Remote Desktop Slow when connecting via win 7 but fine with wyse device
Posted on 2012-03-15
I am connecting to a Windows Server 2008 R2 Remote Desktop Session Host (Terminal) Server through a very fast WAN connection (4 mb up with 15ms latency) using RDP 7.1. (NOT virtualized) I am using a proprietary database application used for Dental Practice Management. I connect using new Dell Windows 7 64-Bit Professional machines in a domain between remote offices. I connect and log in quickly and proceed to open the software. During the application startup process it takes about 45-60 seconds for the application to get a login prompt. If I open the app locally or through a Wyse device I do not see the delay in login taking 5-10 seconds. After the app is loaded I get very poor performance and the app seems to "lock up" with slow page scrolling, moving between screens and viewing\scheduling using the calendar. I have tried with or without remoteFX. Changing the connection settings, ie. 16-bit video, no local resources and setting the experiance to 56k. With remoteFX I get much better performance taking advantage of the WAN 10mb experience and remoteFX. If i use RDP through the LAN I do not experience the issue. The connectivity over WAN is very good. Fair refresh time, no problems loading graphics or even scrolling through .jpg icons. I have used Ericom Blaze and found it to help significantly but the underlying problem is still there. If I connect using a Wyse device over WAN I DO NOT experiance the slow application loading or the general slow RDP symptoms. I am hoping someone may have a recommendation that takes into account the fact that the internet line and latency do not seem to be the problem. Also I do not believ this is a remotefx issue. I think it is unique to RDP from Windows 7 SP1 to Server 2008 R2 SP1. Finally I have duplicated the problem at both locations. What I mean is that I have the same problem connecting from server A to location B and server B to location A. Different but identical Dell T710 servers with Dual Zeon X5670 processor’s, 4-15k Drives with 2 Raid 1 virtual drives and 24 GB Ram. Same OS, updates, Anti-Virus and domain setup as well as software and user setup and security.The Remote Desktop Servers connect to a 2nd separate domain controller and have no other services (DNS,DHCP, AD) loaded other then Remote Desktop Session Host.