Wireless Joint

Hi Everyone - Hoping to bother you all for a little help. Got all my hardware yesterday and really need to get it up and working for work.

I've gone through all the threads and tutorials. Here's an outline of current state and the things I've tried.

Info
---
Carrier AT&T, in area with very strong signal
Plan: One of the 'unlimited hotspot' plans (AKA ipad plan)
Antenna: 4x4 MIMO, utilized existing wifi antenna ports.
Timezone set and clock synced
APN set to 'broadband' for att

Problem
-------
I can issue AT commands to the modem.
Connection log show's "Attempting to Connect to Modem #1", but never connects
I can see my SIM info in Network Status, however SIM Phone number and SIM name are blank
Signal information and Cell information is totally blank
I do see my EM20-G under the General Information on ttyUSB2. Provider says "Failed to Connect - retrying"

Tried
----
Reset modem to OEM defaults
Tried different (brand new) sim card
Check modem and WiFix is latest version firmware
Reseated m.2 card and modem
Tried a different known working ATT post paid sim card...same results in log

AT Results
---------
AT+CPIN?
+CPIN: READY
OK

AT+CNUM
OK

QCFG: "usbnet", 2

Sample of Log
------------

Thu Jul 16 09:38:20 2020 user.notice MBIM Connect: Register with network
Thu Jul 16 09:38:20 2020 user.notice MBIM Connect: Subscriber registration failed
Thu Jul 16 09:38:20 2020 user.notice root: mbim bringup failed, retry in 15s
Thu Jul 16 09:38:35 2020 user.notice MBIM Connect: Stopping network
Thu Jul 16 09:38:36 2020 daemon.notice netifd: wan1 (7008): Command failed: Permission denied
Thu Jul 16 09:38:36 2020 daemon.notice netifd: Interface 'wan1' is now down
Thu Jul 16 09:38:36 2020 daemon.notice netifd: Interface 'wan1' is setting up now
Thu Jul 16 09:38:36 2020 user.notice URL-DEBUG: hotplug (iface): action='ifup-failed' interface='wan1'
Thu Jul 16 09:38:36 2020 user.notice MBIM Connect: Query radio state
Thu Jul 16 09:38:36 2020 user.notice MBIM Connect: Reading capabilities
Thu Jul 16 09:38:36 2020 user.notice MBIM Connect: Check PIN state
Thu Jul 16 09:38:36 2020 daemon.notice netifd: wan1 (7018): required pin: 3 - pin2
Thu Jul 16 09:38:36 2020 daemon.notice netifd: wan1 (7018): remaining attempts: 3
Thu Jul 16 09:38:36 2020 user.notice MBIM Connect: PIN unlocked
Thu Jul 16 09:38:36 2020 user.notice MBIM Connect: Checking subscriber
Thu Jul 16 09:38:36 2020 daemon.notice netifd: wan1 (7018): uci: Entry not found
Thu Jul 16 09:38:36 2020 daemon.notice netifd: wan1 (7018): uci: Entry not found
Thu Jul 16 09:38:36 2020 daemon.notice netifd: wan1 (7018): uci: Entry not found
Thu Jul 16 09:38:36 2020 daemon.notice netifd: wan1 (7018): uci: Entry not found
Thu Jul 16 09:38:36 2020 daemon.notice netifd: wan1 (7018): uci: Entry not found
Thu Jul 16 09:38:36 2020 daemon.notice netifd: wan1 (7018): uci: Entry not found
Thu Jul 16 09:38:36 2020 daemon.notice netifd: wan1 (7018): uci: Entry not found
Thu Jul 16 09:38:36 2020 daemon.notice netifd: wan1 (7018): uci: Entry not found
Thu Jul 16 09:38:36 2020 user.notice Get Profile: Default Profile Used
Thu Jul 16 09:38:36 2020 daemon.notice netifd: wan1 (7018): uci: Entry not found
Thu Jul 16 09:38:36 2020 daemon.notice netifd: wan1 (7018): uci: Entry not found
Thu Jul 16 09:38:36 2020 daemon.notice netifd: wan1 (7018): uci: Entry not found
Thu Jul 16 09:38:36 2020 user.notice MBIM Connect: Register with network
Thu Jul 16 09:38:36 2020 user.notice MBIM Connect: Subscriber registration failed
Thu Jul 16 09:38:37 2020 user.notice root: mbim bringup failed, retry in 15s

Shout out to NetSolution on facebook who has been trying to help me work through this as well!

If you have it shipped to me, I will have a look and fix it (no charge, no expectations of any favors) unless the issue is with the account.

Can you insert the SIM into a phone that can get on ATT and get a working LTE connection?

LoveMeSomeCALTE wrote: ↑Thu Jul 16, 2020 3:57 pm If you have it shipped to me, I will have a look and fix it (no charge, no expectations of any favors) unless the issue is with the account.

Can you insert the SIM into a phone that can get on ATT and get a working LTE connection?

Yup, tested sim in my s20 -- works just fine.

Appreciate the offer, I'll give it a couple days here to see what we can figure out and it's great to know that worst case scenario I have a plan x...or z. Rural living certainly has it's advantages and disadvantages.

I just went through this exact scenario and I don't see you mention TTL at 65. In my case things weren't working, I reset everything and then went through and quickly changed TTL, APN and timezone and then power cycled the router and it worked.