Model : AC750 Wireless Dual Band 4G LTE Router
Archer MR200
Hardware Version : EU V1
Firmware Version : 160412
ISP : Vodafone Portugal
The improvement in the next firmware was able to fix band 4G, our choice 800 Mhz, 1800 Mhz, 2600 Mhz.
Or leave it in Auto ( It auto choose the band )
Like this example:
That's it, Tks