This is some sort of race condition every 15 minutes causes a flood/ddos and will break the connection
debian bugtracker: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=856843 kernel bugtracker: https://bugzilla.kernel.org/show_bug.cgi?id=194531 patch: http://www.spinics.net/lists/linux-cifs/msg12456.html Using v3 is not an option for me, because my provider is not offering unix extensions with version > v1. This bug was not fixed on HWE kernels (4.8), therefore there is no fixed version available. Please backport the patch that was mentioned above, thank you! ** Bug watch added: Debian Bug tracker #856843 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=856843 ** Bug watch added: Linux Kernel Bug Tracker #194531 https://bugzilla.kernel.org/show_bug.cgi?id=194531 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1687273 Title: Shared folder randomly not mounted To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cifs-utils/+bug/1687273/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs