Unable to log in (regular or AdminCP)

[Sarteck]

I recently moved servers, and took the opportunity to set up my vB on a "forums.MYDOMAIN.com" subdomain.

I had some issues with it, where I was unable to log OUT for a few days, and it ended up being something about the cookie prefix.

Now my issue is that I cannot log in, either as a normal or or an Admin, to the regular forum or to the AdminCP.

I have tried:
- tools.php
- : Reset Cookie Domain
- : Reset Cookie Path
- : Updating the various caches

- config.php
- : changing the cookie prefix
- : Disabling hooks

- webserver
- redirecting all traffic on www.MYDOMAIN.com and MYDOMAIN.com to forums.MYDOMAIN.com.


What Happens:
When I try to login from the forum index, it simply reloads the forum index.
When I try to login from the AdminCP or ModCP, it loads "login.php?do=login," and tells me I have an invalid password. If I try to log in using the quick login bit at the top, it simply reloads the forum index, but if I try to login from the form on the page, it just adds a Strike to my IP.


I'm not quite sure what it is that I screwed up, here, and could use a hand. I'm running vB 4.1.11 (I know, I do have to update, and will later on) on NGINX. Obviously, I cannot log into the AdminCP to make changes to any settings.