I recently received a new modem from my ISP, the newest model. I'm using utorrent 1.7.7 and on most of my torrents this is the error that I get: Tracker sending invalid data: <NULL>.
It is not doing this on all of my active torrents but on 90% of them. I don't know what the problem is. If anyone has an idea, your input is welcome.
Could it be because of an IP change caused by switching to a new modem?
Thank you all for taking you time to read my plea.
I think I have figured it out. It was probably the port forwarding. I when to www.portforward.com to solve the problem and it seems to be working. My new modem comes with a built in network. Which means, I don't need my router anymore.