I have a couple of customers who keep “losing” computers throughout the day.
The are all Peer-to-peer and consist of less than 13 computers and networked devices like printers.
In both cases they are a mixture of XP and Vista.
What happens is one or more computers just quits seeing other computers BUT they still see other computers. Confusing?
All computers see everyone and everything at 9 am. At 9:19 Computer A no longer sees Computer B, C and D. In most cases B,C and D can still see A but not always. Now at say 11:12 am Computer A can magically see everyone again. Now it is 1:34pm and Computer F no longer sees A, D, M, and N but once again sees everyone else.
I have checked all LAN cables with a cable tester, I have replaced routers and switches at both locations.
This occurs more frequently (but not solely) on the Vista Machines, especially Vista to Vista.
I tried Wireshark and SpiceWorks but they just did not help me. Yes, I did/do check event logs on the computers but again, nothing.
