Remote wiki is current on PHP 7.2.9. Local wiki was Detritus on PHP 5.?; since updating to PHP 5.6 I am seeing this error:
Failed to talk to remote wiki. Make sure the remote wiki allows XMLRPC requests and that you set up the endpoint URL correctly. transport error - Could not connect to ssl://xxx.xxx.xxx.xxx:443 (0)
Local wiki was able to sync until I updated PHP: this was a troubleshooting step as what I was actually trying to do was get a new up-to-date install on another machine (PHP 7.1.33) working.
If I visit the https://xxx.xxx.xxx.xxx/lib/exe/xmlrpc.php
file I see "XML-RPC server accepts POST requests only.", which is as it was on the working system before upgrading.
Does this plugin no longer work after PHP 5.6 (required for up-to-date wiki), or have I missed something really stupid?
I tried username:password@address variation too. Also connection over LAN.