While I don't know the *cause* I do know that Asterisk on 17.10 crashes:
https://askubuntu.com/questions/976143/authentication-is-required-to-start-asterisk-service
maybe that's a different bug.
and:
https://askubuntu.com/questions/976112/unable-to-connect-to-remote-asterisk-does-var-run-asterisk-asterisk-ctl-exist
While I don't know the *cause* I do know that Asterisk on 17.10 crashes:
https:/ /askubuntu. com/questions/ 976143/ authentication- is-required- to-start- asterisk- service
maybe that's a different bug.
and:
https:/ /askubuntu. com/questions/ 976112/ unable- to-connect- to-remote- asterisk- does-var- run-asterisk- asterisk- ctl-exist