Update, update, update. We are one-to-one iPads, and every time something gets updated, all the rest of it has to be updated as well. The CamScanner thing seemed to affect other apps as well. So, here's our little checklist for fixing this problem;
1) Make sure you're on the network and the right one (our guest network doesn't allow updates)
2) Clear the cache/history of any app you're trying to use, if applicable
3) Check to see if there's an iOS update; if so, run it
4) Reboot the iPad by holding down both buttons
5) For teacher iPads, update everything you're using from the AppStore
6) Turn on your Location setting if it is off. Sometimes that works for reasons we don't understand. You might need to reboot again at this point.
7) Uninstall Canvas and reinstall it from the school's AppPortal if nothing else seems to work
Our students can't update apps manually, so sometimes we have to wait a few days for our IT folks to test and push out new app versions. It's a constant battle with the iPads.
I should note that my own children, who have Windows laptops in the same district where I teach, do not have these update issues with Canvas. Everything pretty much seems to work most of the time.
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