Video is not streaming to browser from remote network

[rgov]

Describe the bug
Streaming video across Tailscale and the Internet to my browser is not working. Streaming video to another system on the PiKVM's local network is working.

I have a PiKVM attached to a system in a remote location. The PiKVM is connected to the Internet and is running Tailscale.

When I try to access to PiKVM stream over Tailscale, I get no video output in either WebRTC or HTTP streaming modes. I do get a single frame if I use the "Screenshot" function.

If I access a second system on the same network as the PiKVM, and pull open the PiKVM web UI on that system, I do see the target system's video output. (Note in this case I am bypassing Tailscale and use TeamViewer.)

So it seems to be some issue either with the latency of streaming over the Internet, or the use of Tailscale, or both.

I see no errors in my browser console. I do see in the websocket history that there are only a few "binary frames" (presumably video frames) being sent, but the rest of the traffic is just streamer_state packets -- the server seems to stop sending video frames.

Desktop:

• OS: macOS
• Browser: Safari
• Version: 14.4
• VNC client: None

PiKVM info:

• Raspberry Pi board version: RPi CM 4
• PiKVM platform: V4 Mini
• Video capture type: (as above)
• KVMD version:

  kvmd 3.329-1
  kvmd-fan 0.30-1
  kvmd-oled 0.27-1
  kvmd-platform-v4mini-hdmi-rpi4 3.333-1
  kvmd-webterm 0.48-1
  

• uStreamer version: ustreamer 6.11-1
• Linux kernel: Linux pikvm 6.6.21-4-rpi #1 SMP Wed Mar 13 20:36:42 UTC 2024 armv7l GNU/Linux

[rgov]

I am able to access the video stream over TigerVNC.

[arch1mede]

Hi, please join Discord to discuss further, please mention this issue when you join.

[mdevaev]

This is clearly not a bug, but an installation problem, please use discord for support (if you haven't done it yet)