See lots of "protocol error" entries from syncthing in journalctl (linux)

syncthing appears to be running fine and the UI shows no issues. However I notice journalctl on my arch linux box has lots of “protocol error” entries coming from syncthing such as

Jul 19 12:03:53 dp syncthing[477]: [JC6TU] INFO: Got peer certificate list of length 0 != 1 from peer at 192.168.2.131:22000-50.116.7.184:59014/tcp-server/TLS1.2-TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384; protocol error
Jul 19 14:47:51 dp syncthing[477]: [JC6TU] INFO: Got peer certificate list of length 0 != 1 from peer at 192.168.2.131:22000-66.228.47.66:44990/tcp-server/TLS1.3-TLS_AES_128_GCM_SHA256; protocol error

From the forum I saw a bug back in v1.4 with such errors and that the issue may continue until files get updated. Is this anything to be concerned about and any way to resolve? Thanks in advance.

I’m running v.1.7.0 on all nodes (3 nodes) and all are on Arch linux with 5.7 kernel. Happy to send logs if needed.

Looks like port scans

Thanks for the quick reply. That sounds logical.

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