@Wolfgangk Hi, Archer MR600 only supports 3/4G mode and wireless router mode. Did you set it as wireless router mode to extend your friend's WIFI? Please make sure your device is connect to the MR600...

@ilias1981 Hi, If it works in mobile WAN mode, the WAN/LAN port should work as the LAN port and be able to connect end device. You can try to reboot the device and also test with different Ethernet...

@Jimmydix Hi, Thanks for posting on TP-Link Community. Archer NX200 can combine 5G and 4G. It may work to combine 5G (N28) + 4G (B1, B3 and B20) but it does not allow to control it manually. It also...

@DidierGbx Hi, Is the router working in 3G/4G Router Mode? If there are other wired devices connect to the router as well, please unplug them and only keep the switch connected. Please test with...

@Gerges Hi, Thanks for posting on TP-Link Community. Will it happen to all wired and wireless devices? Please change the DNS settings to Google DNS. And you can also ping Google DNS when the issue...

@Udhaya Hi, Do you meet any issue with this new firmware? XC220-G3v is an ISP customized model and they are responsible for the firmware update. If you have any issue with new firmware, you can also...