socket programming c#

[nagasrinivas05]

hi friends,
i am using socket programming to receive data and now the clients will be sending ip through heartbeat for every 2 mins, and by using timer i have to check if i do not receive data or heartbeat upto 2 mins i have to show message that particular client is disconnected from network

kindly help me its urgent......... ..........with the code

[sanctii]

What is the question exactly?