My Samsung phone loses connection to eduroam very often

Starting with Android v9.0 (Pie) Samsung has  a feature that automatically disables apps after 30 days causing Eduroam to stop working. To avoid this from happening, you can add the Clearpass Quickconnect app to an exception list.
(Note: the images may vary depending on android version and phone model)

On your phone, open "Settings", click "Battery and Device Care".

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Click "Battery"


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Then click "Background Usage Limits".

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Click "Never sleeping apps".

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Click + in the upper-right corner.

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In the list of apps, look for "Clearpass QuickConnect", check it, and click "Add".
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Done!

This article helped me!