Ten ping som prehliadol, ale nevadí. Z mobilu z tej istej siete to funguje?

ping brno.idnes.cz

Pinging c03.idnes.cz [90.183.121.149] with 32 bytes of data:
Reply from 90.183.121.149: bytes=32 time=10ms TTL=54
Reply from 90.183.121.149: bytes=32 time=10ms TTL=54
Reply from 90.183.121.149: bytes=32 time=10ms TTL=54
Reply from 90.183.121.149: bytes=32 time=10ms TTL=54

Ping statistics for 90.183.121.149:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 10ms, Maximum = 10ms, Average = 10ms