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| MF_E_NET_INTERNAL_SERVER_ERROR | MF_E_NET_NOCONNECTION |
MF_E_NET_SESSION_NOT_FOUND
MF_E_NET_SESSION_NOT_FOUND means the server cannot find the streaming session referenced by the client. The session may have expired, been removed after reconnect, or been routed to a different backend node.
What to check
- Reconnect and obtain a new session instead of reusing stale control state.
- Check load-balancer affinity when a multi-node media service owns session state.
- Inspect server timeout and session-cleanup events around the failure.
Microsoft: Media Foundation client logging
Microsoft: Implementing reverse proxy with Windows Media Services
Microsoft: Networking in Media Foundation
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