background image

 

 

-33- 

Chapter 4 Troubleshooting 

If you have trouble using the WLAN-9100 Wireless LAN Access Point, the starting point to 
troubleshoot the problem with your Access Point is looking at the LED activity of the Access 
Point.    The following is “LED Error Table” provided to assist you in diagnosing and solving 
operational problems. 

PWR

 

AP

 

WLAN 

LAN 

LINK 

Description/Action 

Steady 

Green 

Continuous 

Green 

Flash 

Green 

Flash 

Green 

Normal operation where flickering 
indicates interface activity. 

 

No action required. 

Continuous 

Green 

On 

Off 

Off 

Normal operation that indicates 
there is no LAN activity. 

 

No action required. 

Off 

Off 

Off 

Off 

Off 

Power failure. 

 

Check the power cord. 

 

Check the power supply. 

Off 

Off 

Off 

Off 

Invalid loader firmware or the 
micro-controller is dead. 

 

Return the unit to the vendor 
for support. 

Blink Green 

Invalid Access Point firmware. 

 

Upgrade the firmware via the 
utility or console mode. 

Blink Green 

Blink 

Green 

Wireless LAN initialization failure 

 

Check whether the wireless 
module has been properly 
installed. 

Continuous 

Green 

Blink Green 

Blink 

Green 

Ethernet initialization failure 

 

Return the device to the vendor 
for support. 

 

Summary of Contents for WLAN-9100

Page 1: ...W WL LA AN N 9 91 10 00 0 T Th he e 1 11 1M Mb bp ps s W Wi ir re el le es ss s L LA AN N A Ac cc ce es ss s P Po oi in nt t Date of Issue Jan 1 2001 ...

Page 2: ...the equipment being operated within an industrial enclosure In order to protect the WLAN 9100 system from being damaged by ESD Electrostatic Discharge and EMI leakage we strongly recommend the use of CE compliant industrial enclosure products FCC Information This equipment has been tested and found to comply with the limits for a Class A digital devices pursuant to part 15 of the FCC Rules These l...

Page 3: ...ng people who work with the antenna should be aware of the following rules 1 Install the antenna in a location where a distance of 20 cm from the antenna may be maintained 2 While installing the antenna in the location please do not turn on the power of wireless card 3 While the device is working please do not contact the antenna ...

Page 4: ...alers are well trained and ready to give you the support you need to get the most from your Advantech products In fact most problems reported are minor and are able to be easily solved over the phone In addition free technical support is available from Advantech engineers every business day We are always ready to give advice on application requirements or specific information on the installation a...

Page 5: ...ANTECH s RMA website http www advantech com tw rma If the web sever is shut down please contact our office directly You should fill in the Problem Repair Form describing in detail the application environment configuration and problems encountered Note that error descriptions such as does not work and failure are so general that we are then required to apply our internal standard repair process 4 C...

Page 6: ...2 Hardware Installation 4 2 1 Product Kit 4 2 2 System Requirements 4 2 3 Mechanical Description 5 2 4 Hardware Installation 6 Chapter 3 Configuring the Access Point 8 3 1 Using the Access Point Manager 8 3 2 Using the Web Management 199 3 3 Using the Console Mode 233 Chapter 4 Troubleshooting 333 Appendix A Network Configuration 355 Appendix B Glossary 399 ...

Page 7: ...l for transmission security This makes it suitable for high security network We also provide four convenient methods to configure WLAN 9100 Web management telnet configuration utility RS 232 You can configure it via Internet remotely For further protecting transmission security WLAN 9100 adapts MAC access control to limit the specific wireless LAN devices to join the network 1 1 Features and Benef...

Page 8: ...N America FCC 2412 2 462 GHz 11 channels Europe CE ETSI 2 412 2 472 GHz 13 channels Japan 2 412 2 484 GHz 14 channels France 2 457 2 472 GHz 4 channels Spain 2 457 2 462 GHz 2 channels Speed Options 11M 5 5M 2M 1M also support Auto Rate Selections RF Technology Direct Sequence Spread Spectrum Power Supply DC 12V External power supply included RF Output Power 13 dBm Sensitivity 84dBm 11Mbps PER 8 1...

Page 9: ...nications This would increase efficiency of the communications since the wireless adapters do not need to be within direct range of each other Wireless Infrastructure with Stations Attaching to a Wired LAN The WLAN 9100 Wireless LAN Access Point will provide access to a your local LAN An integrated wireless and wired LAN is called an Infrastructure configuration A group of wireless LAN PC users an...

Page 10: ... above items are not included or damaged please contact your local dealer for support 2 2 System Requirements Installation of the WLAN 9100 Wireless LAN Access Point requires 1 An AC power outlet 100 240V 50 60Hz which supplies the power for the Access Point 2 A 10 100 Base T UTP Ethernet cable drop Note Only if you want to re configure the WLAN 9100 Wireless LAN Access Point instead of using fact...

