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Windows 7: LAN PC suddenly not visible to other PCs but can see them as usual


29 Oct 2013   #1

windows 7 home premium 64, windows xp home
 
 
LAN PC suddenly not visible to other PCs but can see them as usual

I first noticed that something was wrong with the connectivity of one of my LAN PCs (Windows 7) when my Beyonwiz PVRs stopped listing it. Previously all four PCs (three 7s and one XP) had two-way connection.

I found that the 'missing' PC could see the other three as usual, but the others had lost connection with it.

I have tried another ethernet cable without any improvement. There is, of course, one-way communication, so the problem has probably arisen elsewhere.

One of the other PCs did come up with a Windows Network Diagnostic message: 'Problem found: file and print resource (COMPUTERNAME) is online but isn't responding to connection attempts'.

The question is why this hiccup has suddenly occurred. I would be very grateful for advice as to a fix.

My System SpecsSystem Spec
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29 Oct 2013   #2

windows 7 home premium 64, windows xp home
 
 

Nobody has responded to this problem as yet. Does this mean that this is an insolated issue being suffered by me alone?

Perhaps this is a physical thing, involving a fault in the ethernet port in the PC (a Toshiba all-in-one still under warranty) or in the ethernet plug in the wall, resulting in one-way communication only?

I have got further info from Windows: 'The remote computer isn’t responding to connections on port 445, possibly due to firewall or security policy settings, or because it might be temporarily unavailable. Windows couldn’t find any problems with the firewall on your computer'.
My System SpecsSystem Spec
29 Oct 2013   #3
2xg
Microsoft MVP

Win7 & Win8 64bit
 
 

Hi there,

Most of us are very busy (with full-time jobs) and we're all volunteers and we try our best to assist as much as we can.

Anyway, what type of AV, Firewall or Security Programs do you have installed?

Have you considered a System Restore from your Windows 7? Try restoring it to a previous date before this issue started.
My System SpecsSystem Spec
.


29 Oct 2013   #4

windows 7 home premium 64, windows xp home
 
 

Many thanks for your suggestions. I keep forgetting to try System Restore in situations such as this. It worked and my PC again became a fully accredited network citizen. However, I went back beyond a swag of so-called critical updates. If I again succumb to Microsoft's pleading, it will be interesting to see if an update again interferes with my personal settings.
My System SpecsSystem Spec
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 LAN PC suddenly not visible to other PCs but can see them as usual




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