Sync with CBL 2.5.3 failed with timeouts

Hello,

We use Couchbase solutions in Windows environment :

  • front Office in CouchBase Lite 2.1.2 with .NET framework 4.6.1 under Windows 10.
  • sync Gateway 7.0
  • CouchBase server 6.0

every client with front Office works. The replication between front et Gateway works.

But we have a problem when we upgrade the front in CBL 2.5.3. The Gateway et server don’t change.

The replication failed with some clients with this errors and warnings

---- CouchbaseLite/2.5.3 (.NET; Microsoft Windows 10.0.18363 ) Build/10 LiteCore/2.5.3 (8) Commit/2ff7187 ----

16:11:52.475773| [WS] ERROR: {C4SocketImpl#661} No response received after 15 sec – disconnecting

16:11:52.478904| [Sync] ERROR: {Repl#659} Got LiteCore error: Network error 3 “connection timed out”

16:14:44.951286| [WS] WARNING: {C4SocketImpl#759} Unexpected or unclean socket disconnect! (reason=Network error, code=3)
16:14:44.983356| [Sync] WARNING: (WindowsProxy) [108] Call to WinHttpGetProxyForUrl failed (possible direct connection)…
16:14:47.456662| [Sync] WARNING: (WebSocketWrapper) [4] Timed out waiting for _writeQueue to finish, forcing Dispose…

Can you give us some clues to solve the problem ?

Best regards
Saïd