@rkarn Hi, what is the hardware version of your MR400? and is it EU version? As you can see on TP-Link website, the MR400 V4.30 antennas are two external 4G LTE antennas, which are cellular antennas...

@user2095 Hi, please check Internet IPv4 address on Advanced->Status->Internet part of its web interface to see if it is a public IP address or not, if not, it means you are behind the ISP CGNAT,...

@marival83 Hi, if the 4G signal in the area is not stable and needs to fall back to 3G, you should use 4G preferred, otherwize, you could use 4G only. Regarding the 4G+ issue, it is related to the...

@Lapparty Hi, it can be either router or ISP base station issue, it is recommanded to test the same SIM card in other 4G device at same location to see if there is any similar issue. In addition,...

@CloudCatcher Hi, 1.1.7 is not the latest firmware, please download the latest firmware M7650(EU)_V1.1_1.1.11 Build 230303 from the official website below and update it by referring to the guide in...

@Adi-NZ Please try different wall sockets, and make sure they are still on the same electrical circuit after relocation. Try to reset it by holding pair button for 10s, then pair them again.