Hi we notice when we use a mobile phone in data sharing (hotspot) we can’t get more than 2mbs in bandswitch test between 2 peers through zerotier.
The weird part it’s when we use zero tier directly on the phone, access time and band switch is fine I can’t get 20 mbs easily when forcing the traffic through.
Our Setup where i get 2 mbs
Computer with Zerotier → Zflip5 Hotspot in 5G-> 4G/5G network of our provider → Zerotier Network → Mikrotik router with zerotier → Remote server
Those setups work fine (about 40mbs between peers) :
Zflip5 with zerotier → 4G/5G network of our provider → Zerotier Network → Mikrotik router with zerotier → Remote server
Computer with Zerotier → Zflip5 Hotspot connected to a wifi → FIBER network of our provider → Zerotier Network → Mikrotik router with zerotier → Remote server
I try to replace the mirotik zerotier part with a Debian 12 nat setup (https://zerotier.atlassian.net/wiki/spaces/SD/pages/224395274/Route+between+ZeroTier+and+Physical+Networks) and get the same result (2mbs)
I tried also to pimp zerotier client, changing the port and mtu but don’t work either
A colleague has a S20 and get the same result and we get some customer complaints so I don’t think it’s related to the mobile.
Test are done with iperf3 in tcp mode. 3 time in a row
Does someone get the same issue?