From: nospam@needed.invalid   
      
   On Tue, 12/16/2025 3:25 AM, Fokke Nauta wrote:   
   > On 15/12/2025 22:36, Graham J wrote:   
   >> Fokke Nauta wrote:   
   >>   
   >> [snip]   
   >>   
   >>>> Same Windows Logon username/pw on each device?   
   >>>   
   >>> No.   
   >>   
   >>   
   >> Then nothing will work.  You must have the same Windows Logon username and   
   password on each device   
   >>   
   >>   
   >   
   > On my own laptop I have the same user name and password as on my pc.   
   > But it won't work.   
   >   
   > Fokke   
      
   I have not seen an answer yet, to what AntiVirus programs are used   
   on the un-reachable windows 11 laptops.   
      
   Are you using Windows Defender everywhere, or did you install AVG or AVast   
   to replace Windows Defender ?   
      
   The reason this matters, is some third party AntiVirus programs have   
   their own Firewall.   
      
   In Settings, you can open "Windows Defender Firewall" and there are   
   Inbound Rules that can "blind" one of those Windows 11 laptops,   
   to incoming attempts to connect to the sharing interface.   
      
       control.exe :  Windows Defender Firewall (control panel)    # Quick way to   
   get there.   
      
   In this article, they only address Domain rules, whereas you might   
   have Private network rules for File Sharing on your Firewall.   
      
      https://petri.com/smb-port-445-139-138-137/   
      
   It does not particularly matter absolutely what the rules look like,   
   as you have some "working" laptops and the rules there are examples   
   of what it should look like.   
      
   However, when a third party AV is there, it could look like this.   
      
          Network --- Windows Defender Firewall --- AVG Firewall ---- (file   
   sharing stuff)   
      
   There also seems to be a declaration for the *Wifi* as to whether   
   it is Public (default) or Private (what you want).   
      
       https://superuser.com/questions/1757474/windows-firewall-is-   
   locking-file-sharing-and-ping   
      
   But like the people in that thread, our first assumption is that   
   "it was set up to work", and normally, it takes some tiny amount of   
   effort to break it. Installing a third-party AV, is an effortless way   
   to break things, as an example of how a user can tip over working goods.   
   The AV companies do not care that your evening is spoiled.   
      
     Paul   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)