Dockers no longer talking to each other after reboot


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I rebooted my server last week and now none of my dockers will talk to each other via the host (unraid) IP.  My dockers are setup on a custom Network called proxynet that I setup years ago from Spaceinvader One's tutorial (https://www.youtube.com/watch?v=I0lhZc25Sro&t=767s)

 

If I change my dockers to talk to each other via their private IPs (172.19.x.x) they will work.

 

The weird thing is, I have a nginx docker and a mariadb docker that will kind of talk to each other but incredibly slow (a good 10-30 second for it to a simple mySQL query from my PHP site that should take microseconds). If I change my PHP code to point to the internal IP of the mariadb docker its back to its normal speed.

 

I can't figure out what caused this issue. If I console into to any of my dockers I can ping the host so it doesn't appear that the host is blocking anything it just won't do its forwards.

 

Anyone have any suggestions?

 

Thanks.

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