@Rolobot https://www.tp-link.com/en/support/download/archer-mr600/ V3 It is on the box and back of the device

@mattiuser

It is a common issue Plus is only stay for long if you use heavy internet traffic but it should be fixed by a new firmware

It could be that phones or windows pc have an update

@kernash Thank you I hope TPlink could find a solution for this issue

Hello This is part of my daily log: 18 2023-06-10 10:36:03 4G Information USER: Network type is LTE. 19 2023-06-10 10:36:02 4G Information USER: Network type is LTE PLUS. 20 2023-06-10 10:35:54 4G...