I have host provider but in last days my IPs dont update, if claim and click update turn back, but 10 or 20 minutes later my ips stop update, but if again i click claim and update work back, please help, my IP class 187.108.192.xxx thanks.

As the majority of servers using that IP range (187.108.192.xxx) are showing as 'Dead', I suggest that the hosting service be contacted regarding their firewall settings.

There is more advice here;
http://www.gametracker.com/forums/forum.php?site=1&thread=108248

Plugins are known to cause issues with server scanning on occasion also.

but if u click in Server Manager: (claim server)
and UPDATE SCANNING PARAMETERS
Status: Alive
go to list and server back to the list, but only for next auto scan

That is true, but it doesn't continue scanning.
It will be firewall or plugin.

Look at the hundreds of other CS servers that are being scanned successfully versus the few (all from one host) that are not, and you must conclude that the fault lies with that host.

thanks for the quick reply: D I'll talk with datacenter

It is this list of IPs that must be allowed access
http://www.gametracker.com/forums/forum.php?site=1&thread=108247

Good luck