Android cellular mobile not seeing network Galaxy Z Fold 3 5G SM-F926u

Hi, I have a Galaxy Z Fold 3 5G SM-F926u that sees the zerotier network when on wifi (not sure if it’s using zerotier), and definitely not seeing anything when on mobile/cellular.

I have enabled cellular data and checked Disable ipv6.
I am unable to ping anything on my home network.

I have a cable router from the cable company, with a asus merlin router handing out DHCP and a pihole with a static ip connected to the cable router. The asus merlin router is getting DNS from the pihole.
The pihole is doing dns over https.

I have been able to get a drone on 4g to connect to the home zerotier network wihtout a problem. The drong is on googlefi sim card.

The android is on tmobile.


So I can ping via ip address from my phone on cellular to a device on my local network. Is it possible for local DNS resolution? Or is that asking to much?

I am unable to stream video from a device on the network to my mobile using cellular.

Unfortunately some cell providers are just extraordinarily hostile to peer-to-peer communication. Sometimes it even differs between regions on the same provider, and we don’t have a lot of information to go by on how or why. I have T-Mobile myself and everything works fine in my area on both my Android and iOS handsets. Meanwhile, others on T-Mobile in other parts of the country have issues. Wish there was more I could offer for help, but there really isn’t at this time.

I’m friends with the tmobile corporate rep in my area. Anything (buzzwords) I should bust his balls on? p2p? Anything else? I think I heard the word ‘punching’ once.

I should be able to ping it’s local zt ip address from local, right?
I had reformatted to a 32bit os, added zt apt, deleted the old record in the webpanel and then readded, it says it’s there, but when I ping itself, it’s not pinging…

how are you installing via APT on Android? Never heard of that before. All we support on Android is the Android package.

The drone is apt on RPI4B+ raspbian, running on a 4g dongle. I think i installed it with apt…either way, the zt-cli is on the pi.

EDIT: Just realized I never mentioned the drone on 4g; the 4g dongle is on google fi.

Ive got a couple issues going on here; let me get back to you on this. Thank you.

Ahh I see. I was confused as the topic at hand is about Android.

At any rate, if you’re pinging the managed IP address of the local machine, it should indeed respond:

15: ztmjfonbjb: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 2800 qdisc pfifo_fast state UNKNOWN group default qlen 1000
    link/ether 3e:af:14:4c:64:84 brd ff:ff:ff:ff:ff:ff
    inet brd scope global ztmjfonbjb
       valid_lft forever preferred_lft forever
    inet brd scope global ztmjfonbjb
       valid_lft forever preferred_lft forever
    inet6 fd80:56c2:e21c:2467:3d99:93c8:3050:8646/88 scope global 
       valid_lft forever preferred_lft forever
    inet6 fe80::3caf:14ff:fe4c:6484/64 scope link 
       valid_lft forever preferred_lft forever
grant@pihole:~ $ ping
PING ( 56(84) bytes of data.
64 bytes from icmp_seq=1 ttl=64 time=0.139 ms
64 bytes from icmp_seq=2 ttl=64 time=0.104 ms
64 bytes from icmp_seq=3 ttl=64 time=0.140 ms
64 bytes from icmp_seq=4 ttl=64 time=0.145 ms
--- ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 120ms
rtt min/avg/max/mdev = 0.104/0.132/0.145/0.016 ms

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