If WireGuard would run, I would buy 15 MT300N-V2 (Mango) and 4 AR750S-756 …
… only because of the WireGuard support. And some business partners would use the devices in their office.
If WireGuard does not work and if it is still beta and not stable 1.x then it’s, sorry to say that, a small toy. But with WireGuard stable working you could find thousands (1000s) of customers in Europe!
I have sold the Mango, it’s too slow. The AR750S-756 / Slate is quiet okay with OpenVPN ~12-14MBit/s … but if WireGuard won’t work I’ll sell it, too.
I really, really would love to see it working. It’s a great product.
I actually got a lot of feedback about speed. Most of the cases wireguard achieved a very good speed. In some cases it is still not and I am not clear of the reason.
Yes, I rebooted after changing mtu_fix. 2, 3, 4 times
But now I’m focusing at the following fact …
Same WireGuard Provider :
Mullvad and
An own WireGuardServer with 1000 MBit/s U/D)
Same Internet provider, same router
WireGuard on my smartphone / Android (= Linux) … FullSpeed: ~25 MBit/s
WireGuard on my AR750S-756 / Linux … FullSpeed: ~ 2 MBit/s
Both are linux-based, so the OS is “similar” …
My smartphone is rooted and I disabled IPv6 on it! = FullSpeed: ~25 MBit/s
My AR750S-756 has IPv6 enabled = FullSpeed: ~ 2 MBit/s
I tested both devices ( smartphone / AR750S-756 ) at the some uplink / router and this one hast “DS-Lite”, so it’s connecting through IPv6 and tunneling IPv4 ( if I understood correctly).
But if there is an IPv4-Only device, it works of course, because of that IPv6/IPv4 tunneling.
Fact: My smartphone is now an IPv4-Only device, because I disabled IPv6 on it.
Question / Suggestion : If I would config the AR750S-756 like my smartphone, then it should work with WireGuard perfectly.
But how / What to do?
Other possibility : I’m using WireGuard for Android v0.0.20181218 an there it works.
So maybe the reason for low speed is an old WireGuard version. I think I read about WireGuard Beta an the GL-INET firmware.
Not sure why, but will continue to investigate this issue. For my testing, only Mullvad is slow, AzireVPN is faster than Mullvad. The CPU of Android is more powerful than router, so the speed will faster than router, it is make sense.
But… in this case, the CPU is idle, while the speed is slow. It isn’t caused by CPU.