Hello! I need some fresh ideas about this issue. My gateway is already REGED, but when REG expires and sofia is trying to renew REG, then it fails to register. . 2009-06-16 16:46:39 [ERR] sofia_reg.c:1381 sofia_reg_handle_sip_r_register() chipoly Registration Failed with status DNS Error [503]. failure #14 . 2009-06-16 16:46:40 [WARNING] sofia_reg.c:334 sofia_reg_check_gateway() chipoly Failed Registration, setting retry to 450 seconds. Here is a complete before/after http://pastebin.freeswitch.org/9406 when doing sofia profile external restart, gateway REGs again, so it's not DNS problem. (I think) Thank you for ur help! Edwin Villarreal