@freeurheel Please check the compatibility list and ensure that your 4G modem is included. https://www.tp-link.com/support/download/tl-mr3020/#Compatibility Theoretically, the 4G modem is plug and...

@Sandr The ETA is unsure yet; have you ever installed the beta firmware to solve this SMS issue? Does it work?

@Sandr It is designed so and it is necessary. With the router keeps running online, the burden on the router will be heavier gradually; Reboot is a refresh/renew method which we use to ensure the...

@Korkiat Hello, may I know did you use the web UI of the tpMiFi app to check the SMS inbox? Have you ever tried to change another SIM card to give it a go? You can also hard reset the router and then...

@Deutsch Thanks for your reply. Recently we released a new firmware which I have updated on my original post. You can install it and give it a shot. If it still does not work, please feel free to...

@bnogal Please show us a screenshot of the current firmware version of the powerline adapter. You can try to reinstall the tpPLC utility to give it a go, if possible, you can change another computer...