Page 11: ...panel of the WLAN 9100 Power Socket The power adapter plugs into the socket labeled POWER Ethernet Ports The WLAN 9100 Wireless LAN Access Point supports two types of Ethernet ports RJ 45 MDI daisy chain port labeled MDI and RJ 45 MDI X station port labeled MDI X To connect the WLAN 9100 to a hub use the MDI port to connect the WLAN 9100 to a computer station use the MDI X port Both connection por...

Page 12: ...ter of your wireless coverage area Try to place your mobile stations within the line of sight Obstructions may impede performance of the Access Point Access Point Placement You can place the Access Point on a flat surface such as a table or cabinet or mount the unit on a vertical surface like a wall The integrated antenna of your WLAN 9100 performs best in an open environment with as few obstructi...

Page 13: ...plug the other end of the power into an electrical outlet The WLAN 9100 will be powered on and all five indicators on the top panel will flash in sequence to test the functionality of the indicators NOTE ONLY use the power adapter supplied with the WLAN 9100 Otherwise the product may be damaged ...

Page 14: ...r the Windows based utility Access Point Manager provides a user friendly interface The Access Point Manager enables you to configure all of your WLAN 9100 on the network more easily than ever before The following gives instructions guiding you through the installations of the Access Point Manager utility 1 Insert the Software and Documentation CD into the CD ROM drive or the floppy disk that came...

Page 15: ... 9 ...

Page 16: ...ill see the basic information of the Access Point such as MAC Address Frequency Domain and Firmware Version MAC Address It is a hardware identification number that distinguishes the unit from others You will see the number on the label located on the bottom of the WLAN 9100 Frequency Domain The regulated operating frequency per country Firmware Version Displays the firmware version that is equippe...

Page 17: ...istics tab contains three of the following items for you to monitor the Ethernet and Wireless network traffic Ethernet You may monitor the TX RX on the wired network Wireless You may monitor the TX RX of the wireless network ...

Page 18: ...ave WEP encryption errors Transmit Deferred Transmission The number of packets that have deferred transmission due to the fact that the medium is busy Retry Limit Exceed The number of packets that are not sent due to the reason that the packets exceed the retry limits Single Tries The number of packets that are successfully sent on the first retry Multiple Retries The number of packets that are su...

Page 19: ...etween wired and wireless network Inter Building with Repeating PxP Connect several separated networks with WLAN 9100 To be available soon Station Adapter Infrastructure SAI Served as a wireless station infrastructure Connected to a PC it is able to access the network via Access Point Station Adapter Ad hoc SAA Served as a wireless station Ad hoc Connected to a PC this station adapter along with o...

Page 20: ...ously at the Access Point The collision will most certainly result in a loss of messages for both stations Thus the RTS Threshold mechanism will provide the solution to prevent data collisions When the RTS is activated the station and its Access Point will use a Request to Send Clear to Send protocol RTS CTS The station will send an RTS to the Access Point informing that it is going to transmit th...

Page 21: ... the new setting take affect IP Address To enable remote access to the WLAN 9100 using Telnet you must assign an IP address to the Access Point You may also assign other related Internet addressing options such as subnet mask or gateway address Consult your network administrator to obtain an available IP address Default IP address 192 168 1 1 ...

Page 22: ... the Access Point with or without data encryption When WEP40 or Optional WEP40 is selected type five alphanumeric characters in the range of a z A Z and 0 9 e g MyKey in the WEP Key 1 entry field Alternatively you may enter 10 digit hexadecimal values in the range of A F and 0 9 preceded by the characters 0x values e g 0x11AA22BB33 You can also enter WEP keys in the Key 2 Key 3 and Key 4 if you wi...

Page 23: ...r Access Control With the Access Control Table enabled you can authorize wireless units to access the WLAN 9100 by identifying the MAC address of the wireless devices that are allowed access to transmit data To create or edit the Access Control Table do the following Go to the Access Control tab and select Enable Access Control Note that when you enable the Access Control Table without any MAC add...

Page 24: ...dit to change the entries in the table if you enter the incorrect MAC address Remove to remove MAC addresses one at a time Clear to remove all MAC addresses in the table Import to import an existing Access Control Table Export to save the current Access Control Table to a location on your computer You can save the file as a text document ...

Page 25: ...ll allow you via web browser e g Netscape Navigator 3 0 4 5 or MS Internet Explorer 4 0 to monitor and configure the Access Point 1 Open your web browser 2 Enter the IP address of your WLAN 9100 in the Address field e g http 192 168 1 1 You will have access to the Access Point Web Pages of the access point 3 Enter the password to login to the WLAN 9100 The default password is default The main page...

Page 26: ...ess Point main page contains two items for you to manage your WLAN 9100 Information General This item displays the general information of the WLAN 9100 such as the MAC address Frequency Domain and Firmware Version ...

Page 27: ...tatistics This item displays the Ethernet and wireless network traffic Configuration General You may make the settings on the WLAN 9100 as ESSID channel AP mode RTS threshold fragment threshold and password ...

Page 28: ...LAN 9100 Wireless LAN Access Point offers WEP Wired Equivalency Privacy You can set up 4 encryption keys but choose one key to encrypt your data Access Control The Access Control Table enables you to restrict wireless stations accessing the WLAN 9100 by identifying the MAC address of the wireless devices ...

