DSL performance problem

Greetings

Since some time I'm experiencing a strange problem with my DSL via ethernet connection: initially after turning on the pc, it works fine without any problems. After about 10 minutes the pc is on, the connection dramatically devolves: I often can't connect to any website (if i press several times the refresh button of my browser, it usually finally manages to load the page) or mail server. I can't explain this lack of performance, expecially considering that:

- The problem occurred both on my old system (which always worked perfectly, and it started to occur without me chaning any setting) and after a format which cleaned up everything (the pc is the same).
- I use the Windows XP SP2 firewall and have a router connection, and I never got any trojan or virus or other trouble.

My system is Windows XP Professional + SP 2
I never had any problem with this configuration. Should I ask my ISP? Or could it be something else?
Thanks,
Matteo

 

Sounds like some application is using your connection. Try CurrPorts and see what applications is using network.

 

In addition to the good suggestion above try to check the TCO/IP Stack parameters too.

Link to: Optimizing & Measuring the "Speed" of Internet Connection.