iPhone 16 w/IOS 18 -can’t log into some apps

I’m having the same exact issue, and it doesn’t have anything to do with VPN settings. Does anyone else have any insight to fix this? I’ve tried every kind of troubleshooting method I know how.

I want to reply @ Lawrence Finch

Sep 22, 2024 8:51 AM in response to RD2261

iPhone 16 w/IOS 18 -can’t log into some apps

One million thank you's sir!!!!

I have been plagued with this anomaly for 9 days now. I have posted on Apple Developer and Microsoft forums and called Microsoft tech support about this horrible issue. I could not install the Microsoft Authenticator or login to anything related to Microsoft on my new iPhone 16 Pro running iOS 18.

Your suggestion/tip below worked like a charm!!!! THANK YOU!

To elaborate a little, as to my specific experience;

Settings > General > scroll down to VPN & Device Management [select]. > VPN [select]. > simply turning off VPN Status will auto reconnect and turn VPN back on. > Select ExpressVPN Lightway [CLICK ON the blue I ] > TURN OFF Connect on demand.

BAM...after 8 days of sheer frustration my Microsoft Authenticator installed perfectly. Prior to this fix I had cleared my browser cache, uninstalled all Microsoft Apps including the Authenticator and Edge. Always upon reinstalling the Authenticator when trying to login I kept getting "Too Many Requests" !!!!

The above solution worked perfectly! thanks for the tip Lawrence! Credit where credit is due.

jack

My husband just got his new iPhone 16 and he cannot log into X. No where to even try to log in. He has tried every fix he possibly can but it actually says if he deletes and re downloads the app he will lose all his data. Waiting for a fix on this problem.

Do you use VPN? If so, delete the VPN profile in Settings/General/VPN & Device Management/VPN. Don't just turn it off; delete the profile.

ICLOUD-on-GMAIL-ISSUES wrote:

I am having the same issue and I don’t see Apple resolving this very major bug a month after the release of iPhone 16 …. Wtf ?

As you are having the same issue, it would be logical to read the rest of the messages in the thread you posted to. AFTER you do that, if you don’t find the solution there, post back with what you tried.

BTW, there is no major bug. If there was you would see 10,000 posts about it. There is a problem with your phone hardware, your software configuration, or some junk apps you installed on your iPhone.

And if you have the SAME issue, that is, American Airlines and Yahoo Fantasy, you need to contact those app developers; it has nothing to do with Apple.

The Google Home app has the same issue

I have a new iphone16 and have been fighting with it all day! I read all the questions and answers, and voila - I was able to sign in to Facebook!!! I had a McAfee VPN in the Settings/General/VPS & Device Management, and was able to delete that VPN!! Now I'm back on Facebook on my new phone! Thank you all for your suggestions and assistance! I was going nuts trying to figure it out!!

Yes, I have already contacted 2 of the app provider and I have already perfomed the troubleshooting measures they recommened but still nothing is solved. I do not have VPN installed nor do I use oCloud+Private Relay

I am having the same issue and I don’t see Apple resolving this very major bug a month after the release of iPhone 16 …. Wtf ?

I am having the same issue I originally had 13 with iOS 18 and it was fine and I upgraded to 16 with iOS 18 and I can login to most of my apps but I cannot login into Facebook Instagram and X but most importantly I can’t login to my Outlook email account, which is where I do business so it’s definitely causing a major issue for me right now

[Edited by Moderator]

debruelle wrote:

Just got new iPhone 16 pro max and can’t log in to Facebook or instagram

Those are both Meta products, so you will have to deal with their help center.

Perhaps a long shot:

Do you use VPN? If so, delete the VPN profile in Settings/General/VPN & Device Management/VPN. Don't just turn it off; delete the profile.

I am also having trouble logging on to my Grab app, a telecom rewards app, and two other apps. I see no issue when logging onto these apps on an Android phone. I already installed, reinstalled, restarted my phone and even contacted the developers but they’re still not working.

MatchaIceCream wrote:

I am also having trouble logging on to my Grab app, a telecom rewards app, and two other apps. I see no issue when logging onto these apps on an Android phone. I already installed, reinstalled, restarted my phone and even contacted the developers but they’re still not working.

Do you use VPN? If so, delete the VPN profile in Settings/General/VPN & Device Management/VPN. Don't just turn it off; delete the profile.

MatchaIceCream wrote:

Hi! No, I am not using any VPN. I wonder what the problem is.

Do you have VPN installed, even if your are not using it?

Are you using oCloud+ Private Relay? If so, try turning it off or changing the setting to use a location in your area.

Have you contacted the app provider?

Just got new iPhone 16 pro max and can’t log in to Facebook or instagram