Strange WEP Key Problem

[kp4c]

So I've come up with what I think is an interesting (and extremely frustrating) scenario:

I have the internet at my house setup as a basic WEP key. I can connect to it on my Nook on autonooted stock (Eclair), but on every other ROM that I've tried, I can't connect. This includes: Nookie Froyo (SD), Phiremod v4 (and v4.1), CM7 Nightly 19, and the recent HC build (SD).

To complicate things further, I can connect to my neighbors' un-secure network just fine on all of these builds.

Any help? I don't think it's my router since I can connect to it before changing ROMs.

Thanks

ALSO: I've tried pushing files from working Froyo ROMs; an idea I saw on XDA. Still no luck...