CredSSP and RDP in Windows 10
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Just ran into this issue today from new Windows updates.
RDP “An authentication error occurred” “This could be due to CredSSP encryption oracle remediation”.
I see that @Dashrender posted about it here as well.
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@scottalanmiller I actually talked to a client having this issue today myself. Now I'm gonna have to keep a mangolassi.it tab open at work all the time at the new place. Such a pain when it's a 3rd party SaaS app. Waiting to hear back from the application provider.
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I feel like this should have been announced or mentioned somewhere on the update before hitting install. I generally read the update description from WU before installing them.
"This will break Remote Desktop client, update your servers first" -
@momurda said in CredSSP and RDP in Windows 10:
I feel like this should have been announced or mentioned somewhere on the update before hitting install. I generally read the update description from WU before installing them.
"This will break Remote Desktop client, update your servers first"We have a user here that does clinic work outside of his job here. The clinic says the issue is on our end (because we applied the update). I told them their servers were out of date. Somehow I'm the asshole.
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I thought I posted about this yesterday?
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@dashrender You did but Search function doesnt work well. I typed in credssp and this one came up, not yours.
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@momurda said in CredSSP and RDP in Windows 10:
@dashrender You did but Search function doesnt work well. I typed in credssp and this one came up, not yours.
That's because I didn't spell that out in my post - the error only "suggests" that it might be the issue.
Disabling NLA on RDP fixed the issue for the time being.
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OK I've updated my post with a few tags.
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What's funny is Scott even posted in my thread, yet still made his own.
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Just went through a work thread on this last night. So annoying.
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Just hit me today as well.
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@bbigford said in CredSSP and RDP in Windows 10:
Just went through a work thread on this last night. So annoying.
Yeah, a little heads up on this would have solved a lot of things.
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Good discussion here as well:
https://www.reddit.com/r/sysadmin/comments/8i4coq/kb4103727_breaks_remote_desktop_connections_over/ -
@dashrender said in CredSSP and RDP in Windows 10:
OK I've updated my post with a few tags.
Can the two posts be merged if they are related?
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@ccwtech said in CredSSP and RDP in Windows 10:
@dashrender said in CredSSP and RDP in Windows 10:
OK I've updated my post with a few tags.
Can the two posts be merged if they are related?
Split, yes. Merged, no.
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@scottalanmiller said in CredSSP and RDP in Windows 10:
@bbigford said in CredSSP and RDP in Windows 10:
Just went through a work thread on this last night. So annoying.
Yeah, a little heads up on this would have solved a lot of things.
Windows 10 - 1709 update ends in xxxx717 if you want to uninstall it on an as-needed basis on desktops (for anything running Home and doesn't have secpol available, or domain joined for the same reason).
Windows 10 - 1803 ends in xxx721.... they all hit on 05/09/18 (my Win10 Pro laptop had that this morning and gave me issues after a reboot... didn't want to modify my local policy but instead just uninstalled and rebooted).
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@scottalanmiller said in CredSSP and RDP in Windows 10:
@ccwtech said in CredSSP and RDP in Windows 10:
@dashrender said in CredSSP and RDP in Windows 10:
OK I've updated my post with a few tags.
Can the two posts be merged if they are related?
Split, yes. Merged, no.
WHAT KIND OF SITE IS THIS!?!?! That's IT I'm GOING BACK TO
Just kidding
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@bbigford said in CredSSP and RDP in Windows 10:
@scottalanmiller said in CredSSP and RDP in Windows 10:
@bbigford said in CredSSP and RDP in Windows 10:
Just went through a work thread on this last night. So annoying.
Yeah, a little heads up on this would have solved a lot of things.
Windows 10 - 1709 update ends in xxxx717 if you want to uninstall it on an as-needed basis on desktops (for anything running Home and doesn't have secpol available, or domain joined for the same reason).
Windows 10 - 1803 ends in xxx721.... they all hit on 05/09/18 (my Win10 Pro laptop had that this morning and gave me issues after a reboot... didn't want to modify my local policy but instead just uninstalled and rebooted).
Also @scottalanmiller , I used this downloadable tool to hide the x721 update for 1803, before uninstalling and rebooting. It had auto-installed later that day.
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This might be useful for some people:
