Portbase User Guide
Chapter 7
Appendix
1.
Troubleshooting
This section describes procedures for troubleshooting problems you may encounter with Portbase, and is
divided into the following sections:
z
Installation Problems
z
Configuration Problems
z
Intermittent Problems
z
Protocol-Specific Problems
Troubleshooting Installation Problems
If you cannot access the connected serial device via Portbase, first check the network connection and
cabling.
z
Check the physical cabling to ensure all cables are plugged in (Ethernet and DB-9 serial cable).
z
If the appropriate LEDs are not illuminated, then there is probably a bad 10baseT or 100baseTX
cable, or the hub port is bad. If possible, try a different cable and hub port, or try connecting a
different device to the cable.
z
Verify that you are using the correct values for both IP Address and Port Number.
z
If you are using a hub, verify that the hub port is operating correctly by trying Portbase on a
different port.
Troubleshooting Network Configuration Problems
z
If you are using TCP/IP, make sure that your computer and Portbase are on the same IP segment
or can reach each other with a PING command from the host. The IP address you assign to
Portbase must be on the same logical network as your host computers (e.g., if your computer has
an IP address of 192.189.207.3 and the subnet mask of 255.255.255.0, Portbase should have an
IP address of 192.189.207.x, where x is an integer between 1 and 254), or you must properly
configure your router address to work with Portbase.
z
If your Device Server is set to Auto or DHCP for obtaining an IP Address, it is possible that
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