Server browser problem

Well I got a problem with my server browser.
Whenever I click refresh it goes 0/132 and then I goes 6/132 and I get 6 FFA servers and when I retry I only get different FFA servers does anyone know how to make it show like SD and TDM servers? (before anyone asks my filter is on all)

you maybe need to open your nat? i got this problem on all games befor i did it. you maybe got the same problem.