Error connecting to Hokuyo: Could not open network Hokuyo

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I try to use laser scan of hokuyo lidar uam-05lp-t301 but it say I could not open ethernet port

192.168.1.10:10940 could not open ethernet port.

then I try to ping 192.168.1.10 make a check that this ip address is available

ping 192.168.1.10
PING 192.168.1.10 (192.168.1.10) 56(84) bytes of data.

64 bytes from 192.168.1.10: icmp_seq=1 ttl=64 time=0.052 ms
64 bytes from 192.168.1.10: icmp_seq=2 ttl=64 time=0.052 ms
64 bytes from 192.168.1.10: icmp_seq=2 ttl=64 time=0.052 ms

it can ping the address but i could not open my port