Sierra 7455 and AT&T issue

Sierra Wireless AirPrime Modem Card Topics
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Elfqrin
Posts: 3
Joined: Wed Apr 10, 2019 9:44 pm

Sierra 7455 and AT&T issue

Post by Elfqrin » Wed Apr 10, 2019 9:52 pm

Hi guys,
I have a laptop Lenovo T460s and when I add my SIM card in it is not able to connect.
Please see attachment.
Firmware: SWI9X30C_02.30.01.01
Please let me know,

Thank you,
Attachments
Connection Issue.PNG
Connection Issue.PNG (12.15 KiB) Viewed 2197 times

swwifty
Posts: 487
Joined: Thu Aug 30, 2018 8:21 pm
Location: NE GA Mountains

Re: Sierra 7455 and ATT&T issue

Post by swwifty » Thu Apr 11, 2019 3:43 pm

what APN are you using? you should use "broadband" for AT&T

Elfqrin
Posts: 3
Joined: Wed Apr 10, 2019 9:44 pm

Re: Sierra 7455 and ATT&T issue

Post by Elfqrin » Mon Apr 15, 2019 10:46 am

Thank you for the reply,

I am using the default APN that comes with Windows 10 I guess. Had no issue working on my Verizon SIM card.

What do you mean by "broadband"?

swwifty
Posts: 487
Joined: Thu Aug 30, 2018 8:21 pm
Location: NE GA Mountains

Re: Sierra 7455 and ATT&T issue

Post by swwifty » Fri Apr 26, 2019 10:20 am

broadband is the name of the APN that AT&T uses.

Elfqrin
Posts: 3
Joined: Wed Apr 10, 2019 9:44 pm

Re: Sierra 7455 and ATT&T issue

Post by Elfqrin » Sun Apr 28, 2019 2:01 am

Since Windows has a default APN I guess I will have to created one for ATT right?
Not sure what to enter on the empty fields.
Please see my attachment.

Thank you
Attachments
ATT.PNG

swwifty
Posts: 487
Joined: Thu Aug 30, 2018 8:21 pm
Location: NE GA Mountains

Re: Sierra 7455 and ATT&T issue

Post by swwifty » Thu May 30, 2019 7:14 pm

Elfqrin wrote:
Sun Apr 28, 2019 2:01 am
Since Windows has a default APN I guess I will have to created one for ATT right?
Not sure what to enter on the empty fields.
Please see my attachment.

Thank you
That should work but it might need to be a lowercase B?

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daniel.bedard
Posts: 3
Joined: Sat Jan 19, 2019 7:50 pm

Re: Sierra 7455 and ATT&T issue

Post by daniel.bedard » Mon Jun 17, 2019 3:33 pm

Did this last solution solve your problem?

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JimHelms
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Location: DFW Texas
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Re: Sierra 7455 and AT&T issue

Post by JimHelms » Mon Jun 17, 2019 3:41 pm

If your using it on a Windows machine, you may also want to try Skylight Manager to configure the APN.

There was a time we were building PC's with MC7455 to act as media centers and the Skylight Manager worked well for controlling the MC7455 modem.

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