Unable To Connect Remote Desktop from W-XP to W10

[Hansoon]

Hi guys,

I would like to connect with remote desktop from W-XP to W10, but it doesn't work. Opposite W10 to XP works fine. Are there any limitations, or am I doing it wrong?

This XP computer is for safety reasons NOT connected to the Internet, otherwise I could use TeamViewer. TeamViewer using only local LAN doesn't work either.

Hans

[KenB]

[slimslob]

Re: Unable To Connect Remote Desktop from W-XP to W10

On the XP are you logged in as an administrator and does that administrator has a password?

Is it XP Professional ?

[BillyCarpenter]

Re: Unable To Connect Remote Desktop from W-XP to W10

Hi guys,

I would like to connect with remote desktop from W-XP to W10, but it doesn't work. Opposite W10 to XP works fine. Are there any limitations, or am I doing it wrong?

This XP computer is for safety reasons NOT connected to the Internet, otherwise I could use TeamViewer. TeamViewer using only local LAN doesn't work either.

Hans

Am I understanding correctly that you're wanting to remote into a PC that is on your local network? I would think that is obviously the case since the XP computer isn't connected to the internet. What security concerns do you have?

[Hansoon]

Re: Unable To Connect Remote Desktop from W-XP to W10

On the XP are you logged in as an administrator and does that administrator has a password?

Is it XP Professional ?

Yes and yes.

[Hansoon]

Re: Unable To Connect Remote Desktop from W-XP to W10

Am I understanding correctly that you're wanting to remote into a PC that is on your local network? I would think that is obviously the case since the XP computer isn't connected to the internet. What security concerns do you have?

Billy I don't have any security issues, but in XP it says:

"The remote computer requires network level authentication" or WTTE

So obviously XP does not have NLA or so...., though it's XP-Professional

Hans

[slimslob]

Re: Unable To Connect Remote Desktop from W-XP to W10

You may have to install a third party application.

[KenB]

Re: Unable To Connect Remote Desktop from W-XP to W10

Check this link out. It may help:

Attention Required! | Cloudflare

[techsxge]

Re: Unable To Connect Remote Desktop from W-XP to W10

Are both Windows Versions correctly licensed? Do you have Pro verison for both? Activated Remote Access on both machines?

There should be no other setting needed.

Others have mentioned to deactivate NLA, you can do it my test showed you dont have to:
Bild_2023-10-16_105630301.jpg

[eddies]

Re: Unable To Connect Remote Desktop from W-XP to W10

Hi guys,

I would like to connect with remote desktop from W-XP to W10, but it doesn't work. Opposite W10 to XP works fine. Are there any limitations, or am I doing it wrong?

This XP computer is for safety reasons NOT connected to the Internet, otherwise I could use TeamViewer. TeamViewer using only local LAN doesn't work either.

Hans

Step 1: Log in as an admin

You can use any account that has local administrative rights.


Step 2: Check for update compliance

For Windows XP to be able to use NLA, it must first be updated to SP3. Additionally, I suggest installing the RDP v.7 update as well.


Step 3: Open the registry editor

Run regedit as Administrator.


Step 4: Navigate to and modify the registry keys

There are two keys to change. The first is located at:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Lsa
You are going to modify the key named 'Security Packages' Add 'tspkg' to the listing of security packages. Do not remove any packages.
The second key is located at:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\SecurityProviders
You are going to modify the key named 'SecurityProviders' Add 'credssp.dll' to the listing of Security Providers.
Close regedit.


Step 5: Restart the computer.

After the restart is complete. Test the NLA functionality by attempting to RDP to a server that only accepts RDP connections from machines that use NLA.

[Hansoon]

Re: Unable To Connect Remote Desktop from W-XP to W10

Step 1: Log in as an admin


You can use any account that has local administrative rights.


Step 2: Check for update compliance


For Windows XP to be able to use NLA, it must first be updated to SP3. Additionally, I suggest installing the RDP v.7 update as well.


Step 3: Open the registry editor


Run regedit as Administrator.


