Need help with DSL

Hi, i've been having trouble with my internet over the past couple of months, it will randomly just go out for hours at a time, I thought it might of been my computer but its doing the same thing on my bran new comp. I was wondering what should I do, the current modem I havbe is a "speedstream 5100" the thing is pretty old, will a new one fix the problem or is it something else? Also when I do connect my internet is slow as hell, it takes me forever to download stuff and I get bad ping on online games.

Contact the provider. They might even issue you a new modem to stay up and current.

Either 2 things are wrong
1: bad wiring in your house. Either a wire pair broke somewhere or gone bad

2:Somewhere either at your dmarc or outside circuit box a pair is bad or broken.

I had this similar issue where if I was on for awhile I got dropped. Seems a tech was adding somebodies new phone and accidently(yeah right) broke one of my pairs. So the only pairs connected would flood and kill the connection.