Windows 10: LAN speed is being throttled somehow.

I have found a problem trying to stream 4K video from my PC to my TV. The video is stuttering badly when played. I have played the video directly from a HDD via the USB with no problem, so it's not the video file or the TV.

The network is Ethernet hard cable, not Wifi, so I bypassed everything and connected the cable from the router directly to the TV and there was still stuttering. So the video signal route is from PC to router to TV, all cable.

All cables are newly replaced with Cat 6. The router is an Asus RT-A66RU gigabit. I wondered if the on board network in the PC was faulty so it now has a Realtek PCI GbE card, also 1Gbps.

I have also tried the TV on Wifi and as expected, the stuttering was even worse.

Am I right in thinking the problem is looking like the computer, even though the video plays perfectly on the monitor? Belarc Advisor confirms the new network card is up and the Intel on-board is down. It is looking like there is something wrong with the PC network interface, and that is where I am lost, hence this post.

I hope one of you guys can suggest an answer.

Just in case it matters, my PC is:
3.40 gigahertz Intel Core i7-3770
16356 Megabytes Usable Installed Memory
W10 64

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:)

 

Good LAN party games?

Most of my suggestions have already been listed.

However, I found Swat4 to actually be a pretty fun LAN game, especially at smaller LAN parties.

 

Overclocking / Undervolting guide for Vega 56 or 64?

Here's a quick laundry list:

List of software to use for overclocking and testing
Examples:
Wattman (and how to find and use it, like an overview, including profiles)
Unigine Valley or Heaven (use this for quick testing while changing settings in Wattman and checking for stability / artifacts) ...just suggesting this
How to monitor cores / mem speeds and temps during testing (I've seen screen overlays, and others using GPUz)

Step-by step overclocking in Wattman
Fan speeds
Power limit
Temp limit
Voltages
Core speeds
Memory speeds

 

LAN Network Slow speeds


update, problem fix with the following. Thanks 100MB/s on large files