Upgrade StorageWebDAV Issue: Peer reports incompatible or unsupported protocol version.
I'm having trouble connecting to my WebDAV server for file sync. This was initially working properly, but recently my files stopped syncing and server verification fails, despite no known configuration changes on either my server or client side.
The error I get when attempting to verify the server is:
Peer reports incompatible or unsupported protocol version. Error code: SSL_ERROR_PROTOCOL_VERSION_ALERT
The server uses a certificate from Let's Encrypt, and seems to pass the test suggested on the incomplete_cert_chain issue page (although I could be missing something):
https://www.ssllabs.com/ssltest/analyze.html?d=webdav.willsides.me&hideResults=on
Here's the debug ID for an attempt to verify the server:
D1288250116
It's bothering me because it used to work - meaning the server was set up correctly. The certificates aren't expired, and I haven't made any configuration changes. Can anybody offer advice what to check?
The error I get when attempting to verify the server is:
Peer reports incompatible or unsupported protocol version. Error code: SSL_ERROR_PROTOCOL_VERSION_ALERT
The server uses a certificate from Let's Encrypt, and seems to pass the test suggested on the incomplete_cert_chain issue page (although I could be missing something):
https://www.ssllabs.com/ssltest/analyze.html?d=webdav.willsides.me&hideResults=on
Here's the debug ID for an attempt to verify the server:
D1288250116
It's bothering me because it used to work - meaning the server was set up correctly. The certificates aren't expired, and I haven't made any configuration changes. Can anybody offer advice what to check?
In case anyone finds this in the future who happens to be running their webDAV server on Synology DSM like myself, it's simple to enable TLS 1.2: Control Panel -> Security -> Advanced -> TLS/SSL Profile to "Intermediate Compatibility".
Apparently the update to DSM 7.0 removed TLS 1.2 from the "Modern Compatibility" profile