Using an unrecognized device. If you’re signing in to Instagram in a web browser or using a different phone or tablet, Instagram may flag the login as suspicious activity. [1] X Research source A failed connection. If you’re unable to connect to the proper security protocols, you may see “challenge_required. " Your internet might be at its limit, like if you’re downloading something in the background, or you have a poor connection. Anything that prevents your browser or the mobile app from establishing a connection with Instagram’s security protocols can trigger this error.
Once you log in, turn on two-factor authentication to reduce the chances of getting this error again.
If you’re using mobile data and getting this error, try switching to a stable Wi-Fi connection. If you’re using a Wi-Fi connection, try switching to mobile data.
This may clear up a glitch that your current session in the app prompted.
To confirm that this is the issue, you can also ask one of your friends to post a Story to see if you can view it.
To do this, go to your profile and tap the three-line menu icon, then go to Settings > Security > Access data.
