Listener stops accepting client requests/connections

Hello Folks,  

Has anyone any idea what this issue could be.

We have two servers a 9.2.0.3 and 8.1.7.4.1 both on Windows 2000 Servers

Both these servers' listeners have started an odd behavior, for no apparent reason they stop receiving/accepting client access.

However if you are connected you remain connected. There is also no specific time base for this behavior. Once the Listener services have been bounced everything appears normal for a day or so, then it happens again.

Strangely if we have had to stop and start the server because of parameter changes/anything the Listener is fine until a day or two thereafter.  

I have had the problem with Oracle metalink and passed tons of trace files and logs, with nothing.

This has become very frustrating.  

Has anyone else experienced this?  

Regards

Denham

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