Windows 10: Remote Computer selectively unreachable

I run my Mailserver on a remote machine and access it for maintenance using VNC

Yesterday I needed to make some space on its C: drive and moved files to another local drive on the Mailserver.
Today the Mailserver program is not running and I cannot access the machine.

I can ping it both with the IP address and its name.
I also got into its file structure using explorer (net use etc)
NB: Using explorer I reinstated the files I had moved (Mostly Thunderbird files from the Roaming folder.
(I stopped using Thunderbird a couple of year ago).

But I cannot restart it using shutdown (which is how I normally deal with restart problems).

Using the graphical interface I get "Failed to connect to registry".
Using a command line I get "No more threads can be created in the system.(164)"
(That may be because I've tried too many times and each time it has failed).

I cannot even access the Mail Program via a browser using the Mailserver login credentials to allow use of Web-Mail.
The browser just times out using both the IP address and the name.

Remote Desktop stopped working ages ago that's why I use VNC
The fact that Internet Explorer won't connect suggests a DNS problem but since I can ping that rules it I out I think.

Has anyone had a similar experience and managed to get things going again?

Tomorrow evening someone will be able to restart the machine but meanwhile I am email-less!

Any help greatly appreciated.

Jean

:)

 

Remote Desktop can't connect to the remote computer

We suggest that you disable any security program on your computer and check if it resolves the issue.

NOTE: Antivirus software can help protect your computer against viruses and other security threats. In most cases, you shouldn't disable your antivirus software. If you have to temporarily disable it to install other software, you should re-enable it as
soon as you're done. If you're connected to the Internet or a network while your antivirus software is disabled, your computer is vulnerable to attacks.

Then follow the steps below to ensure remote desktop is enabled:

• Click Start.
• Click on File Explorer.
• Right-click This PC.
• Select Properties.
• Click Remote settings in the upper left hand corner.
• Ensure the option Allow remote connection to this computer and
  Allow Remote Assistance connection to this computer is selected.
• Click Apply and OK.
• Reboot the PC for the changes to take effect.

Let us know the result.

 

How to remove "HP Connected Remote" as a sign in account ?

Hi Dave,

Thank you for writing your query in Microsoft Community.

• 
  Is your computer connected to a domain network?
  

HP Connected Remote is an app that comes preinstalled on select Windows HP computers. I would suggest you to follow the below steps and check if it resolves this issue.

• On the Windows 10 Start screen, type hp connected remote.
• Click HP Connected Remote from the Apps search results.
• Click Settings, and make sure Enable HP Connected Remote is turned On.

Reply us back with the status of this issue. We will be glad to assist you.

 

Can I start a computer remotely?


It occurs to me that maybe I'm working on the wrong computer. Possibly the remote computer is configured properly and the problem is with the computer sending the wake-up call.

Can someone recommend a step-by-step protocol for pinging or sending a wake up command to the remote computer?

Thanks