getting error while enabling the eval license

it is connnected to internet but getting same issue -

FAZVM64-KVM # execute ping service.fortiguard.net
PING service.fortiguard.net (83.231.212.81): 56 data bytes
64 bytes from 83.231.212.81: seq=0 ttl=128 time=172.680 ms
64 bytes from 83.231.212.81: seq=1 ttl=128 time=172.906 ms
64 bytes from 83.231.212.81: seq=2 ttl=128 time=172.703 ms
64 bytes from 83.231.212.81: seq=3 ttl=128 time=177.645 ms

--- service.fortiguard.net ping statistics ---
4 packets transmitted, 4 packets received, 0% packet loss
round-trip min/avg/max = 172.680/173.983/177.645 ms