dasHost.exe is causing udp broadcast flood on 22222 or 10004 ports...

Anonymous

Hi i have problem with Device Association Framework Provider Host..

I checked das host is running from right place C:\Windows\System32

Its signed by ms.

How to stop it? It is hundreds broadcast connections per miute..

System is updated, antivirus is working.

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Anonymous

2025-03-20T13:32:40+00:00

Use your Firewall to block the 3 ports its broadcasting on. Try it on 1 computer to make sure performance is not affected first. It's wild that Microsoft has not addressed this in 6 months.
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Anonymous

2025-03-21T07:34:05+00:00

2025-02 still
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Anonymous

2025-03-21T15:35:24+00:00

We're in the same, 120 computers and as they've been updated, it's become unsustainable, I have logged 4 broadcasts per second per computer, network stability is clearly in danger, It's incredible that Microsoft hasn't fixed this!

We've disabled the device association service and the broadcasts disappear, but programs that use native Windows printing fail or take forever (Notepad, Paint, Photos...)

We use BitDefender Firewall instead of the Windows one, and not permit drop broadcast...

Any other suggestion?
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Anonymous

2025-03-24T04:17:10+00:00

Can you share how to trigger this issue through Chrome? Thx.
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Anonymous

2025-03-24T07:10:51+00:00

2025-03 update依然有此問題。

但我自己找到重現問題的方法了。

Win11 24H2，當我們大多數軟體按下列印，

若跳出新版的列印畫面，就會產生UDP的封包，

關閉列印畫面不列印，還是會保持在背景。

不一定要Chrome edge 小畫家，只要可以叫出該介面就可以。

隨著開啟次數越多，頻率會越高。

只要能將電腦的列印介面回到舊版，就可以避開此問題復發。

至少我的實驗環境是如此。
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