Hello,
Please check the following factors that may be causing the problem:
Check the certificate:
Make sure your username and password (or certificate) are correct.
Update the driver:
Check and update the drivers for your Intel(R) Dual Band Wireless-AC 8265 network adapter.
Reconfigure the network profile:
Try deleting and recreating eduroam's network configuration file to ensure that there is no old or corrupt configuration information.
Contact your network administrator:
Contact the eduroam network administrator at your organization and ask if there are any known network issues or configuration changes.
Check firewall and security software:
Make sure your firewall and antivirus software are not blocking eduroam connections.