Hello, configure Hotspot with Radius in mikrotik and its work five days very good then i am facing problem fistely that "Radius server is not responding" i am trying to do every thing that which one suggested by mikrotik expert but still its not resolve, then i am reconfigure mikrotik with...

Hello Friends,
I am configure Hotspot with using Radius server and its work five day very good but now i am facing problem of "Radius server not responding".
please help me for resolve this issue