For any other new players trying to play with friends in the same household you need to go to the Petition/Exploit portion of the Forums and post a request for an IP exemption. From what I have read they tend to do the exemptions in batches and I am not quite sure how long it will take, some have gotten them in under 5 days, some say it took a month (I hope that isn't the case).
The forum is at:
https://www.project1999.com/forums/f...splay.php?f=25
The format for making the post is this:
IP Exemption: This is for requesting to be exempt from the limit of 1 connection per IP Address. You may request exemption if you have more than 1 real person playing from the same IP. When posting for this, please include the account names of every person that will be playing from the same IP, as well as the identities (real first names) / relations to those players, and please make sure that at least one character has been created under each account. Please verify the spelling of each account you specify. This format works best: Real first name - Relationship - Loginserver Account Name
If you fail to provide us the format we have requested it will delay your request.
If you have requested an IP Exemption in the past please provide those accounts too.
This will fix the "Temporary IP ban" error.