Ubiquiti is good, but I would recommend the Ubiquiti UAP-AC-Pro, and it needs to be wired directly connected to the router.
Yes, you can manually tag it yourself, either on the router, or get a smart switch that can support VLAN tagging.
Tenda AC18 is okay for use.

Yes. It is okay.

Yes. It is okay.

wtf i just setup my new asus rt86u then just now check got so many attacks

Asus router firmware is global so there's no worry about it. Other brands separated by region so you might have trouble getting them to work here.

I had a friend who bought a six antenna tplink WDR7400
from taobao which was only released for the China market and asked me to configure it to replace his crappy trashcan unifi router at his house.

Turns out the this router's  firmware had no option to change the native Chinese language web interface so by translating whole pages of the UI using Google translate I found no support for vlan tagging which made this router unusable for unified.

My friend was lured by the six antennas and fast wifi specs coupled with a sub rm200.00 price tag.

So make sure that you check the specs carefully before you pull the trigger on these Chinese market routers.

Im turboed yesterday. Managed to test both wifi and lan, only reached 300mbps out of 500 mbps.

Asus 86u with tmobile  "asus 68u"

Cable checked from router shown connected link state is 1gbps. Unless cable non branded quality issue for not touching 500mbps?

All ISP in Malaysia requires vlan id except Time fibre.

Yes, internet access with 500 and hypptv with 600.
I just afraid got bill shock, so I mentioned will screenshot and keep the conversation.

He got offended and defensive tho.   

Direct taobao seller with direct shipping. I follow the forumer guide at the other thread on how to purchase. Using chrome to translate the webpage. Create account and credit card link using browser and purchase use taobao apps.