Join ok but no networks listed about zerotierone HOT 5 CLOSED

Maybe the tun module is not loaded or working. Or there is some other system permissions issue. Is /var/lib/zerotier-one mounted read-only?

systemctl status zerotier-one and journalctl -u zerotier-one for possible clues.

If you see zerotier-one[2098212]: connect: Connection refused that's UPnP library and probably not related to this issue.

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Hello. It sounds like maybe you have auto-assign IP turned off in the web UI?

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Hi, IP is assigned:

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Hmm, I've never seen anything like this before. Are you certain you don't have two instances of ZeroTier running? And do you have any other software installed that might interfere with network interfaces?

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Looks like this was solved on the forums, it was a missing /dev/net/tun.

Solution was:

does /dev/net/tun exist? If not, you’ll need to get the TUN/TAP module loaded in the linux kernel, likely via sudo modprobe tun

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