Error 10022 really Urgent !!

hi all ;

im using winsock control for my client / server application .

this application is implemented on a network that has a NT 4 server .
the client application is installed on a win98 pc ...
ive installed the server application on "8" pcs(win98pcs) also on this network , every thing work perfectly , sending and recieving works very good between these pcs ... but ...

when the server side application(on the 8 pcs) runs for a while
WINSOCK may return an error 10022 when trying to do an accept() on connections and the server application exits totally.

microsoft says that its a service pack error solved with NT sp5
so ive installed instead SP6 on the NT 4 server . but the message still appears , and ive noticed that the internet gets disconnected from the pc that the error occured on ...

is there eny hot fix that i can install on these pcs , or could i change the content of any system file that might be related to this problem ... is installing win2000 on these 8 pcs solves the problem ...

please i need help as soon as possible