I just downloaded and compiled the latest Git and a little after starting freeswitch I'm getting non stop the following: [WARNING] sofia_reg.c:1247 SIP auth challenge (REGISTER) on sofia profile ‘internal’ for [140@76.XXX.XX.XXX] from ip 212.224.71.236 [WARNING] sofia_reg.c:1247 SIP auth challenge (REGISTER) on sofia profile ‘internal’ for [140@76.XXX.XX.XXX] from ip 212.224.71.236 [WARNING] sofia_reg.c:1247 SIP auth challenge (REGISTER) on sofia profile ‘internal’ for [thomas@76.XXX.XX.XXX] from ip 212.224.71.236 [WARNING] sofia_reg.c:1247 SIP auth challenge (REGISTER) on sofia profile ‘internal’ for [thomas@76.XXX.XX.XXX] from ip 212.224.71.236 [WARNING] sofia_reg.c:1247 SIP auth challenge (REGISTER) on sofia profile ‘internal’ for [140@76.XXX.XX.XXX] from ip 212.224.71.236 [WARNING] sofia_reg.c:1247 SIP auth challenge (REGISTER) on sofia profile ‘internal’ for [140@76.XXX.XX.XXX] from ip 212.224.71.236 [WARNING] sofia_reg.c:1247 SIP auth challenge (REGISTER) on sofia profile ‘internal’ for [thomas@76.XXX.XX.XXX] from ip 212.224.71.236 [WARNING] sofia_reg.c:1247 SIP auth challenge (REGISTER) on sofia profile ‘internal’ for [thomas@76.XXX.XX.XXX] from ip 212.224.71.236 [WARNING] sofia_reg.c:1247 SIP auth challenge (REGISTER) on sofia profile ‘internal’ for [140@76.XXX.XX.XXX] from ip 212.224.71.236 [WARNING] sofia_reg.c:1247 SIP auth challenge (REGISTER) on sofia profile ‘internal’ for [140@76.XXX.XX.XXX] from ip 212.224.71.236 [WARNING] sofia_reg.c:1247 SIP auth challenge (REGISTER) on sofia profile ‘internal’ for [thomas@76.XXX.XX.XXX] from ip 212.224.71.236 [WARNING] sofia_reg.c:1247 SIP auth challenge (REGISTER) on sofia profile ‘internal’ for [thomas@76.XXX.XX.XXX] from ip 212.224.71.236 it's non-stop and doesn't let me do nothing else. After the first time I went on to vars and changed the 1234 password....restarted and same thing happened, I also try denying the ip on acl.conf (not sure if has something to do with it but gave it a try): <configuration name="acl.conf" description="Network Lists"> <network-lists> <list name="test2" default="allow"> <node type="deny" host="212.224.71.236" mask="255.255.255.0"/> </list> </network-lists> </configuration> Restarted the computer but nothing, he (thomas I guess) was back on my console. Any ideas??? p.s. My computer is on DMZ (I know DMZ is not ideal but is the only way I got to be able to connect to the internal profile from out of the office etc).