The interface is connected, but the internet can't be accessed for GL AXT-1800

Technical Support for Routers
1

I am currently use Glinet AXT-1800 as a repeater mode, and its firmware v4.6.4. It keeps saying "The interface is connected, but the internet can't be accessed". While it repeats my network, which has internet, my Glinet router cannot access to the internet. I have tried to reboot the router several times and I did not use any services, except VPN. I am okay with the router offline from time to time, this is simply unusable. It was fine previously. I don't know what's happened!

What can I do? What is the most stable firmware?

2

Just to confirm that the firmware 4.6.8 doesn't help the problem either.

3

What DNS server do you use on your 1800?

4

Factory reset the router from Luci and see if you can access internet with out VPN, no Wireguard, no adguard.

Try a different lan cable as well for your pc and for your modem.