Unable to download content in VCS, VIP online with DMP offline; MTU is too large
Potential Symptoms
- VIP online with DMP offline.
- DMP logs are showing certificate errors.
- <---2018-12-21 12:58:01Z [FusionClientModule] [Error] Failed to find any endpoints for the server at https://venus.daktronics.com/discovery-proxy/
2018-12-21 13:08:02Z [FusionClientModule] [Error] Found SecurityNegotiationException. Clearing CRL file from /root/.dotnet/corefx/cryptography/crls/2018-12-21 13:08:02Z [FusionClientModule] [Warning] Deleted 0 crl - ---> (Inner Exception #0) System.ServiceModel.Security.SecurityNegotiationException: Could not establish trust relationship for the SSL/TLS secure channel with authority 'venus.daktronics.com'. ---> System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.Http.CurlException: Peer certificate cannot be authenticated with given CA certificates
- <---2018-12-21 12:58:01Z [FusionClientModule] [Error] Failed to find any endpoints for the server at https://venus.daktronics.com/discovery-proxy/
- Able to ping the DMP from the VIP.
- USB0 missing from network tile in VIP UI.
- Download arrow stuck on VCS dashboard.
- Unable to ping fusion.daktronics.com from the VIP: "Frag needed and DF set (mtu = 1428)" issues
Environment
- Product: GT6, GS6
- Component: DMP-50XX
- Control System: Venus Control Suite (VCS)
Cause
- DMP is unable to download a new certificate after it expired due to MTU (Maximum Transmission Unit) size is too large.
Resolution
- Lower the MTU size to 1428 in the VIP and wait for the DMP to come online in VCS
- This should be the new MTU for the location going forward.
KB ID: 000018462
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