Ping/Upload Problems

Since a few days i do now get:

* high ping up to 50000

I can see everything ingame happening (incl. Chat) but if i write or play the reaction comes up to 1 minute later. Between the slows i can play very good with a ping of 60 and all other kind of lags (i call them "minilags" or "delays") i had before the high ping problem are gone. It feels like the upload is stuck for a long time very often now. I've tested other programs, where the upload is normal. I know a flash player update was released, so maybe it is related to this. About any kind of useful help i would be very pleasured.

Thanks!
SirCobra