8260 wireless adapter - Miracast freezes and sometimes randomly slows down net speed below 1mbps

[ABogn1]

• When I'm casting my screen onto my TV, my wifi connection speed on the tablet I use slows down to between 50-60mbps from 400, however, the real problem is that it frequently drops below 1 or even to 0 for minutes at a time, making it impossible to browse the web and miracast at the same time.
• I'm regularly disconnected from my router when using miracast.
• The connection between my tablet and TV randomly freezes in a strange way, everything on screen becomes unresponsive and I also don't get any sound when this happens, however, the pointer does not freeze, so I'm definitely not disconnected.
• Sometimes small parts of my screen turn pink indicating data loss.

I don't necessarily experience these things at the same time, for all I know, they could even be unrelated.

Things that I've tried so far:

-Updating my wireless adapter driver.

-Updating my bios (just to be sure)

-Turning off RSC

-Disabling power saving for my adapter

-Checking the wireless connection log. There were no errors recorded whatsoever. 

I also tested it with another laptop that has an 8265 adapter, and I got similar results. Managed to reproduce 2/4 problems in a brief amount of time (the internet slowdown and pink patches on the screen).

[AlHill]

Contact Microsoft regarding Miracast support.

Doc

[ABogn1]

I did contact them but they are yet to find out what's causing it. It goes without saying that an OS is necessary for using an adapter so I don't think it's a stretch to ask for help from the adapter's manufacturer regardless of what's causing it. It's also plenty possible that the problem's with the driver.

[AndrewG_Intel]

Hello ABogn1,

Thank you for posting on the Intel® communities.

I was checking this thread and I would like to mention that the information provided by Al.Hill is correct.

It is worth mentioning that Miracast* is no longer supported and support should be addressed to your Original Equipment Manufacturer (OEM, PC-laptop manufacturer) or Microsoft® support, and in the case that a driver issue would be found, the OEM/Microsoft will determine root cause and work internally with Intel.

For more information, please refer to Using Miracast* with Windows 8.1* and Windows® 10

https://www.intel.com/content/www/us/en/support/articles/000023230/emerging-technologies.html

We will proceed to close this inquiry.

Andrew G.

Intel Customer Support Technician

A Contingent Worker at Intel