ATT issue connecting to Microsoft Teams and LinkedIn

I do not believe that AT&T is blocking the sites.  I believe that the sites (or their network) are blocking you based on your AT&T-provided IP address.

If you can prove otherwise, please explain.

BTW, one reason I do not believe AT&T is blocking these sites is because I use them routinely on my AT&T connection.

We understand your frustration with your work getting interrupted, sbumpusb2.

We don't have a direct line to call, as we primarily operate on the Community Forums. As JefferMC stated, it seems that the webhost of those websites is blocking your connection. In that case, you would need to reach out to their support team to be whitelisted and able to access those sites.

If you would like for us to dig deeper into this, we can send you a Direct Message to see what we can find. Let us know what works best for you.

Donovan, AT&T Community Specialist

I'm having this exact same issue on my Galaxy S22 Ultra on AT&T where Teams and LinkedIn connections drop after some amount of time on mobile data.  The connections are restored immediately when I connect to wifi.  This needs a solution ASAP.

@Jtriplett38 you are describing basically the opposite of the OP's behavior.

We want to help with a solution to what you're experiencing with your mobile data, @Jtriplett38. 

Below are a few recommendations we'd like you to try to help improve your connection on Teams and LinkedIn: 

Power Cycle/Restart your device:

• Restarting your device is one of the most common fixes for connection errors. 

Toggle Airplane Mode:

• Most devices have the option to place your device in airplane mode. Airplane mode while designed to power down while in the air, can help sync your phone to the nearest tower. 

Reset the network:

1. From the home screen, tap the settings icon.
2. Scroll down and select General.
3. From the general screen, scroll down and select reset.
4. You will be taken to the reset screen. Select Reset Network Settings. Resetting the network deletes saved Wi-Fi Networks. 

In addition, you can check out the many causes of weak signals to learn why you may be experiencing a drop in your connection. 

If the above steps do not work, try our Wireless Support page. Our Device How-To also has a lot of great information!

Please keep us updated on how this information works for you! We're happy to take a more advanced approach if needed. 

Sydne, AT&T Community Specialist

@JefferMC Sorry, my mobile connection is AT&T and the wifi is non-AT&T.  So I'm having the same issue in that when connected to AT&T (mobile) my Teams stops working after some amount of time (not immediately).  It will work for an hour or days, it just depends but the connection drops after some time and connecting to my home (google fiber) or at work (comcast business), the connectivity issues disappear.

It is definitely an AT&T issue. A support phone # to call will suffice.  Thanks for all the advise, but at this point I need to talk directly with an AT&T rep. As mentioned, other WiFi service works fine when accessing the sites mentioned but not with AT&T. So as to continue as an AT&T consumer I would like a representative to direct message me so we can find a proper solution.  Thanks for all your time and consideration to all the members who posted replies to my issue.

Thanks for clarifying for us, @sbumpusb2! 

What kind of message are you getting when you try to access these sites? If you're getting a blocked notification, there should be an option to allow access. This will also add it to the exceptions list so it isn't blocked in the future. 

Raiden, AT&T Community Specialist

@sbumpusb2 , You can call 800-288-2020 until you're blue in the face.  It will not help you when the problem isn't within AT&T's network.  It will not even help you if the problem is within AT&T's network because the network engineers are insulated from the phone center by miles of procedure.

@Jtriplett38 , do you have software on your phone to do traceroutes?

@JefferMC Yes.  This is what I'm seeing with teams.microsoft.com and linkedin.com.  Notice that the server is responsive while on wifi but not on mobile.  What other detail do you need?

We'd like to help with a solution, @Jtriplett38. 

Please let us know if you tried the troubleshooting steps listed above. If the problem continues, we may need to perform a back-end fix. Keep us updated! 

Sydne, AT&T Community Specialist

@ATTHelp I've tried everything you mentioned and then some with no resolution.  There are at least 3 other AT&T subscribers in my company in different areas of the country that are experiencing the same issue I am. Some are iOS and some are android users.

Cue the ultra-powerful "back-end fix"!  Stand back, everyone.

¯\_(ツ)_/¯

Thanks for letting us know, @Jtriplett38. 

Let's meet in a Direct Message on this. Please check your Direct Message inbox (it's the chat icon next to the bell icon in the upper right corner of the Forums).

In the meantime, another thing we'd like to recommend is troubleshooting your SIM card. Removing the SIM and placing it back into the phone sometimes help clear up signal issues. 

1. Turn off the device
2. Remove the SIM card (Use the SIM Removal Tool that came with the phone)
3. Clean it with a soft cloth
4. Place the SIM back into the phone.
5. Power it on and test.

If you see dirt or dust in the SIM Slot, we recommend using a product like Air Duster to remove. 

Remember to keep watch for our DM! 

Sydne, AT&T Community Specialist

I am unable to access any microsoft services cloud files (OneDrive, Word, Excel, etc) via at&t wireless. My company uses OneDrive for virtually all of it's document management/creation and when I open OneDrive on ATT Cellular, it loads nothing and appears empty. If I turn on VPN by Google One, I can then access the files as normal. So ATT is for some reason blocking Microsoft services. I can't even access bing- says it fails to load. Yet cellular internet for EVERYTHING but Microsoft services seems to be working fine.

This issue cropped up this morning. Worked fine over the weekend.

Called ATT and was on the phone with them for about 3 hours. Eventually they said it was an issue on their backend and they'd work on it.