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I am troubleshooting an SSL remote access VPN which works with TDS but not with Comcast business network.

The client log contains this error message repeatedly:connect to [AF_INET]x.x.x.x:443 failed, will try again in 5 seconds: The system tried to join a drive to a directory on a joined drive.  Comcast is not helpful, anybody else overcome this symptom. Thanks in advance for your assistance.



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  • I gave up on it for now. If I put the wan interface in the same IP subnet as the SSL client it works flawlessly. If I bring the firewall to another carrier network, the SSL VPN works flawlessly. On the Comcast network, not at all. I am convinced that the problem is associated with the Comcast network routing the VPN packets to a black hole somewhere.
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  • I gave up on it for now. If I put the wan interface in the same IP subnet as the SSL client it works flawlessly. If I bring the firewall to another carrier network, the SSL VPN works flawlessly. On the Comcast network, not at all. I am convinced that the problem is associated with the Comcast network routing the VPN packets to a black hole somewhere.
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