Also, did you try to log in using that fix that runs in the background. I have two computers, one always connect 100% another (both Ethernet connected to the router) have hard time connecting. Sometimes I needed to re-try 10-15-20+ times. Although I don't get error like you, just empty server list, it still has something to do with DNS and cash etc, so it is worth trying out. I'm not at home, can't check program name, but it was posted as potential login problem solution on these forums, so search for 'fix' or 'login fix' or someone may have link handy.
If someone post link to it, make sure you read instructions, you will need to edit one file, i think it is eqclient.ini per memory
Edit, found it and I forgot, it is for Linux OS, ignore if you are using windows:
https://www.project1999.com/forums/s...5&postcount=10
https://github.com/Zaela/p99-login-middlemand