I have a 256kbps unlimited connection. Day before yesterday, I got my older modem replaced by a wireless modem (router?) - a Nokia Siemens Networks Residential Router 1600. But it was not working. So yesterday, a guy from my ISP came and reconfigured the router. He also reconfigured it so that as soon as the OS (XP Professional 32 bit) boots, the internet is connected. Earlier, we used to connect via the WAN-miniport using the 'connect to' option. I don't know what changes he made.Now, the internet is working fine for browsing and downloading, but there are some really strange problems. The first thing I noticed was that my Facebook seems to be completely malfunctioning. I will note it in points (I use Firefox 3.5 and IE8):-Using Firefox, FB opens fine, but I can't like a post, comment on a post, or even write on the wall. I can't even chat there. In fact, I can't do anything except browse. I removed an application (Zynga Poker, because it wasn't working) and it went fine, but when I tried to add it back, nothing happens. In fact, I can't even change any settings! I just click a button or link, and I see waiting/transferring, but nothing actually happens.-This made me try IE8. Well, the normal FB works fine, ie i can comment, post and chat now, but it won't add most applications without a lot of trouble. This could be a problem from FB's end, but I doubt that. I can also change the settings without any hassle!-Finally I managed to re-add both Farmville and Poker. Farmville loads and runs fine, but Poker just won't load. It doesn't even go to the point where it mentions flash player. This happens both in Firefox and IE.-Also, some forums are giving me a problem with editing my posts including here. As soon as I try to post, it just hangs in there saying 'loading'. This has happened 100% of the time here and many times in other forums.-I shut down the firewall completely. Maybe that has something to do with my being able to finally post this.All this making me mad! Please help 😢I use AVG 9 free, Spybot S&D and Sygate personal firewall for protection.If you need any more information, please say so. Also, I re-installed the OS a few days ago, so the likelyhood of a virus is extremely low.EDIT: It is definitely the firewall, because now I can post everywhere and even start Poker!But I need the firewall. Any idea how to reset it completely. That BSNL guy must have ignored the firewall when it notified him about something and caused this.EDIT 2: I must clarify that I couldn't even post or PM here before shutting down the firewall, although I could do some of it in other forums.