@0xCrypt
I followed also the instructions here to compile my own Openwrt for Wa730re 2, but it's not an option there...
So either in direct compiling or image creator I can't get an working wireguard image for my wa730re v2.
Is there a trick to compile with correct HWID : 07300002 and platform?
I think it's all Ar71xx and Ar9331—AL1A like with Wr740 v4.
The only working version is 15.05 from the Openwrt-wiki that I mentioned before.