@Goncalofarinha Does it restart every time when you run speedtest on the phone? Or does this actually happen occasionally? Is the LAN connection still working on the AX50 when the wifi disconnects on...

@Ben78 I see. Neither DHCP option 60 nor 61 is supported by the Archer AX50. While we do find some other customers from the United Kingdom require this feature, we only have the DSL modem routers...

@John_Titor Who is your ISP, and what is the WAN connection type on the C20? Is there still a WAN IP address, default gateway, and DNS servers when the internet LED changes to be red? When you click...

@Jools72 What's the device that connects to port 2? Does it use a static IP address? Try to change it to obtain an IP address automatically from the router, then confirm. BTW, how about the LEDs...

@suththicit8 Hello, please check the PM, then confirm if the issue is resolved, thanks.

@jhasp-pune Glad to hear that you got the issue resolved by changing the MTU from 1500 to 1400. The firmware you can see on the official website would be the latest we can provide.