@Manuele Hello, with SIM card inserted into your cellphone, can you see the messages? Please show us a screenshot of the inbox page after you logged into the web UI. Have you ever tried to reset the...

@Gary1963 If you want to change the external antenna to boost signal, it is suggested to change the 2 Detachable 4G LTE Antennas together. Besides, you can adjust the location and the antenna...

@Seg1023 Hi, the TL-WR940N is a single band, which supports 2.4GHz only.

@PeterJ To enable bandwidth control for guest network, you need go to Bandwidth control page to enable it and enter the Egress/Ingress bandwidth. Note: You can enter the actual bandwidth you paid for...

@shipon Yep, it seems that the local official website does not upload the firmware, but the current one is the latest one already. https://www.tp-link.com/en/support/download/tl-wr841hp/v3/#Firmware

@akumar Do you mean that the router will get it powered off automatically? Please ensure that it is the original power adapter. And have you ever tried to hard reset it by holding the reset button...