@Flamingtorch Good day. You could have a check of the internet IP address on the router; If there is also a private IP address on your MR600, the quickest way is to contact the sim card carrier to...

@Lee46 Good day, You are right. ExpressVPN or NordVPN requested that the router itself could be configured as an OpenVPN client. But for the Archer MR600, it could only work as the OpenVPN server. So...

@JPKR Good day. I think it might be because the internet IP on the router is a private IP address, not a public one, which means there would be an additional firewall on the sim care carrier side...

@Vipul07 Good day. Thank you very much for sharing. Currently, the following model supported manually choosing band: MR200(EU) V3/V4, MR400(EU) V2/V3, MR6400(EU) V3/V4...

@roysamren Good day. Thank you very much for your time and patience. Could you please send email with the above details so that we could forward your case to our senior engineers. Thank you very much.

@foodmonster Good day. The previous firmware is to fix the issue that Sim Card is not Found after Firmware Update. Since the sim card is detected properly so that there is no need for the old...