ISA Server issues

[Confused]

hi Everyone,

I'm having an issue with the our ISA server it is disconnecting clients with
the following error: "Description: ISA Server disconnected a non-TCP
connection from (IP Address Of client machine) because the connection limit
for this IP address was exceeded. Larger custom connection limits should be
configured for the IP addresses of chained proxy servers and back-to-back ISA
Server computers with a NAT relationship."

Can someone help me? I have already set the connection limit on the ISA
server to unlimited.