Вам же написали про адрес сервера, а не ресивера. А вот пинг проверяйте как раз из ресивера.
Код:
openpli 7.3-release vuduo4k
vuduo4k login: root
Last login: Sat Dec 26 10:11:57 EET 2020 on pts/0
root@vuduo4k:~# ping 217.23.9.50
PING 217.23.9.50 (217.23.9.50): 56 data bytes
64 bytes from 217.23.9.50: seq=0 ttl=54 time=43.076 ms
64 bytes from 217.23.9.50: seq=1 ttl=54 time=43.029 ms
64 bytes from 217.23.9.50: seq=2 ttl=54 time=43.175 ms
64 bytes from 217.23.9.50: seq=3 ttl=54 time=43.063 ms
64 bytes from 217.23.9.50: seq=4 ttl=54 time=43.041 ms
64 bytes from 217.23.9.50: seq=5 ttl=54 time=43.057 ms
64 bytes from 217.23.9.50: seq=6 ttl=54 time=43.066 ms
64 bytes from 217.23.9.50: seq=7 ttl=54 time=43.053 ms
64 bytes from 217.23.9.50: seq=8 ttl=54 time=43.081 ms
64 bytes from 217.23.9.50: seq=9 ttl=54 time=43.046 ms
^C
--- 217.23.9.50 ping statistics ---
10 packets transmitted, 10 packets received, 0% packet loss
round-trip min/avg/max = 43.029/43.068/43.175 ms
root@vuduo4k:~#