Hi,
I have a handful of RUT956s in the field running what looks like fairly recent firmware. Build date of December, some a bit newer, January/February. I have a webbing multicarrier SIM that typically will prefer T-Mobile over other carriers. I’m able to manually force it to connect to Verizon seemingly okay.
AT&T of course has the best service in this geographic area I’m in. We know this because an actual AT&T SIM from AT&T works great on all the routers and has around 8-10X the bandwidth on upstream and downstream.
The carrier, webbing is seeing AT&T reject the device when they provision the SIMs to connect to AT&T, however I have one in the lab (identical device) that appears to have worked seemingly without issue when they provisioned another webbing SIM to work with AT&T.
Carrier believes I should upgrade to newer firmware, possibly manually on the field devices now that we have a PoC that works in the lab. I’ve noticed a couple of the routers are auto prompting to download RUT9M_R_00.07.20.3, they’re currently running RUT9M_R_00.07.20.1 it looks like. I’m told by Teltonika support that there may be a newer modem firmware available than what’s on the device.
Modem is a EC25-AF running FW version EC25AFFDR07A10M4G
The problem with these field routers is they’re far away and would require a technician on site with a laptop and a plan of attack.
So given that we know AT&T has a great signal in this area, a router that works with webbing on AT&T in the lab, what’s the forum think the best course of action is here?