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OCS 2007 Video Freezing

We are using OCS 2007 Standard and we are experiencing video freezing issues for remote users.  Our remote users have a device established VPN between the site and the OCS A/V server, no port filtering is in place between this connection.

After establishing a video session the video works for about 1-2 minutes.  After that the video freezes and the only way we are able to un-freeze the video is to cancel the session and restart video.

We are using Logitech Orbit webcams.  Any video session on the LAN works fine with these webcams.

What can I do to troubleshooting this issue?
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Wildchubby91
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Wildchubby91
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1 Solution
 
gaanthonyCommented:
Is the port range on the VPN limited as the client is going to use dynamic ports in the range of 1024-65535.  
How are the VPN clients connected (wireless or hardwired)?  Change the NIC binding order to have the hardwired connection listed first in the binding order.  
You can enable Communicator logging on the VPN client and enable OCS Debug Logging at the Pool and check AVMCU all Level, All Flags and look at the AVMCU log for warnings/errors that may be related and at the Communicator uucp client log.
Things to keep in mind is that Communicator to Communicator calls are peer to peer and do not involve the AVMCU on the server.  Only multiparty calls (3 or more clients) involve the AVMCU using AV.
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gaanthonyCommented:
You should also disable TCPChimney on the OCS Server (KB 948496) NIC and break NIC teaming if in use.
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