access cellar data

Thank you again, Lori.

I'm trying to follow you instructions, and getting extremely frustrated. I can see your DM indicator if I login on my other iPad, but not when I login on the one with the problem.

Is there any point in trying to troubleshoot on a device that's not connected?

Hi cbrillow, we understand how frustrating it can be when technology doesn't work for us, and we want to help you get yours working.

To answer your question, yes you can troubleshoot from a working device to answer questions about the device you are having trouble with, and hopefully you will be able to access the settings that the troubleshooting steps walk you through on the iPad having trouble.

Please use the DM indicator that you see on your working tablet to communicate with us through a DM. From there we can work with you privately to get this resolved for you.

Thank you for contacting AT&T Community Forums.

Lorie, AT&T Community Specialist

Also getting “Invalid Access” error messaging on selecting “Settings/Cellular Data/Manage AT&T Account…”

3rd generation 2017 iPad.

Have continuously been using AT&T DataConnect Pass Plan since August 2018 uneventfully until now.

Per above suggestion in thread changed AT&T SIM card, but without change in the error, at local AT&T store.  Representative there suggested this might be a computer glitch somewhere in system and to come back tomorrow, if not resolved, to prepay the next round of service in person.

We want to help with the error you're receiving, @May_Bee. 

• What current network stregnth is your device showing in the Status bar? The network signal strength is displayed in the Status bar. The more bars, the better the connection. If the iPad is connected to the Internet via the cellular data network, the 5G, LTE, 4G, 3G, E, or GPRS icon appears in the Status bar.
• Have you confirmed that your celluar data is turned on?
  1. From the home screen, select the Settings app.
  2. Select Cellular Data. To turn cellular data on or off, select the Cellular Data switch.
     • Note: To turn LTE data on or off select Cellular Data Options > Enable LTE switch. 

Next, you may need to reset your network settings. You'll need to proceed with doing the following:

• If you are having connectivity issues, you can try resetting your network settings. This will delete all network settings, returning them to factory defaults. From the home screen, select the Settings app > General > Transfer or Reset iPad > Reset > Reset Network Settings > select Reset to confirm.

Meet us back here with the results. 

Sydne, AT&T Community Specialist

Signal strength 3 of 4 bars.

With WiFi off: LTE indicated; with WiFI engaged LTE not indicated; in all cases have internet access.

Cellular Data on.

Under Cellular Data Option

   > Data Roaming =on

   > Low Data Mode = off

   > Limit IP Address Tracking = off

   > Enable LTE Switch not present

Selecting "Settings/General/Transfer or Reset iPad/Reset/Reset Network Settings" does not change outcome: still get error code USIM9991 "Invalid Access" when selecting “Settings/Cellular Data/Manage AT&T Account…”

Thanks for your response, @May_Bee. 

Aside from this error message you're receiving, is your service working properly on your iPad? 

Sydne, AT&T Community Specialist

Other than the error message, service is working just fine.

I expect that will continue until 27 May 2022 when the current Plan expires.  However, I want to prepay the next round of service before going on travel in 2 days.

Thanks for confirming that for us, @May_Bee. 

As the store associate concluded, this may be a glitch in the system. We recommend following their advice to renew your plan in person. 

Sydne, AT&T Community Specialist

I went back to the AT&T store this morning and it turns out they >cannot< accept payment applied to the (prepaid) DataConnect Pass Plan / Session Based Wireless Data Service that I use.  The store did suggest trying to work it out by phone to 800-901-9878.

What would be your suggestion?

We appreciate the update, @May_Bee. 

You may be receiving this error due to our most recent change. Effective April 13th, 2022 DataConnect Pass (Session-Based) data plans were grandfathered. Although you're receiving this error message on your device, the change shouldn't affect your service. You can log in as an existing customer to:

• Add more to your available data balance.
• Update your equipment information.
• Update your personal and account information.
• View your data balance.

If you're looking to change to one of our prepaid data-only plans, you can explore AT&T PREPAID monthly data plans. 

Prepaid data plans at a glance:

• 15GB: $35 per month (add 5GB for $10)
  
• 20GB: $25 per month - when you pay $300 in advance for 12 months (add 5GB for $10)
  
• 100GB: $55 per month (add 5GB for $10)

We hope this information helps! 

Sydne, AT&T Community Specialist