So clean install of ubuntu. Loaded docker and portatiner, homarr, radarr,qbittorrent,webfin. All works fine can ssh into server and access the stack running though the web ports fine. Untill i restart. Then i cant access anything. Cant use ssh or web port or even ping the server. On they physical server i can ping out and dowload. Is dockers network bridge breaking something? I know dangerously little about ubuntu, but i think dockers bridge 127.0.0.* is interfering with the local network 192.168.*.
How would i test this?
You probably meant 172.*.*.* as 127.0.0.* are a loopback IPs (localhost).
Unless your LAN network IP range and Docker bridges are intersecting, Docker should not break your network. I have to note that 192.168.*.* addresses can be used too when you are put of the default ip ranges, but Docker would not create a network with IP ranges that can be detected as existing in your network. The only case I had problem was when I used WSL2 on Windows and the WSL2 VM got a new IP after Windows reboot and it got an IP that intersected with an existing Docker network.
It is hard to tell what happened in your case though.
We usually need the following information to understand the issue:
1. What platform are you using? Windows, Linux or macOS? Which version of the operating systems? In case of Linux, which distribution?
2. How did you install Docker? Sharing the platform almost answers it, but only almost. Direct links to the followed guide can be useful.
3. On debian based Linux, the following commands can give us some idea and recognize incorrectly installed Docker:
docker info
docker version
Review the output before sharing and remove confidential data if any appears (public IP for example)
dpkg -l 'docker*' | grep '^ii'
snap list docker
When you share the outputs, always format your posts according to the following guide: How to format your forum posts