Sorry for the delayed response. I do see that a Autotune request was made successfully on November 3rd from www.tin.......nets.com. So your server has been able to connect to ours.
There was only one request though. That is enough to get configuration information, but I don't have any failure connections. That could mean that none have been attempted (unlikely since your posting) or that the requests failed. If they failed, that is likely a firewall or other block of the server on your end. Unfortunately, we've moved to a cloud infrastructure over the last few years, so we don't have a fixed IP address I can give you. It changes pretty regularly.
So... some questions:
* Do you know of any security tools or firewalls on your system that may be blocking outgoing requests?
* Do you know why the request above may have gone through when others didn't?
* Did you switch servers or domains at some point between 11/3 and now?
Any answers will help narrow things down.
Thanks,
Alex