Hi, os:Win2000 and sp2 I use two Isa servers, each server in the other location. Each Isa server is connected to Internet by lease line /128kB/. Access to the Internet is fine and each Isa server is working O.K. I also use Ipsec /3des/ tunnel between these two locations by Isa servers. Tunnel is working fine. I would like to use bandwidth control in the Isa server: all internet access use 70 percent effective 128kB and the tunnel use 30 percent. When set up effective bandwidth to 128kB and create two bandwidth priorities : internet-70 and tunnel-30 and Default bandwidth priority is 100, next I create destination set with Ip address of the second ext ISa server, next I create two bandwidth rules-the first: "Internet access" with bandwidth "internet" with destination sets to all the second :"Tunnel access" with bandwidth "tunnel" with destination sets to destination set with Ip address of the second ext ISa server./I try to use also internal Ip address of another server/ I start performance monitor and look at counters of bandwidth of Isa server-all counters are zero-bandwidth control does not work and after when I use ISA web proxy services from IE, service stop with error: Event Type: Error Event Source: Service Control Manager Event Category: None Event ID: 7031 Date: 6.8. 2001 Time: 9:49:59 User: N/A Computer: XXX Description: The Microsoft Web Proxy service terminated unexpectedly. It has done this 4 time(s). The following corrective action will be taken in 0 milliseconds: No action. Can you help me ??? Thanks