I finally got the ISP provider out here one more time, because it finally got to where I could not get on the net at all!
They found out the cable outside was bad and everything is working ok now. It only took them two and a half
months to figure this out.
I just wanted to add a little advice for those that have to deal with cable providers. If you have a broadband service through them and they are out to troubleshoot your
network connection one of the first things you should have them do is test for signal loss coming into the building first!! Then have them work it back to the modem. Data is the first to go when you have high loss on a broadband connection. Do not let them leave without performing this test (any goof tech will do this anyways).
My brother suffered through this same scenario with his provider and had them out on site countless times. They would do a drive-by service call where they would come into the house check to see if his TV and Phone worked and then they would tell him there was a possible problem with the wiring in the house or that it was his modem and needed it replaced. The problem was out on the pole and it would have been a problem to this day without saying/
demanding something from the last technician.
Just make sure they are troubleshooting the problem and not giving you "face time" which must have been what happened in your scenario too.
My 2 cents.