Permanent IP ban from Bnet?

[Kp]

The only reasons your connection should be slow are if you're overstressing it or your ISP is artificially capping you.  Your responses make it pretty clear you believe you weren't overstressing it, which means there's something really wrong with your ISP.  Unless you were reconnect spamming so fast they thought it was a poor man's DoS, there's no reason they should've been tweaking your connection limits.  If you were reconnecting that fast, then see prior comments about your client having serious problems.

[Lenny]

Actually, connection throttling by an ISP is rather common.  It's usually done automatically.  This can happen sometimes with bittorents because of the amount of connections created.  My ISP slowly restored the bandwidth to its normal capacity in about 24hrs.

[iago]

Actually, connection throttling by an ISP is rather common.  It's usually done automatically.  This can happen sometimes with bittorents because of the amount of connections created.  My ISP slowly restored the bandwidth to its normal capacity in about 24hrs.

Incidentally, Windows XP SP2 automatically slows outgoing connections.