Wired Connection shared with other computers connects then disconnects in the nm-applet [closed]
Solution 1:
It is not fixed yet. I have had this issue just now and the workarround mentioned by the OP did the trick.
The workaround for now is to set IPv6 options to Ignore and then
sudo killall dnsmasq. Reconnect and it should work.
Solution 2:
This article seems to address the issue. Appears that dnsmasq should be removed. https://help.ubuntu.com/community/Internet/ConnectionSharing