Hi,
I have two old WHServers that have been working well for years. My personal computer is running Windows 10. I deliberately chose not to upgrade to Windows 11 because I knew I could no longer use my WHServers. I call the servers HPSTORAGE-ONE and HPSTORAGE-TWO. HPSTORAGE-TWO was turned off to avoid conflicts I had disk issues with HPSTORAGE-ONE so had to rebuild it from scratch using the original disks provided by HP. When it came time to use the connector software, in the past, I was always asked what I wanted to name the server and then I was asked to provide an administrative password. BUT, this time I was not asked for these properties, and essentially I have never been able to connect. So I have turned off HPSTORAGE-ONE, and turned on HPSTORAGE-TWO, and then attempted to connect my personal computer to it using the provided connection software, fully expecting to be able to connect. The software recognized the server's name correctly as HPSTORAGE-TWO (I have to select the radio button labelled: "Find my home server manually"), and even tells me the Password hint information correctly, but at the stage where I am challenged for the Windows Home Server password, the process fails with: "The operation cannot be completed at this time. Please try again later. Bla Bla Bla".
This has never been an issue for me using Windows 10, but Windows 11 users have reported the same issue. My question is: "What has changed with Windows 10 since I last successfully connected to these servers". Windows update occurs from time to time and so the most likely cause must be buried in a Windows update. But what? And how can I undo this change?

Now I have two almost useless WHServers! I can remote desktop to HPSTORAGE-TWO and fiddle with everything. But I can not connect to do backups etc.
Gordon

I am in a similar situation, resurrecting my WHSv1 and attempting to reestablish communication from my Surface that I had working a few years ago. I'll post back here if I get it working again.

Regards,

Paul

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Regards,

Paul

Forum members Ruben Rocha and Lioninstreet go through this in detail in this thread.
viewtopic.php?f=5&t=14639

TLDR:
1) Ensure SMBv1 has not been disabled by an update on your win10 client PC.
2) Make sure you are installing the connector software from the Software/Home Connector Software shared folder on your WHServer
3) Run using the Setup.exe file as the others can have issues with WIn10.

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EX490
WHS v1
E5800
Stock Ram
HGST 1 x 2TB, 3 x 8TB