Zerotier-cli join 500 error

when i join a network has error

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I have the same issue on two of my raspberry pi computers. A third pi installed and joined fine.
When I “listnetworks” it does not show anything beside the header. My zerotier does show the machines as members but I cannot access them.

Please let us know which distribution you’re seeing this on, and which model pi.
cat /proc/cpuinfo

Which version of zerotier?

What does zerotier-cli info say?

One is running on a raspberry pi 4, one on a raspberry pi 3. both on raspbian
Zerotier version - ZeroTier One version 1.8.6 build 0 (platform 1 arch 3)

(I am able to ssh into them but can’t load their login webpages through zerotier)

processor : 3
model name : ARMv7 Processor rev 3 (v7l)
BogoMIPS : 108.00
Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xd08
CPU revision : 3

Hardware : BCM2711
Revision : b03112

Same problem with two raspberry pi’s 3 (raspbian)

We were also running into this issue on a fresh install of zt on a pi (Raspberry Pi 4 Model B Rev 1.1) and noticed that “ifconfig -a” wasn’t displaying the typical virtual interface details that zt adds to a device… a soft reboot of the pi resolved the issue but just as likely maybe a hup of the zt process may have done it? After the zerotier-cli join / info / status are working as expected with ‘200’ responses and device is able to communicate on the network.

Any update. I am getting the same error on turnkey linux {vm running in proxmox}.

zerotier-cli join #############
500 join {}

zerotier-cli status
200 info ######### 1.8.7 ONLINE

service zerotier-one status

  • zerotier-one.service - ZeroTier One
    Loaded: loaded (/lib/systemd/system/zerotier-one.service; enabled; vendor preset: enabled)
    Active: active (running) since Sat 2022-04-23 17:31:57 UTC; 11min ago
    Main PID: 437 (zerotier-one)
    Tasks: 4 (limit: 77197)
    Memory: 10.7M
    CPU: 641ms
    CGroup: /system.slice/zerotier-one.service
    `-437 /usr/sbin/zerotier-one

Apr 23 17:31:57 nextcloud-tky systemd[1]: Started ZeroTier One.
Apr 23 17:31:57 nextcloud-tky zerotier-one[437]: ERROR: unable to configure virtual network port: could not open TUN/TAP device:

zerotier-cli listnetworks
200 listnetworks
–no networks are listed here–

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