Sure, Here is the sequence of events
1 .CM 7 ( 3.5 ) => WiFi worked
2. ( Wipe Data/Factory, Cache Dalvik Reset )
3. Classic NERD Latest => WiFi worked very first time, not again after first sleep
4. Supreme Mod + ( Wipe Dalvik ) => No WiFi
5. ( Wipe Data/Factory, Cache Dalvik Reset )
6. Oat Ver A => No WiFi
7. ( Wipe Data/Factory, Cache Dalvik Reset )
8. Oat Ver B => No WiFi
It does not seem to work at all now. Scans and shows my WiFi network but does not connect, fails on Authentication Problem.
Well, the first thing I would suggest is cleaning your boot partition since you've been using CN. I believe they have a boot partition cleaner that can be flashed via CWM, but I don't know what state it returns your boot partition to. Then I suggest a complete set of wipes/formats under CWM including...
wipe data/factory reset
wipe cache partition
advanced>>Wipe Dalvik Cache
mounts and storage>>format /cache
mounts and storage>>format /data
mounts and storage>>format /system
Then repeat the above cycle of wipes and formats again for good measure.
Then try flashing Version B.
If you still have problems, try downloading blade wifi fixer from the market and run that.
Otherwise, the only other thing I can suggest is to start from scratch with ACMEUninstall then ACMEInstaller2 followed by your favorite rom. But please beware that CM9/CM9-based roms, and AOKP, and CN all put different stuff on your boot partition, a very critical and limited resource.