Default Are We All With 00:da:36:16:de:eb Mac Adress?

I notice alot of cellphones have the same wifi mac after being flashed with cyanogenmod, wich is a problem for me as i just bought 2 xt912 and started to have problems when trying to use wifi at home. I tried changing my mac adress by modifying the /system/etc/firmware/ti-conectyviti/wl1271-nvs.bin and wl1271-nvs-128x.bin with a hex editor and that seems to fix the problem, unfortunyli i did not keep the box so i dont know wich mac adress i had so i can spoof the mac adress with the original.
so, does anyone knows how to fix it?
im on a cdma verizon lates nightly cm-11-20140711-NIGHTLY-spyder.zip
Pardon my english and grammar, english its my second lenguage.