Hello, why my gametracker does not work? IPs added to the whitelist, no filter blocks. What is it?

Screen: http://prntscr.com/7kmk0e

I click "UPDATE SCANNING PARAMETERS" and ... GT works, but only for a few minutes ... then it dies.

I recommend checking BOTH the Ts3 and Firewall to determine which IP is being blocked:

208.167.241.190
208.167.241.185
208.167.241.186
208.167.241.183
208.167.241.189
108.61.78.147
108.61.78.148
108.61.78.149
108.61.78.150

All of these addresses have been added to the "whitelist". Other scanner works without a problem, just as other users query

It seems a bit odd that you whitelisted all of the IPs in both your TS3 server and the server's firewall, but your server is still rejecting the traffic. I suggest checking the block list as well to determine if the block list is overriding the whitelist.