Tailscale direct throughput limited to 270Mbps using iPerf3 - Troubleshooting steps provided below
WAN 1 = 1Gbps Fiber
Firewall 1 = UXG-PRO
PC 1 = Win11, i7-14700F CPU
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WAN 2 = 1Gbps Fiber
Firewall 2 = UDM (Dream Machine)
PC 2 = Win11, 5800X3D CPU
Running Tailscale Status or Ping shows the public IP and and a DIRECT connection established with less than 5ms of latency. No Relay servers.
When copying a file between computers or running iPerf3 I am getting limited to around 270Mbps.
Further troubleshooting steps I have taken:
- Ran iPerf3 on LAN devices in both networks to verify local NIC speeds - resulted in 950Mbps
- Turned off all IPS/IDS on Dream Machine to validate that it wasn't causing the issue. Disabling DPI, IPS/IDS resulted in the same iPerf3 speeds. (270Mbps)
Open to further ideas or suggestions - I know that I have had much higher speeds with the same network firewalls in the past. Hoping this is purely a software or configuration issue.
Thanks!