We have been using AT&T sims for a while (over a year) though lately "SOME" of the wapRs does not REGISTER to AT&T when modem attempts to connect.
Tried "BEC" brand device with sims(yes 3 different ones with 3 different IPv4's) that would not REGISTER to AT&T and they all register on BEC device but not on Tik WAPR (Rile-LTE-US)
Tried some older firmwares/ROS's nothing seems to be consistent. The sim either Registers on AT&T or it doesn't when in the WAPR.
Registers EVERYTIME on BEC device so SIMs are all good.
Thought IMEI tied to IP might be a problem when AT&T issues IP that's what led to several SIMS being tried. Still once a sim is DENIED on AT&T when inserted into the WAPR it does not seem to want to REGISTER ever. Though this other brand "BEC" it boots right up and REGISTERS within 2-3 minutes of boot up. (everytime)
The strange thing is that the WAPR's are not ALL having trouble, only some. I thought I had it solved with 6.40.9 ROS but not yet Again the APN number is set correctly for AT&T for the modem to use.
WapR's are being setup as PASS-THROUGH to provide wireless backup so the IP needs to be received through the device on the edge(CPE device) In most cases an IAD(Adrtran).
I have taken the IAD out of the mix and hooked up a 2011 to the LTE direct and allowed it to dhcp-client via LTE. You can see the modem hit the AT&T nettwork attempt to connect (SEARCHING)
Then after a few minutes you get "DENIED"
Here is a sample output of one that "WORKED" fine
MT-WAP-R-ATT] /interface lte> info 0
revision: MPSS: R11eL_v16.02.183961 APSS: R11eL_v05.03.183961
access-technology: Evolved 3G (LTE)
Trying to find out what is different about wAPR LTE now that is only "SOMETIMES" causing this issue. Like I say the example above worked out of the box. I loaded the latest stable ROS 6.48.1 and updated firmware and it just REGISTERED.
So after two weeks of factory-reset / no default config / trying other ROS versions and updating firmware to those and even downgrading firmware many many times I am asking if anyone else has any other ideas.
If the SIMs were the trouble then why do they like the other brand LTE everytime and not the Tik wAPR? And then why only SOME of them have this issue.
Better question: Might there be some other diags other than info 0 that might log connection to AT&T via modem and provide some useful input ? ( other than REGISTERED / DENIED)
Thank you for any help you can provide