this post was submitted on 14 Aug 2023
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My Docker containers can no longer communicate with the host's local network (lemmy.world)
submitted 1 year ago* (last edited 1 year ago) by UberMentch@lemmy.world to c/selfhosted@lemmy.world
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I feel like I'm losing my mind. A few days ago, all of my containers running on Docker Desktop on my Windows Server host were working nicely. I had NFS volumes set up on a few of them to reach my synology NAS on my local network, and things were working fine. I've done so much digging and tweaking over the last few days, so I can't be certain where all I've broken this connection further, but I woke up one morning and the containers that all had connections to my NAS via NFS volumes were no longer working. I hadn't restarted my host, I don't know what changed. Containers like NPM that I had set up for my internal DNS would no longer redirect to any IP that wasn't within my docker network (for example, I run Plex NOT in a container on my host PC). I had all of my containers on the default bridge network, and now nothing on this docker network can connect to anything on my local network.

I've tried setting static routes in my router, changed a lot of configurations, dug through tutorials, guides, and posts all weekend, but I couldn't make any progress in figuring things out. I'd really appreciate some help on this one, and can provide more details, logs, compose files, when needed. Just don't want to dump everything at once

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[–] UberMentch@lemmy.world 1 points 1 year ago

Hmm, I've never looked into qemu. Do you use a GPU in your environment? It passes through to your Windows VM fine?