This article explains how to troubleshoot the login issue to the Junos space WebUI via the Radius server.

To identify the issue, please use the below command to collect packet capture while login to Junos Space WebUI

tcpdump -i any "port <Radius server port> -w Auth.pcap

If you are seeing below "Access-Request" from your Junos space and there is no response from the Radius server, please review the solution section in the article

To fix the issue, please reach out to the Radius server Team. There could be a service that is stopped state in the Radius server after reboot