Ethernet or wireless is connected but no Internet access

My laptop OS is Win 7 64 bit. My laptop able to connect to the internet, but it suddenly can't connect to the internet via the Ethernet or wireless. I tried to system restore and it worked fine, but after I stopped, the problem was took place again. I don't know if because of the McAfee antivirus or window updates because it has some errors (to McAfee) and Skype has been updated before I had this problem (no internet access).

McAfee has been updated at the same time as the last batch of updates from Windows 7 and this is the cause of problems of internet connection for most, if not all, users of McAfee.

See the communication from this "criticism" - McAfee

Some customers may experience a loss of network connectivity and/or errors in McAfee Security Center after a recent update

You should make the fix McAfee, if necessary. There are corresponding communications for their enterprise products.

Tags: Windows

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