Hello, First time poster here needing some help.

I have a Dell Optiplex 7010 MT and a Microsoft Surface 3, both running Windows 10.

The 7010 is connected by wired Ethernet, as well as by wireless wifi to the same router. The Surface is also connected by wireless wifi to the same router.

I am able to mirror the Surface screen to a year old LG smart TV via Miracast. But I am unable to do the same with the 7010.

In the Surface Display settings, there is a "Connect to a wireless display" option. There is no such option in the 7010 Display settings. This is the only difference I noticed between the two computers. Can this be the cause of the problem?

I also came upon this article (undated), and wonder if the 7010 supports Miracast at all.

https://www.dell.com/support/article/th/en/thbsd1/sln304839/intel-widi-compatibility-needed-for-miracast-to-mirror-a-display-within-windows-10?lang=en

Thanks in advance.