I have a hard time with RDP at one location. This location has the fastest service comcast has but RDP keeps hanging. At another location where I am at a very slow connection, probably in the 1.5Mbs range I do not have an issue.
I have tried pinging and tracrt to the router and modem and the speed is very fast. There is a self hosted voip box and about 10 others. Regular internet browsing and email works, but I RDP hangs a lot. Could be related but there are a high rate of dropped calls on VOIP. The VOIP is Zulty's.