I also often have a problem with "No OpenID Server found at https://steamcommunity.com/openid".
I have changed several providers. This does not solve the problem.
And I decided to figure out what could be the reason.
$ content from line 640 openid.php contains
"
HTTP/1.1 403 Forbidden Server: AkamaiGHost Mime-Version: 1.0 Content-Type: text/html Content-Length: 269 Expires: Sat, 28 Sep 2019 22:59:35 GMT Date: Sat, 28 Sep 2019 22:59:35 GMT Connection: close
Access Denied
You don't have permission to access "http://steamcommunity.com/openid" on this server.
Reference #18.6dbe7a5c.1569711575.fadc709
"
Steam just blocks my ip.
I turned to the provider with a request to change the ip of the site and this solved the problem. I did this 5 or 6 times and they no longer want to help me with this. The question is this. What should I do so that steam stops blocking my IP?