MAC Address Unavailable

I can't use WIFI all of a sudden. I'm using CM 13.1. I didn't find any serious bugs at first. MAC Address is 02:00:00:00:00:00. I tried rebooting, clear cache, and even reflashing the rom. I tried reverting back to stock rom but still didn't fix the problem. Now, the MAC Address is Unavailable. I tried the solutions i found on google but it didn't fix the problem. I'm trying my luck here if there's anyone faced this problem and fixed it. Thanks.

from xda-developers http://ift.tt/24jLRMy
via IFTTT