of product documentation Technical Support Documents Technical Documents Provides hardware installation software upgrading getting started and software feature configuration and maintenance documentation Products Solutions Provides information about products and technologies as well as solutions Technical Support Documents Software Download Provides the documentation released with the...

Страница 68: ...sed Text entered into a GUI element such as a box GUI elements that are clicked or selected such as menu and list items buttons tabs and check boxes Italic text Text emphasis Monospace text File and directory names System output Code Commands their arguments and argument values Monospace italic text Code variables Command variables Monospace bold text Emphasized monospace text Indication that exam...

Страница 69: ...result in bodily harm or death CAUTION Indicates that failure to follow directions could result in damage to equipment or data IMPORTANT Provides clarifying information or specific instructions NOTE Provides additional information TIP Provides helpful hints and shortcuts ...

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