I am using the Certify application on Windows server 2016 to manage my certificates and have been renewing successfully for over a year with this
Recently I have found the application cannot communicate with the Lets Encrypt servers and gets the error “A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 220.127.116.11:443”
I have tried pinging 18.104.22.168 from my server and connecting to https://22.214.171.124 from a browser and both timeout.
I can access 126.96.36.199 from my office with no problems.
If my server IP has been blocked, how do I find out why and how do i resolve it?
I have put a ticket in with my hosting company to see if it is with their network, but my second server with them does not have this problem.
My server IP is 188.8.131.52