well... yes I think so there is a bug in
Task Manager->Networking Tab->View->Select Columns->Check
1. Bytes Sent
2. Bytes Received
so, as my computer runs 24/7 and I do alot of downloading I mean a lot!, so when the Bytes counter reaches some 4xxxxxxxxx bytes it resets and starts over again... I think the data type of the variable behind the Bytes counter is 'uint' which has limit (0 To 4,294,967,295) so, this probably is a bug which should be addressed? any patches or solutions?