My only guess is your return traffic is being blocked/filtered on the way back somehow;
or there is a problem after the node 198.27.73.218

the discord reply does make sense.  Hopefully it irons out.

Are you using a VPN service?  I know some botnets have been getting banned, so if they are using a public VPN or gateway;  could be banned from that type of things.  Can't say for certain at all about that though.  This line is pure guesswork.

the first photo looks appropriate;  for a lack of connection to the pool.

The second photo is common when the pool is processing payouts, DB maintenance, etc....   Give it a few minutes and it usually responds fine after.  I assume it loaded for you in the past.

third photo:  don't ping the port, just ping the URL.

Also do a traceroute on it.  It will provide more information on the problem.  If you are not able to see it;  your DNS may have it blocked or filtered.   a traceroute should answer some questions.

Are you using a VPN service?  I know some botnets have been getting banned, so if they are using a public VPN or gateway;  could be banned from that type of things.  Can't say for certain at all about that though.  This line is pure guesswork.

Also do a traceroute on it.  It will provide more information on the problem.  If you are not able to see it;  your DNS may have it blocked or filtered.   a traceroute should answer some questions.