Have you tried calling your ISP? It might not be a problem with the OBS version you switched to. Maybe your ISP is doing what a lot of others are... traffic shaping. If all else fails, you can always revert back to an earlier version of OBS.
Try this tool to test if you're being effected by traffic shaping.
http://www.cc.gatech.edu/~partha/diffpr ... rProbe.exe
Try this tool to test if you're being effected by traffic shaping.
http://www.cc.gatech.edu/~partha/diffpr ... rProbe.exe