Getting an “unexpected response” from the Nexus login server can be disappointing. It becomes more annoying when the issue keeps persisting.
We believe you want to solve this issue once and for all. Read on to find out the working solutions that our resident gamers have shared in this guide.
Check Nexus Updates for Database Problems
This error message appears when you type in your login information. In most cases, this could be a database problem. The only way to find out is to check the Nexus social media channels and their official website for updates regarding database problems.

If they have database issues, you will need to wait until their team resolves the problem. However, if there are no updates regarding this, cross-check to be sure you are entering the correct login details. If the error persists, you will need to apply.
Try Again After a Few Hours
If the error persists after trying the first fix, the best thing to do is to wait for a few hours. The Nexus server may be undergoing maintenance, or some unavoidable issues have come up, and their team is trying to resolve the problem.
Usually, scheduled maintenance will take around 1-2 hours. However, in some peculiar cases, it might exceed this time.

Note that if the error remains after waiting for several hours, we advise you to reach out to the Nexus team. There are possibilities that they might have banned your account. Reach out to them to ensure all is well and to be updated on the circumstances behind the error.
Conclusion
Database problems [1] are the major reason you may get an unexpected response from the Nexus login server.
In this situation, the best thing to do is to check the official Nexus website for an update on the problem. You can also reach out to their support to understand the nature of the problem.