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

In my newly installed windows 11 24h2 system there is this key, but you can try to add it manually and see if it changes the interface of the printing application, for example, in the paint program

What if we do not see that path with in the regedit the farthest i have seen is *HKEY_CURRENT_USER\Software\Microsoft*

I do not see a Print folder.

Hi All,

Thanks for your helpful post. It's worked for me.

• Add reg and restart comp, It's Done.
  [HKEY_CURRENT_USER\Software\Microsoft\Print\UnifiedPrintDialog]
  DWORD 32-bit named "PreferLegacyPrintDialog"1

No more UDP BC Flood.

Kind Regards.

Interesting. However, our users are all local administrators and the problem seems to happen randomly. The registry entry only affects the print dialog from within Edge/Chrome and as most of our users are printing from Edge I see a great reduction in the chatter on 22222. However, as another admin posted, the problem happens when users print from apps, like Excel, Acrobat. It therefore has to be something to do with the new print selector. As you point out, they aren't trying to install a printer, it must be the print dialog that is searching..

By far the biggest broadcasters are those that don't have the registry entry set, It would appear that this entry only affects printing from the browser and doesn't revert the print selection window to the old version in Excel or other apps.

We've continued testing on behalf of Microsoft and have found the issue: When a limited user selects print, the window that opens begins searching for printers on the network, and this is when the flooding occurs indefinitely.

This is the same that happens when you select add a printer in settings, except that the user hasn't selected add a printer, only print.

Therefore, we were able to stop the flooding by creating a GPO that doesn't allow limited users to install printers.