Incase while logging-in to Hotspot if getting Error “Radius Server not Responding” check if the MikroTik Storage is and incase its full then simply Clear the Logs and Rebuild.
To Clear Userman Logs
In the CLI
Use the following commands:
[admin@RouterX] > /tool user-manager database clear-log
To Rebuild Database
In the CLI Use the following commands:[admin@RouterX] > /tool user-manager database rebuild