@Jene Hi, this screenshot doesn't include the real band the router is using, please click Advanced on the top, then you will see a Status page where you could find more 3G/4G related information.

@Marek303 Hi, what is the version of your Tether App? We will check again by using the same router and App.

@Jambon_Gris Hi, it is recommended to contact the retailer or local support team to see if they could provide part RMA or have spare rear cover.

@Funcorner Hi, upon checking, your current firmware is for Archer MR600(PLPLAY) 2.0, a customized firmware for ISP Play in Poland, that is why it cannot install common EU version firmware. It is...

@Ekkoh Hi, do you mean you've tried three Archer MR500 V1 with Tele2 SIM card, all of them have frequent LTE disconnecting issue every a few hours? You've already tried the beta firmware provided in...

@acerfly Hi, the changing between 4G and 4G+ is usually related to the base station as well, if the internet is stable now and speed is acceptable, please don't worry.