Please advise [View all]

I have AT&T DSL - not super high speed - I'm strictly a surfer. I'm having an issue that is driving me nuts....my internet connects, I can watch Netflix just fine and I can use my tablet with no problem (doing that now) but my laptop - it connects to the Internet, I can surf for about five minutes and then it's PAGE NOT FOUND, SERVER NOT FOUND. When I run a speed test in that first five minutes it comes back as very slow indeed (download 0.30 upload 0.10)

My upstairs neighbor has Frontier FIOS, super high speed....I connected to her Internet and I get the SAME results.

I don't understand what is wrong here - I had the AT&T guys come here last week and they say the connection is fine. They called someone to "rebuild the red back router" but same result.

What do I do to find out what is wrong? I HATE doing all my internet needs on a freaking TABLET. None of it makes sense to me. If the Internet really was that slow, wouldn't Netflix be buffering? I can use my work laptop to log into work just fine. If it's my personal laptop that is the problem, what exactly would be the culprit on the laptop?