My dad currently has DSL service through AT&T. When he first purchased and set up the service, he was given a Siemens SpeedStream modem. Over time the connection speed has slowed to a crawl; I'm not sure if this is due to the modem itself, the computer's network card, or something else entirely. He's seen the different routers for sale at computer stores and neither of us were sure if they would be compatible with his current setup, or even if buying one would have any kind of benefit speed-wise. He doesn't want to upgrade or change services if he can avoid it. Any thoughts?
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