I have a em20g modem im using. But It’s towers across the street from me but it’s not wanting to band lock to band 66. And when i do try and band lock, it’ll disconnect the modem and wouldnt reconnect. I would have to restart the router just to get it working again but it doesn’t save my band lock. Im trying to band lock band 2, band 12, and band 66. Im on T-mobile (through mobilecitizen). But for some weird reason it’ll lock to 2, 12 and 17 and Tmobile don’t support band 17. And also just in case, would I have to update my modem?