topic Re: Miracast Issues in Wireless

Miracast Issues

Rigmarole — Mon, 22 Sep 2025 08:03:52 GMT

We have a new business requirement, whereby [ideally] we'd like to have our windows tablets be able to WIN+K (Miracast) to some Samsung/LG TVs around our properties and offices.

This has never really worked, and we've never paid much attention to it, but need to start.

TVs are on the same wifi network / subnet as the client computers. Air Marshall is off (which I've heard can be an issue). We seemingly have no wireless access or L7 policies blocking this. I'm a bit stumped.

Wifi is bridged to the L2, no client isolation policies (that I can see).

I appreciate Miracast isn't the 'best' technology out there, and googling definitely confirms that. But ideally I'd rather not invest in some totally different technology if possible.

Any ideas?

Re: Miracast Issues

aleabrahao — Mon, 22 Sep 2025 11:29:30 GMT

How about deny local lan setting?

https://documentation.meraki.com/MR/Firewall_and_Traffic_Shaping/%27Deny_Local_LAN%27_settings_in_Cisco_Meraki_MR_firewall

Re: Miracast Issues

RWelch-USA — Mon, 22 Sep 2025 16:03:37 GMT

While I am not familiar with this, another forum suggests checking (verifying) Miracast functionality and if it is enabled as a preliminary step and secondary would be to make sure it's running the latest available firmware.

Re: Miracast Issues

CMR — Mon, 22 Sep 2025 23:01:21 GMT

From your post I'm guessing that the TVs are wired and the tablets are using wireless. Is that correct? If so, have you tried connecting a TV wirelessly to the same SSID as the tablets?

I have a wonderful issue where I have a wireless printer and a wireless laptop.

If they are connected to the same SSID with the same subnet then it works
If they are connected to different SSIDs with different SSIDs then it works
If they are connected to different SSIDs with the same subnet, no wireless printing...