internet connection dropping out

Hopefully, I won't ramble too much.  For the last 4 or 5 days, while using my tablet periodically, I will get a msg that says "unfortunately, internet connection lost".  It was mostly when I was on Yahoo, but today it has been exclusively on CNN.  When I open CNN, I lose the connection within about 10 or 15 seconds.

Last night, I was on chat with Uverse for an hour and a half and all they came up with was to change in channel on the router. I tried all the channels, but nothing changed.   I also did the trouble shooting on each channel and it said my wi-fi signal was weak.

My download speed is about 7.5 (I subscribe to 6 mbps) and upload 1.5. 

I don't have the same problem with my PC.

For quite some time, my phone would buzz and then lose it's connection, but I never got the on screen message.  It happened so infrequently, I did not think much of it.

Hopefully, someone will move to the right board.