just out of interest have you changed all the 127.0.0.1 ips to the external ip your using ? as you are not soposed to do that, if you have changed every single ip to the external ip of the hosting machine that would be the cause of the problems your getting ? some have to remain 127.0.0.1 for eveything to work correctly
iam not suggesting that is what you have done but iam interested to know, also have any of the ports been changed ie, normal port structure is 7000 7100 7200 some server owners use custom ports on 1.9 ledu servers to block some of the bad ledu clients connecting, check your game ports. some people used to set there 1.9 game ports to 7001 7101 7201 etc etc