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"Ethernet" does not have a valid ip configuration error

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"Ethernet" does not have a valid ip configuration error

Friend having speed issues since upgrading to Blast, and we wanted to try and connect thru the Wireless Router but when they tried to connect directly to their pc they get this error and no internet connection...

I've tried a few things like restarting, troubleshooting but nothing fixes it.. any ideas?

They called comcast and they said they 'can see wiring issues' and want to send out a tech... but not until Sunday, they are afraid they will be charged service visit...they purchased new SB6183 modem yesterday and speeds still stink..50 Mbps and well below...