Student Login does not show up in other tablets if student forgets to log out and presses back on the Android. Other tablets when tried simultaneously,crash. Sometimes, the same login id is seen as active on two tablets

Student Login does not show up in other tablets if student forgets to log out and presses back on the Android. Other tablets when tried simultaneously,crash. Sometimes, the same login id is seen as active on two tablets

It is not a bug but a feature to avoid Data duplication.

If same Ids are showing as active on two different tablets then at least one of them is not connected to Pi.