Hi, I’m kind of having the same problem.
I have a Raspberry Pi 4 B+ running Raspberry OS for arm64.
Everytime I use
zerotier-cli info it either shows OFFLINE or TUNNELED, rarely ONLINE.
I’ve tried configuring iptables, installing another distro/OS, and nothing worked.
I can guarantee my router isn’t the problem, since I have installed zerotier in two laptops running WIndows 10 under the same router and both of them displayed the ONLINE status.
I tried zt-travis’ suggestion too and it didn’t work either.
Here follows what
# Generated by xtables-save v1.8.2 on Tue Sep 22 01:36:25 2020 *filter :INPUT ACCEPT [3132:314508] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [10160:1398718] -A INPUT -i zt+ -j ACCEPT -A OUTPUT -m owner --uid-owner 998 -j ACCEPT -A OUTPUT -o zt+ -j ACCEPT COMMIT # Completed on Tue Sep 22 01:36:25 2020