Step 4: Navigate to and modify the registry keys


There are two keys to change. The first is located at:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Lsa
You are going to modify the key named 'Security Packages' Add 'tspkg' to the listing of security packages. Do not remove any packages.
The second key is located at:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\SecurityProviders
You are going to modify the key named 'SecurityProviders' Add 'credssp.dll' to the listing of Security Providers.
Close regedit.


Step 5: Restart the computer.


After the restart is complete. Test the NLA functionality by attempting to RDP to a server that only accepts RDP connections from machines that use NLA.

Thanks, unfortunately didn't work.

Hans

[rthonpm]

Re: Unable To Connect Remote Desktop from W-XP to W10

100% not the answer... RDP and SMB have nothing to do with each other.

Part of the issue is a series of security hardening updates that Microsoft has made since XP went end of life.

Are you trying to connect via a hostname or IP as both methods use a different authentication mechanism, however both Kerberos (hostname) and NTLM have been hardened. You may want to confirm if TLS 1.0 is enabled on the Windows 10 machine as it may just be trying to use a stronger cipher set than the XP box can negotiate.

Your best bet may be, if possible, to virtualise the XP system and access it through the hypervisor's console. Of course, if it's connected to physical hardware of some kind that throws that idea out.

[techsxge]

Re: Unable To Connect Remote Desktop from W-XP to W10

100% not the answer... RDP and SMB have nothing to do with each other.

Part of the issue is a series of security hardening updates that Microsoft has made since XP went end of life.

Are you trying to connect via a hostname or IP as both methods use a different authentication mechanism, however both Kerberos (hostname) and NTLM have been hardened. You may want to confirm if TLS 1.0 is enabled on the Windows 10 machine as it may just be trying to use a stronger cipher set than the XP box can negotiate.

Your best bet may be, if possible, to virtualise the XP system and access it through the hypervisor's console. Of course, if it's connected to physical hardware of some kind that throws that idea out.

Atleast with my test windows xp vm upgraded to SP3, i can confirm that the rdp works. When using thip address i dont even have to disable NLA. Shouldnt this be the other way around?

[Hansoon]

Re: Unable To Connect Remote Desktop from W-XP to W10

Atleast with my test windows xp vm upgraded to SP3, i can confirm that the rdp works. When using thip address i dont even have to disable NLA. Shouldnt this be the other way around?

.
XP to W10?

W10 to XP is working very well since long without any corrections had to be made. Just activate RDP with one click, but the opposite direction does not work whatever I do and that's what I need too. Reason is, that we have a very old but very good inventory software that works only with XP. This computer is in one of our warehouses, and it would be very convenient if it can be used too to RDP in the opposite direction to our main computers in the remote office.

An update to the inventory software would cost, including adapting old to new, around 10,000 Euro which is too much for this purpose. It runs with MSDE SQL whatever, software in the background. All attempts to lift it to higher Windows operating systems failed. That MSDE SQL server wants XP, nothing else. Virtual XP doesn't work either. It is not accepting that damned MSD-SQL thingy.

I could of course put another W10 computer beside the XP one overthere, but that is against my technical pride.......

Hans

[techsxge]

Re: Unable To Connect Remote Desktop from W-XP to W10

.
XP to W10?

W10 to XP is working very well since long without any corrections had to be made. Just activate RDP with one click, but the opposite direction does not work whatever I do and that's what I need too. Reason is, that we have a very old but very good inventory software that works only with XP. This computer is in one of our warehouses, and it would be very convenient if it can be used too to RDP in the opposite direction to our main computers in the remote office.

An update to the inventory software would cost, including adapting old to new, around 10,000 Euro which is too much for this purpose. It runs with MSDE SQL whatever, software in the background. All attempts to lift it to higher Windows operating systems failed. That MSDE SQL server wants XP, nothing else. Virtual XP doesn't work either. It is not accepting that damned MSD-SQL thingy.

I could of course put another W10 computer beside the XP one overthere, but that is against my technical pride.......

Hans

In my testing I was able to go in both directions without any issues. Maybe you are not on SP3? Or there are firewall rules in place that block the connection.