Microsoft Wireless Display Adapter only works if I disable firewall

Question

Microsoft Wireless Display Adapter only works if I disable firewall

Joseph White 6

Hi,

The latest Microsoft Wireless Display Adapter 4K will only connect successfully to my laptop (Dell Latitude) if I disable the Windows Firewall.

I've ensured the necessary rules have been enabled in all the firewall profiles. (Pub/Priv/Dom)

Wireless Display (TCP-Out) - Enabled
Wireless Display (UDP-Out) - Enabled

Wireless Display (TCP-In) - Enabled

I'm able to find and initially connect to the device and enter the pin code. However, it will not connect to display the screen. (with firewall enabled)

If I disable the windows firewall I can connect to the Microsoft Wireless Display adapter instantly without issue.

Can anyone please advise?

Danny Burk 0 Reputation points

2025-01-28T18:39:52.7+00:00

I think I found the solution. Add a firewall port unblock for TCP port 7236 ("Out" shouldn't be needed). Let us know if this works.
Johnathan Achuff 0 Reputation points

2026-05-11T07:00:59.6933333+00:00

Found an easy way for me, at least, to allow the app "PPI Receiver App" for the public in the firewall under the directory: "C:\Windows\SystemApps\Microsoft.PPIProjection_cw5n1h2txyewy"

3 answers

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Danny Burk 0 Reputation points

2025-01-28T18:39:52.7+00:00

I think I found the solution. Add a firewall port unblock for TCP port 7236 ("Out" shouldn't be needed). Let us know if this works.
Johnathan Achuff 0 Reputation points

2026-05-11T07:00:59.6933333+00:00

Found an easy way for me, at least, to allow the app "PPI Receiver App" for the public in the firewall under the directory: "C:\Windows\SystemApps\Microsoft.PPIProjection_cw5n1h2txyewy"

Answer 1

Hi

We have the same issue. With Windows Defender for 365 enabled, the WIDI connects, asks to pair and then just displays "Connecting to..." after entering the PIN.

We added firewall rules on the Policy from this site: https://scloud.work/en/microsoft-wireless-display-adapter-not-connecting/?amp=1

Still no change. What we learned is that WIDI does not use ports, it functions on the Network Layer and if there is no other 3rd party involved, allowing WIDI on the firewall should allow the connection.

None of the Microsoft forums or self-help pages are helpful. The device is functional, it works on the IT side using DELL and McAfee (also has a custom rule applied from above link)

A vanilla Defender displays fine, but MDM controlled does not.

Answer 2

Anonymous

Might turn on some logging for the network profile being used then check the logs for blocking.

--please don't forget to upvote and Accept as answer if the reply is helpful--

Anonymous

2022-11-25T13:46:41.917+00:00

Just checking if there's any progress or updates?

--please don't forget to upvote and Accept as answer if the reply is helpful--

Answer 3

Pavel yannara Mirochnitchenko 13,451 MVP

Any solution for this? I have almost the same problem...

Cunningham, Barry 0 Reputation points

2023-03-21T15:19:57.2333333+00:00

I am experiencing the same issues. I had it working on March 9, and then on March 14 it stopped working. Something has changed and I can't figure it out. Even if I turn off the Public Firewall, it still doesn't work. The strange thing is, when I am off the domain it works, while on the domain, either via VPN, WIFI or hardwire, it doesn't connect. I am seeing the drops in the log file even though I have set it to allow all.
Hanru 0 Reputation points

2023-03-22T09:48:38.19+00:00

Same issue here, looking for a solution...
Pavel yannara Mirochnitchenko 13,451 Reputation points MVP

2023-03-23T11:02:52.0133333+00:00

I solved it by creating those windows firewall rules right. There are 2 exe you need to open with TCP protocol.
Cunningham, Barry 0 Reputation points

2023-03-23T14:30:13.8533333+00:00

What are the two exe files that need to be opened. I know of the WUDFHost.exe.
Pavel yannara Mirochnitchenko 13,451 Reputation points MVP

2023-03-24T09:35:36.3+00:00
Pavel yannara Mirochnitchenko 13,451 Reputation points MVP

2023-03-24T09:37:13.14+00:00

@Cunningham, Barry tell if that will workout for you then.
Cunningham, Barry 0 Reputation points

2023-03-27T14:12:56.4633333+00:00

@Pavel yannara Mirochnitchenko I tried that, still no luck. I attached a couple screen shots. First is the policies I created, the second is from the Public Firewall log. Maybe I did something wrong. I am getting these drops.
Pavel yannara Mirochnitchenko 13,451 Reputation points MVP

2023-03-27T16:03:28.3533333+00:00

If you turn off firewall down, will it work then?
Cunningham, Barry 0 Reputation points

2023-03-27T16:06:50.5333333+00:00

When I first discovered this issue, I was able to disable the public firewall and it would work. Most recently, I tried that, and it wouldn't work. I know something on our domain is blocking it. I can get it to work if I am offline, but once I connect to the domain, it drops.
Pavel yannara Mirochnitchenko 13,451 Reputation points MVP

2023-03-28T07:07:51.2133333+00:00

From FW ADvanced, in mmc console you have Firewall view UNDER MONITORING which actually reviews all active rules. When you connect, try to monitor, is there any additional rule added there and if you disconnect, it disappears. Also the reason might be, that your AD has GPO which prevents this to work, so try to locate and identify any GPOs which contains some firewall rules (because you now told that if you disconnect, it works). Maybe you have a conflict?
Mark Taylor 446 Reputation points

2023-05-15T12:52:26.5933333+00:00

me too

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Microsoft Wireless Display Adapter only works if I disable firewall

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