thanks tom, but this still doesnt solve my problem. the problem is that i have a 64k link and i need at least 17k to use for a connection tht does not go through the isa box. it is a net2phone connection. is there a way i can limit the bandwidth used by isa? what if i were to right-click bandwidth rules, click on properties and then click on enable bandwidth control and put an amount of b/w in there, done it before, but it always makes my browsing slower no matter how much b/w i put in there. is there a formula i can use to calculate my effective b/w? thanks