about serversockets

i wrote a multiclient chat server which runs perfectly. when the internet conection is offline.But as soon as i start the net service (website,chat etc.) my multiculient chat server throws exception and get crashed (my net connection via cableline not dialup).

what could be reason behind it is their any solution plz let me know as soon as possible.

its very urgent because i have to submitt my project to my client very early.

[447 byte] By [alok2k3a] at [2007-9-29 6:20:16]