User's Manual

Table Of Contents

Tsunami MP.11 2454-R, 5054-R, and 5054-R-LR Installation and Management

Chapter 7. Troubleshooting 126

2. Ensure that you are using one of the following Web browsers:

Microsoft Internet Explorer version 5.0 or later (Version 6.0 or later recommended)

Netscape version 6.0 or later.

3. Ensure that you are not using a proxy server for the connection with your Web browser.

4. Ensure that you have not exceeded the maximum number of Web Interface or CLI sessions.

5. Double-check the physical network connections. Use a well-known unit to ensure the network connection is

properly functioning.

6. Perform network infrastructure troubleshooting (check switches, routers, and so on).

COMMUNICATION ISSUES

Two Units Are Unable to Communicate Wirelessly

If a wireless link is possible after testing two units within close distance of each other, then there are two possible

reasons why wireless connectivity is not possible while the MP.11 units are at their desired locations:

• There may be a problem in the RF path, for example, a bad connector attachment (this is the most common

problem in installations) or a bad cable (water ingress).

Note: The cables can be swapped with known good ones as a temporary solution to verify cable quality.

• Another reason may be related to an interference problem caused by a high signal level from another unit.

This can be checked by changing the frequency and then verifying whether another channel works better or

by changing the polarization as a way of avoiding the interfering signal. To know in advance how much

interference is present in a given environment, a Spectrum Analyzer can be attached to a (temporary)

antenna for measuring the signal levels on all available Channels.

Note: The antennas are usually not the problem, unless mounted upside down causing the drain hole to be

quickly filled with radome.

If a wireless link is not possible after testing two units within close distance of each other, then the problem is

either hardware or configuration related, such as a wrong Network name, Encryption key, Network Secret or Base

Station Name. To eliminate these issues from being a factor, resetting the both units to factory defaults is the