[COMPAT] OLED55CXPUA video works with wifi, does not work with Ethernet

[odracirnumira]

Basic information

• Device model: OLED55CXPUA
• Firmware version: 03.23.25
• webOS version: 5.2.3-290910
• Moonlight version: 0.9.6
• Is audio working: Yes
• Is video working: No
• Is input working: Yes

Description

I'm facing a weird issue. I have Moonlight installed on my OLED55CXPUA TV, and everything works fine if the TV is connected to my local network via wifi.

However, if the TV is connected to my network via Ethernet, the video signal does not work well. More specifically, when I start say Steam via Moonlight, I get maybe one second of proper video signal on the TV, but then after that the video signal freezes. Audio and input work just fine, but video does not. More interestingly, as I play games I get video signal working back for a second at random times, just to stop working again. It's kind of difficult to describe because the behavior seems very erratic. A pattern I've noticed though is that when the screen changes significantly (for instance, when you open a menu or when you start a new game), you get the video signal working for that one second I've mentioned above, so maybe that piece of information can be used as a clue to track this down.

I've tried multiple resolutions as well as multiple video encoders, but it does not make a difference.

Happy to provide logs if you guys point me to instructions on how to do so.

[raeldor]

This is very interesting, as I have a similar issue when I also get a single frame and then it freezes. My TV is also connected via ethernet. If this really is a network adapter issue then this could be a big clue to finally get this fixed.

[eclarke12]

I can confirm I had the same experience on my 65C1: on ethernet I would get about a frame or two of the stream then it would die. On wifi, no issues.

I have my Moonlight output set to 4k120 HDR 60mbps. Let me know if there's anything else I can add.

[michielproce]

I've had similar issues with my B8 OLED. I fixed it by forcing the network adapter of my host PC to use 100mbit full duplex while streaming.

[Bruffandino]

I have the same issue on a A1 OLED. Forcing 100mbit on the host's ethernet adapter fixed the issue for me as well. Interestingly this also fixed frame drops I was experiencing while connecting to the same host over wifi. (wifi 5Ghz on TV connected to a wireless router, host connected by ethernet to the same router)

[jcabello7]

Same issue here with a CX OLED. Using default ethernet only works forcing 100mbps (full duplex) on host. Using USB ethernet adapter only works forcing 100mbps (full duplex) on host. Using wifi AC works fine. There are any way to get it working without forcing 100mbps on the host?