Some customers encounter this technical issue when trying to sign a document or recreating Vault connection.
These type of error messages are not related to a problem on the M-Files Server, rather they are caused by internet connection issue.

Error when trying to recreate a Vault connection.

If you see this kind of connectivity issue, please try to use an alternative internet connection like your mobile phone.
For further assistance, please reach out to support@simplerqms.com.