I cannot, for the life of me, get AT&T LTE to work reliably on the wAP. It works about 2% of the time - when it does, it's rock solid and fast until a reboot. I just updated to 6.42.3 and it seems worse (as in won't connect at all). When it does work, I never had to put an APN in. However, I've tried all the AT&T ones (broadband, phone, etc.).

Log just says:

lte1: setting network mode failed

SIM card seems OK - it has actually worked a couple times (some combination of reboots/power cycles). Please help!

please contact support@mikrotik.com and include a support output file from your router.
When the module connects successful does it connect to the 3G or LTE band?

I am getting same results. Will only connect on 3g. I am using “broadband “ under APN. Any fix for this?