Remote Desktop Encryption error at the client
I'm suddenly receiving a critical remote desktop error at the client stating the following (it differs from time to time) "Because of an error in data encryption, this session will end. Please try connecting to the remote computer again." "Because of a protocol error detected at the client (code 0x1204), this session will be disconnected. Please try connecting to the remote computer again." I've been running on the same windows 7 64 bit build on a Dell M4500 for well over a year in RDP sessions daily over VPN's without issue. Suddenly one day last week i began receiving this error. I can, on occasion, connect to local LAN RDP's without the error immediately but have experienced the error even on LAN sessions after 3-5 minutes of use. Sometimes on a LAN it will go much longer. Now, for remote sessions, i cannot authenticate at all. I typically get to the login screen, enter my credentials, then immediately the error pops up and drops the connection. Every time. I've tried this to multiple different WAN's so i know it's not at the server level. I also know it's not on my LAN as other PCs on the LAN connect fine without this error so it's local to this PC. After hours of diagnosing and reading articles i decided to just rebuild from the ground up, fresh install of windows, applied all service packs, updates and installed my VPN client and attempted the connection -- same error. I even used a brand new HDD (SSD) as i was wanting to upgrade it anyway. Now i recognize that i should have tried the connection before all other patches were installed (troubleshooting 101, sorry) but trying to avoid a 3rd install and hoping for assistance. I typically disable system restore so rolling back isn't an option. At this point i believe it's hardware related or an update causing the problem. It's also worthy to note that I've updated NIC and WLAN drivers, disabled TOL, and tried the connections over both connections -- same problem. I'm almost certain it's a client problem. I receive the error trying to connection to server 2003, 2008, WIN7 or even XP remote desktop sessions Any ideas? I know, it's a stretch. If you could even point me to the root of these errors maybe it will trigger some thoughts. Best Regards, J
August 8th, 2012 11:11am

http://www.techzonez.com/forums/showthread.php/9868-Remote-Desktop-Encryption-Error-FIXED check out post #14 may be a solutionJustin | http://patchmypc.net
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August 8th, 2012 11:27am

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