Collabora Online [ loolwsd ] ERR Failed to bind to: IPv6 port


Nextcloud version _(eg, 12.0.3)_:
Operating system and version _(debian 9.1)_:
Apache or nginx version _(2.4.25-3+deb9u4)_: 
PHP version _(eg, 7.0+49)_:

The issue you are facing:

I am trying to integrate collabora online with my nextcloud 12 instance following the instructions at

I noticed that despite the docker container of collab/code is running, docker logs shows lots of:
wsd-00027-00027 00:29:46.415744 [ loolwsd ] ERR Failed to bind to: IPv6 port: 32857 (errno: Bad file descriptor)| net/Socket.cpp:274

PS: The docker HOST has ipv6 disabled. I dont know why collab/code is blindly trying to bind to a ipv6 address.


I had the same issue, the following workaround works for me:

in /etc/loolwsd/loolwsd.xml change the following: