Sorry, here the CLI output 2018-11-08 14:55:20.857925 [DEBUG] mod_verto.c:4250 172.16.103.22:5477 Client Connect from 172.16.103.22:5477 accepted 2018-11-08 14:55:20.857925 [DEBUG] mod_verto.c:2003 172.16.103.22:5477 Starting client thread. 2018-11-08 14:55:20.897905 [WARNING] mod_verto.c:1864 172.16.103.22:5477 WS SETUP FAILED 2018-11-08 14:55:20.897905 [DEBUG] mod_verto.c:2030 172.16.103.22:5477 Ending client thread. 2018-11-08 14:55:20.897905 [DEBUG] mod_verto.c:2038 172.16.103.22:5477 Thread ended Von: Alexander Haugg Gesendet: Donnerstag, 8. November 2018 14:47 An: 'FreeSWITCH Users Help' <freeswitch-users@lists.freeswitch.org> Betreff: mod_verto and verto communicator on Debian 9 -> WS SETUP FAILED Hi, I try to setup the mod_verto – verto communicator scenario. The Certificate is OK “https://freeswitch.org/confluence/display/FREESWITCH/WebRTC#WebRTC-InstallCertificates” But for the sockets IP:8081 and IP:8082 I get the error message “WS SETUP FAILED” The question… Why the ws setup fails? vhosts is not configured, I am using the mini_httpd as http server. Thanks a lot Alex