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Intermittent Disconnects

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by klh456

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This has been driving us crazy for several weeks. We have a user, NT 4.0 connecting to a 4.0 Domain with several servers. Periodically throughout the day she will lose connection to one or more servers. We have tried everything we can think of, changed all cables, moved to a different port in the office as well as a different port on the switch, changed NICs, changed PC completely. Nothing has helped. She'll call us about a problem, can't log on to SAP, not getting mail, not able to print. Thenmaybe a half hour later she will call back and say it is now working. This happens two or three times during the day.

Any help would be appreciated.

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by jeff h

It sounds to me like you have done everything possible to eliminate any physical problems. The one thing you didn't mention is to verify the 110vac being used by that particular PC is 'solid' and not being shared with another appliance - like a space heater.
The next step is to attach a protocol analyzer (Sniffer) to that PC's connection and discover why a timeout condition appears.
Good luck.
Jeff

by klh456

A component in our Xylan switch appears to have been the problem. That was replaced last week and she has not had a disconnect for five days. We thought moving her to another physical port was a test for this piece of equipment but it didn't prove to be the case. Thanks to everyone who tried to help.

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