Here is the packaging, it says that it supports Unifi & Maxis Fiber but the support is not out of the box. You need to ask the seller a beta firmware which has VLAN support but I couldn't get mine working using even the beta firmware on my Maxis Fiber. Emailed TP-Link support but got a reply saying that they don't have Unifi/Maxis Fiber ready firmware and asked if I want to swap with one that already have, but nah, I bought the router not for running the stock firmware anyway.
Ver 2.0 hardware as per the sticker.
$ make image PROFILE=ARCHERC7V2 PACKAGES="ath10k luci"
5. Go and flash the firmware, do remember, the default IP address for OpenWrt router is 192.168.1.1.
To get Maxis Fiber to run, just go to network->vlan and have the following, surely don't forget to set the PPPOE userid and password:
That should be it.