I have bought an Archer C50 V3 a few month ago, and installed OpenWRT on it. At installation I had to use the TFTP boostraping method, but it worked.
I never had good wifi performance (ie wifi disappears on a regular basis). I tried updating to the latest version 18.06.2 last week, and it successfully updated. But after updating (and I did it once more this morning to be sure), the FW version in Lucy shows :
OpenWrt 18.06.1 r7258-5eb055306f / LuCI openwrt-18.06 branch (git-18.228.31946-f64b152)
Is this a minor version reportingglitch with 18.06.2, or am I not updated to the latest version ?
Thank for your feedback.