Need compatible EVDO modem for TP Link MR3020 router

Hi,

I have a BSNL EVDO connection but my modem ZTE AC2746 is not connecting with the Wi-Fi router TP Link MR3020 even though it's supposed to be compatible. I have also seen plenty of examples on the internet where a certain modem is not working even though its on the compatibility list.

So, please suggest me a EVDO modem that is guaranteed to work with this particular Wi-Fi router

Thanks