I bought this router because it advertised Wireguard support. I was able to connect once or twice, but never beyond getting a basic connection appearing in the admin page. I was hoping to access my network but altering the allowed ip's didn't seem to help. I have a very simple network. I run DNS off of a pihole, the tp-link router handles everything else. I turn on the wireguard feature following your documentation. The connection appears successful once or twice then fails consistentaly after that. I will try to change allowed ip's and there is no luck getting a handshake to happen. 

I reverted to this older firmware after running the newest firmware with no luck. Again, I was able to make a single connection and then it failed continually. Would very much be happy to switch to something that actually works. I was also incredibly annoyed to find that you have two different products, maybe more, that use the AX5400 title, so I was quite misled by Amazon store about thinking this would work for Wireguard. I would have saved myself a lot of time by buying a different product from a different vendor or setting up my own WG solution from the get go instead of hoping for a plug and play experience.