$ sudo docker info
Containers: 11
Images: 590
Server Version: 1.9.1
Storage Driver: overlay
Backing Filesystem: extfs
Execution Driver: native-0.2
Logging Driver: json-file
Kernel Version: 4.3.0-040300-generic
Operating System: Ubuntu 14.04.3 LTS
CPUs: 8
Total Memory: 15.16 GiB
Name: sebi
ID: G3MJ:2URQ:P7DQ:5Z4W:GAW4:RYKP:U23J:NPER:IFEQ:XLFB:QX77:H3VA
Username: sebihgdata
Registry: https://index.docker.io/v1/
WARNING: No swap limit support
Cluster store: consul://localhost:8500
Cluster advertise: 192.168.77.233:2375

$ sudo docker version
Client:
Version: 1.9.1
API version: 1.21
Go version: go1.4.2
Git commit: a34a1d5
Built: Fri Nov 20 13:12:04 UTC 2015
OS/Arch: linux/amd64

Server:
Version: 1.9.1
API version: 1.21
Go version: go1.4.2
Git commit: a34a1d5
Built: Fri Nov 20 13:12:04 UTC 2015
OS/Arch: linux/amd64

Steps to reproduce:
I have an apache httpd container that is connected to 2 overlay networks and exposes the 443 port... after several container restarts the port will fail to be exposed.
I created a typescript gist at https://gist.github.com/sebi-hgdata/adcfe6585911df94b33c (see last iptables --list command)