I've opened port on firewall and also tried through ssh. I've followed all troubleshooting steps and same result:

DBG 3.4.2

Failed to start DBG session


Reason: connection to the client address 69.50.15.138:7869 is not allowed
Not sure what it means? Visit http://www.nusphere.com/dbg/ for troubleshooting.


Debugger request: "2935858811@clienthost;d=1,c=0"
Request found in: "$_COOKIE['DBGSESSID']"
Target PHP version: "5.2.x"
Server API: "Apache"
Extensions API: "220060519"
Modules API: "20060613"
PHP API: "20041225"

ANY help would be greatly appreciated!