In both cases the VPN client would get disconnected at various points during the upload/download of the file copy. In my test case I was trying to copy a 10MB file to and from the remote desktop PC. The problem occurs when any larger IPSec traffic occurs. The user can open mapped folders, ping or access the router as if local, remote desktop to the file sharing PC and work on it remotely. The Shrew VPN client software will connect to the Netvanta 3120 with no issues and seems to work normally. This post may help others with smaller Adtran routers as it is directly related to the "horse power" of the router.īefore giving the solution, this is exactly what occurs. Seeing as nobody has replied and Shrew Soft support is useless, I have dug into this issue since it started over 1 week ago and found the solution.
Please let me know what could be causing this issue. My clients are getting disconnected in similar fashion. If I enter the VPN password in the Shrew client, it will reconnect and the RDP session reconnects right away, but the file transfer is obviously halted. Once the paste reaches between 60 and 80% the VPN disconnects and my RDP session is obviously terminated. In this case as a test I wanted to copy/paste the router firmware file which is 10 to 15MB in size. The issue is when I copy over a file to the remote PC. I can RDP into a file sharing PC with no issues and perform updates, use the browser to download files, uninstall software from the Control Panel, etc. The VPN tunnel will come up as expected and the connection is established. The VPN client is Shrew Soft version 2.2.2 and 2.1.7 running on both Windows 7 and Windows 8.1 computers.
I have some clients running firmware R10-9-5-E that have VPN client disconnect issues that I can't figure out.
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