Why is my network messed up after update to windows 11 24H2

I will tell you all why your network is messed up, because Microsoft designed Windows 11 that way. They don't want you using computers that worked for decades, like the two I have to function with Windows 11, With the Network so screwed up, they think they can force you to replace all of your devices for newer ones. They say they are updating software, ie Windows 10 to Windows 11, but all they really do, is move stuff around, change the name slightly, locate it in a different catagory to make it difficult to find, and then they put bugs in it that won't allow you to use your system the way you want to, unless you go buy all new systems, which by the time you get them up and working, will be obsolete and have to be replaced over an over.

I have a Dell 4600 running Windows XP and a computer running Windows Vista, both function as they have always done, only now without support, but neither has ever been hacked, I use them for storage mostly. I have tow docking stations with over 30 T of Storage. I capture and edit movies on the Dell and store them on the docking statiions. I have an HP with windows 10 that connects easily on my Home network to the two OLD computers but this one a newer HP laptop, that did connect until I was force to upgrade to windows 11.

Microsoft has a MONOPOLY, and to keep that MONOPOLY at the top of the heap, they keep putting out new programming, that really isn't new, but with bugs in it to force you to update on a regular basis and spent several hundred dollars for devices and systems that can on connect with similar devices and systems. THEFT by DESIGN.

See

Win11 24H2 Installed, now no network sharing https://www.elevenforum.com/t/win11-24h2-installed-now-no-network-sharing.29035/

especially this -

Computer Configuration, Windows Settings, Local Policies, Security Options
Double click on Microsoft Network Client: Digitally sign communications (always)
Double click on Microsoft Network Client: Digitally sign communications (if server agrees)
Set both of these to "Disabled"
Click on OK.

Please let us know if this helps.

I think you are confused. This thread is about loss of visibility of NAS drives and other computers on a User's local network, not lack of connectivity to the Internet.

Did you enable Netbios in your network connection ?

Control panel > Network and Internet > Network connections
right-click on properties
select Internet Protocol Version 4 (TCP/IPv4) and click Properties
go to the WINS tab and enable NetBios over TCP/IP

click Ok till you exit the network connection.
Restart your PC

When you have a Synology NAS, Enable Windows network discovery to allow file access via SMB in the SMB tab in file services.

did you have to "force" server signing or was "client defined" sufficient on your Synology NAS, as I am experience a similar poroblem after upgrade to 24h2 all 23h2 PCs don't have an issue