1. We did not change server host, its the same host, nothing has changed in our networking department, you may be getting confused with the new test server, which is at test.piratemc.com (No longer up as im moving it to yet another dedicated server)

We have no control over your DNS settings, are you sure you don’t mean IP address?

There could be a few factors based on your PC settings at play here, 1 you got a virus/trojan/malware that is changing your DNS settings to record all your internet/key-log. review anything you have installed recently.

2. you are using an IP changer/VPN/Proxy which has changed your DNS resulting in an IP change.

I suggest you also look at your DNS settings on your computer, to see what they are set at, if there is anything set, make sure to note it down for reference/research first, and then remove it or replace it with Googles DNS https://developers.google.com/speed/public-dns/

Any of the above could cause conflicts, but since I don’t know what you have been doing recently theres no way to diagnose it! (that I know of) you could also do a traceroute to see how you are connecting to certain servers/websites, this shows your full route your router is taking to get to that server.

We use a thing called an SRV record to hide our odd port used to connect to our server as we dont have the default port (yet) you can try, I highly suggest you fix whatever underlying issue you have using our direct IP/Port 37.59.200.65:25877, again this isn’t the best method as you will not be able to connect when we change servers and you will still have your underlying issue.

I had this issue a while ago; I had to preform a full system restore on my computer.