@A-K You will need to access to the web interface of the MR400, then go to Advanced>>Wireless to enable it. Below are the instructions: https://www.tp-link.com/support/faq/1650/

@Richelieu Hello, the two external antennas are 4G LTE antennas, they are different from the ordinary wireless antennas. These antennas are mainly used to receive 4G signals from your mobile ISP by...

@sobale Can you please verify if the hardware version of the MR400 is V3 or V4? You can find it on the bottom sticker. Where did you get this 1.16.0 0.9.1 v0001.0 Build 200414 Rel.62997n version?

@AkashDev Thanks for getting back. The tech team was made aware of your issue, they will likely reach out to you via email to continue to troubleshoot your issue.

@Goral I understand that. You may check with EE first, ensure the line is stable on their side, or you can connect their modem back and check the connection, if that is not stable as well, contact...

@flsflameboy1 You are most welcome, and it's glad to help you. Good day.