Many ”connection closed” errors during desktop sync with OCIS 3.0.0

We updated a test server from OCIS 2.0.0 to OCIS 3.0.0 and are getting a ton of “Connection closed” errors during both upload and download syncs on Windows Desktop Client Everything ran smoothly without issues using the same server and client under OCIS 2.0.0. Left running for long enough, the files all sync in the end, but it could be 10+ minutes for the Desktop Client to retry everything enough times to get the files up or down cleanly.

Screenshot 2023-06-15 at 14.03.52

In OC10, reconfiguring the MPM seemed to fix this issue: Many "operation canceled"/"connection closed" errors during sync. But with OCIS being a totally different technology this doesn’t seem to apply here.

Any ideas on how to troubleshoot and solve this issue?

I moved to “Infinite Scale“ category


Looks like this came about trying to upgrade an existing OCIS 2.0.0 to 3.0.0. We did a from-scratch install of the latter on a clean machine and it doesn’t produce the errors.

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