No other device in my house is having problems, but my girl's DSi LL is having trouble with connecting to the internet about 50% of the time. It returns the 52200-1 error. According to Nintendo's site, it means, "The Access Point you are attempting to connect from is not connected to the internet or a firewall is blocking traffic necessary for connecting to Nintendo Wi-Fi Connection."
I've reset my router and modem, which was the cause last time my internet connection became "iffy" -- that was when my 360 didn't want to connect. Unfortunately, it didn't seem to change anything for the current situation.
I've also noticed that my BitTorrent ports are being closed; they are reopened if I reboot my Mac or even just restart the BT app. But though I've had my machine running constantly, I'm not reaching my usual BT ratio on the seeding torrents.
Is it possible the ISP is blocking my traffic, or has put a firewall on my modem, or even upstream from it?