Appendix A Troubleshooting; Overview; General Problems; Internet Access - TRENDnet TEW-435BRM User Manual

Appendix A
Troubleshooting
This Appendix covers the most likely problems and their solutions.

Overview

This chapter covers some common problems that may be encountered while using the TEW-
435BRM and some possible solutions to them. If you follow the suggested steps and the
TEW-435BRM still does not function properly, contact your dealer for further advice.

General Problems

Problem 1: Can't connect to the TEW-435BRM to configure it.
Solution 1: Check the following:
•
The TEW-435BRM is properly installed, LAN connections are OK,
and it is powered ON.
•
Ensure that your PC and the TEW-435BRM are on the same network
segment. (If you don't have a router, this must be the case.)
•
If your PC is set to "Obtain an IP Address automatically" (DHCP
client), restart it.
•
If your PC uses a Fixed (Static) IP address, ensure that it is using an IP
Address within the range 192.168.0.2 to 192.168.0.254 and thus
compatible with the TEW-435BRM's default IP Address of
192.168.0.1.
Also, the Network Mask should be set to 255.255.255.0 to match the
TEW-435BRM.
In Windows, you can check these settings by using Control Panel-
Network to check the Properties for the TCP/IP protocol.

Internet Access

Problem 1: When I enter a URL or IP address I get a time out error.
Solution 1: A number of things could be causing this. Try the following troubleshooting
steps.
•
Check if other PCs work. If they do, ensure that your PCs IP settings
are correct. If using a Fixed (Static) IP Address, check the Network
Mask, Default gateway and DNS as well as the IP Address.
•
If the PCs are configured correctly, but still not working, check the
TEW-435BRM. Ensure that it is connected and ON. Connect to it and
check its settings. (If you can't connect to it, check the LAN and power
connections.)
•
Check the TEW-435BRM's status screen to see if it is working
correctly.
Problem 2: Some applications do not run properly when using the TEW-435BRM.
A
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Wireless ADSL Router User Guide
The TEW-435BRM processes the data passing through it, so it is not
Solution 2:
transparent.
For incoming connections, you must use the Virtual Server or Firewall
Rules to specify the PC which will receive the incoming traffic.
You can also use the DMZ function. This should work with almost every
application, but:
•
It is a security risk, since the firewall is disabled.
•
Only one (1) PC can use this feature.

Wireless Access

Problem 1: My PC can't locate the Wireless Access Point.
Solution 1: Check the following.
•
Your PC is set to Infrastructure Mode. (Access Points are always in
Infrastructure Mode)
•
The SSID on your PC and the Wireless Access Point are the same.
Remember that the SSID is case-sensitive. So, for example
"Workgroup" does NOT match "workgroup".
•
Both your PC and the TEW-435BRM must have the same setting for
WEP. The default setting for the TEW-435BRM is disabled, so your
wireless station should also have WEP disabled.
•
If WEP is enabled on the TEW-435BRM, your PC must have WEP
enabled, and the key must match.
•
If the TEW-435BRM's Wireless screen is set to Allow Trusted PCs
only, then each of your Wireless stations must have been designated as
"Trusted", or the Wireless station will be blocked.
•
To see if radio interference is causing a problem, see if connection is
possible when close to the TEW-435BRM.
Remember that the connection range can be as little as 100 feet in poor
environments.
Problem 2: Wireless connection speed is very slow.
The wireless system will connect at the highest possible speed, depending
Solution 2:
on the distance and the environment. To obtain the highest possible
connection speed, you can experiment with the following:
•
TEW-435BRM location.
Try adjusting the location and orientation of the TEW-435BRM.
•
Wireless Channel
If interference is the problem, changing to another channel may show a
marked improvement.
•
Radio Interference
Other devices may be causing interference. You can experiment by
switching other devices Off, and see if this helps. Any "noisy" devices
should be shielded or relocated.
•
RF Shielding
Your environment may tend to block transmission between the wireless
stations. This will mean high access speed is only possible when close
to the TEW-435BRM.
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