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windows 7 pc cannot find router


howard64

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My main pc has suddenly started to be unable to find the router which it is connected to by ethernet [cable had been changed for known good ones] it is listed as unidentified network no contact. My other pc connected to the same router has no problem. I have reset the ip address and occasionaly I can get it to connect but the next reboot kills it again. Does anyone have any idea as to what has gone wrong and how to fix it?

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robinofloxley

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Don't know. Recent Windows update screwed it up?

Can you restore to before the updates or when the problem started?

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howard64

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did not fix it

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woodchip

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Delete the connection reboot for it to re-enable find it

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woodchip

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PS in Networking set everything to Auto like DNS etc

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howard64

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have done all that but still the same

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howard64

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reinstalled w7 but made no difference. Now fully formatting hard drive and will install w7 again and see what happens.

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ashleycardwell94

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did you try changing the cable back, maybe one of the copper strands had broken.

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howard64

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still no joy tried different cables and new installation of w7 I am begining to think that the built in ethernet port has failed. I will install a network card and see what happens.

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howard64

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great now working ok with network card

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