Sure ...
Firstly, having no firewall is A VERY BAD THING !!!!
However the firewall included in Win SP2 isn't very good. I have ZoneAlarm (it's free), and would seriously recommend that anyone who connects to the internet has a firewall.
The firewall on your router (ie. ADSL Modem) is normally configurable from a web-page front-end (see your router manual). It *seems* like it somehow interferes with the two-way traffic that is needed to keep a connection to the EA master server active.
That's the one I turned off & it made a big difference. For the love of Pete, just don't turn that one off, and the one on your PC off too !!!
That will be just asking for trouble !
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