@Brandford Adjierteh, Thanks for posting in Q&A. To troubleshoot device compliance issue, we need to go to access Intune portal and look into the "Device compliance" of the affected device to find out which compliance policy setting is not compliant.
Then, we can fix the compliance issue according to the setting. Here is a link list some common compliance issues you can refer to :
https://sysadminmusings.com/troubleshooting-device-compliance-issues-in-microsoft-intune
Note: none-Microsoft link, just for the reference.
Hope the above information can help.
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