Page 29: ...e RS232 connection or Access Point Manager and then telnet to the WLAN 9100 anywhere to get access to the Access Point console Thus you will be able to make the configuration via the TCP IP connection The following are the instructions to configure the WLAN 9100 through RS232 connection under Windows Configuration through Telnet is the same as the RS232 configuration 1 Attach the 9 pin or 25 pin c...

Page 30: ... 24 3 Select the Com port and click OK 5 Set the port settings to 57600 bps 8 data bits no parity no flow control Click OK ...

Page 31: ...ollowing are the commands provided for configuring the WLAN 9100 In loader mode i e no valid firmware in the Access Point only the commands with an asterisk are provided NOTE xxx stands for optional arguments Info Display some basic information of the WLAN 9100 for example firmware version frequency domain etc ...

Page 32: ...ration of the WLAN 9100 for example association status LAN WLAN interface load etc passwd clear Change the password of the WLAN 9100 The clear option is used to delete the existing password if you miss it This option is only available in RS232 console ...

Page 33: ...Ping ICMP echo to an ip_addr host with optional num_pings times with optional data size in a length of data_size set List the configuration information Set apname channel essid rts_threshold frag_threshold ip_address ip_netmask ip_gateway ...

Page 34: ...octets of Access Point s MAC address Mode The operation mode of the WLAN 9100 The Access Points supports the following modes ap Wireless LAN Access Point AP sai Station Adapter Infrastructure SAI saa Station Adapter Ad hoc SAA pxp Inter Building with Repeating PxP Ap Channel The radio channel number 1 Essid The ESS ID a k a SSID of the Access Point My Network rts_threshold The threshold number of ...

Page 35: ...AN 9100 except for the IP addresses A save command is required for changes to take effect cls Clear the console screen exit Exit the console or help Print a help screen rz Receive a firmware file by the Zmodem protocol The console will enter Zmodem receiving mode and then use the file upload function of your terminal emulation program to upload a new firmware file ap img to the Access Point Upon c...

Page 36: ...address filter of the WLAN 9100 The access control table consists of a list for you to control the accessibility of any wireless stations or repeaters The sub commands are listed below mode open allow set the access control mode The definition of each mode is specified as follows open open to public default restrict only allow access of the authorized stations repeaters in the table no access is a...

Page 37: ... allowing non WEP clients associating to the WLAN 9100 as well set key1 key_text set WEP Key 1 as key_text 10 hexadecimal digits 0 9 or A F heading by 0x or five alphanumeric values ASCII characters case sensitive are required if 40 bit WEP is used Example 0x1122334455 0x0055AA55AA abcde or MyKey set key2 key_text set WEP Key 2 as key_text with a same format as WEP Key 1 set key3 key_text set WEP ...

Page 38: ... 32 Note Your new WEP settings will take effect after resetting the WLAN 9100 ...

Page 39: ...rface activity No action required Continuous Green On Off Off Normal operation that indicates there is no LAN activity No action required Off Off Off Off Off Power failure Check the power cord Check the power supply Off Off Off Off Invalid loader firmware or the micro controller is dead Return the unit to the vendor for support Blink Green Invalid Access Point firmware Upgrade the firmware via the...

Page 40: ...reless connection with the network You may check the following to ensure normal operation of the WLAN 9100 WEP keys If data encryption is activated always remember to set WEP keys exactly the same on the Access Point as are on the wireless stations Access Control Make sure that the MAC address of your WLAN 9100 is not included in the Access Control table of other wireless devices ...

Page 41: ...ANs Infrastructure for enterprise LANs LAN Interconnection for point to point link as a campus backbone A 1 Network Topology Ad Hoc Fig An Example of Ad Hoc Wireless LAN An Ad Hoc wireless LAN is a group of computers each equipped with one wireless adapter connected as an independent wireless LAN Computers in a specific Ad Hoc wireless LAN must be configured at the same radio channel Ad Hoc wirele...

Page 42: ...ccess Point construct a Basic Service Set BSS Each wireless equipped PC in this BSS can talk to any computer in the wired LAN infrastructure via the Access Point Infrastructure configuration will extend the accessibility of a wireless station to the wired LAN Multiple Access Points will allow roaming and it will increase the transmission range The Access Point is also able to forward data within i...

Page 43: ... 37 Fig The effective Transmission Range ...

Page 44: ... 38 ...

Page 45: ... Basic Service Set an Access Point and all the wireless clients that associated with it ESS Stands for Extended Service Set More than one BSS can be configured as an Extended Service Set Mobile users can roam between BSS in an ESS Ethernet A popular local area data communications network originally developed by Xerox Corp which accepts transmission from computers and terminals Ethernet operates on...

Page 46: ...t hear each other RTS CTS mechanism can solve this Hidden Node Problem If the packet size is smaller than the preset RTS Threshold size the RTS CTS mechanism will NOT be enabled Web Management Network management by using web browser connecting to the target devices ...

Reviews: