what should i do when the result on my blackberry diagnostic test said : ICMP PING ECHO

= NO ? this is my blackberry diagnostic test result :

Radio Data Activations: Yes
Signal level : -76dBmm
Radio Access:GPRS
Network: Unknown
IP Address: XX.XXX.XX.XX
ICMP Ping Echo: No
-----------------------
BlackBerry Registration: Yes
Connected to BlackBerry: Yes
BlackBerry PIN-PIN: Yes

please help :( is my blackberry okay ?
what should i do ?
 
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