SIM PIN2 to unlock mobile broadband device

Turn off your computer and turn it back on.  The cellular connection should now work.

My new Laptop is a Lenovo T470s (S/N PC0PXLX1) with a "Sierra Wireless EM7455 Qualcomm Snapdragon X7 LTE-A" WWAN card. 

After working well for 6 weeks, I am now unable to get an internet connection using that adapter.

Windows 10 network diagnostics tells me I need to "Enter a SIM PIN2 to unlock the mobile broadband device". I can find no way to enter anything.

Tech support at both AT&T and Lenovo have never heard of SIM PIN2 and each blames the other for the problem. I have talked to each several times and have been referred to "advanced tech support." 

My internet provider is AT&T.

This community has referred to a "provider specific software" that solved one participant's similar problem.

My provider, AT&T, has given me two PUK numbers. I suspect their PUK2 may be the SIM PIN2, but I still have no way to utilize that information.

HELP!

[Moved from: Windows Insider Program / Windows Insider Preview / Install, upgrade, and activate / PC ]

Sim2 pin software

Sorry thanks for trying. I have tried numerous times. it only gives me option for AT&T. Won't acknowledge any other network.   In Canada we don't have AT&T, Besides I bought this Surface through school. It should not require me to have an active cellular service. 

Basically I have a $400. 00 device  I cannot use due to not having this sim2 card. GRRRR.

I have paid twice to fix this problem and refuse to pay anymore to get this resolved It is Microsoft who needs to fix this stop passing the buck 

I am tethering it with my cell phone using up all my data

Have you tried installing the driver the Sierra website?

Have you tried installing the driver the Sierra website?

what will that do I can try it