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    Windows 10 Cumulative Update for 1709 KB4103727 cause RDP to not connect

    IT Discussion
    dash win10 nightmare rdp credssp
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    • DashrenderD
      Dashrender
      last edited by Dashrender

      I had a user who installed the typical monthly updates this morning, after which she couldn't RDP into our Windows 2016 server. She RDP'ed into it just fine yesterday (I know I was the one who did it from her computer), but after the updates, it gives the following:

      https://i.imgur.com/PSE6oln.png

      This is just an FYI right now. Still digging into it.

      1 Reply Last reply Reply Quote 2
      • DashrenderD
        Dashrender
        last edited by

        Disabling Network Level Authentication on the server in question allowed the connection to work (though with self signed cert complaints).

        https://i.imgur.com/dOdD7wr.png

        pmonchoP 1 Reply Last reply Reply Quote 0
        • DustinB3403D
          DustinB3403
          last edited by

          I remember this being an issue some years ago as well.

          black3dynamiteB 1 Reply Last reply Reply Quote 0
          • black3dynamiteB
            black3dynamite @DustinB3403
            last edited by

            @dustinb3403 said in Windows 10 Cumulative Update for 1709 KB4103727 cause RDP to not connect:

            I remember this being an issue some years ago as well.

            Before Remmina app got updated, I had to disable NLA awhile ago.

            1 Reply Last reply Reply Quote 0
            • DashrenderD
              Dashrender
              last edited by

              FYI - Windows Server 2016 KB4093137 (2018-04 Update) and KB4103723 (2018-05 Cumulative Update) are not installed on the server yet.

              Will reboot tonight to see if that fixes this?

              dbeatoD 1 Reply Last reply Reply Quote 1
              • dbeatoD
                dbeato @Dashrender
                last edited by

                @dashrender said in Windows 10 Cumulative Update for 1709 KB4103727 cause RDP to not connect:

                FYI - Windows Server 2016 KB4093137 (2018-04 Update) and KB4103723 (2018-05 Cumulative Update) are not installed on the server yet.

                Will reboot tonight to see if that fixes this?

                I have it installed and will let you know if users are having issues.

                1 Reply Last reply Reply Quote 0
                • wrx7mW
                  wrx7m
                  last edited by wrx7m

                  I just ran into something similar with Windows 10 connecting to 2012 R2 RDG and having the remember credentials checked. It would not let anyone login after it remembered their creds.

                  It requires a registry entry for the client. Not sure if it would benefit you, but here it is.

                  reg.exe Add "HKCU\Software\Microsoft\Terminal Server Client" /V "RDGClientTransport" /T REG_DWORD /D "1"

                  DashrenderD 1 Reply Last reply Reply Quote 1
                  • DashrenderD
                    Dashrender @wrx7m
                    last edited by

                    @wrx7m said in Windows 10 Cumulative Update for 1709 KB4103727 cause RDP to not connect:

                    I just ran into something similar with Windows 10 connecting to 2012 R2 RDG and having the remember credentials checked. It would not let anyone login after it remembered their creds.

                    It requires a registry entry for the client. Not sure if it would benefit you, but here it is.

                    reg.exe Add "HKCU\Software\Microsoft\Terminal Server Client" /V "RDGClientTransport" /T REG_DWORD /D "1"

                    Not sure if it's related, but I deleted the Default.RDP file from my documents and that didn't fix it either. The posts I got that suggestion said it was related to remembering creds.

                    1 Reply Last reply Reply Quote 0
                    • dbeatoD
                      dbeato
                      last edited by

                      Saw this today:

                      https://www.askwoody.com/2018/problems-with-credssp-updates-cve-2018-0886-breaking-rdp-connections/

                      wrx7mW scottalanmillerS 2 Replies Last reply Reply Quote 2
                      • wrx7mW
                        wrx7m @dbeato
                        last edited by wrx7m

                        @dbeato said in Windows 10 Cumulative Update for 1709 KB4103727 cause RDP to not connect:

                        Saw this today:

                        https://www.askwoody.com/2018/problems-with-credssp-updates-cve-2018-0886-breaking-rdp-connections/

                        I had been meaning to go back and look at the article from April referencing the credssp cve, but haven't had a chance. According to what others are saying there, any cumulative update for the server from March 2018 and later should have the patch and will allow connections.

                        1 Reply Last reply Reply Quote 1
                        • scottalanmillerS
                          scottalanmiller @dbeato
                          last edited by

                          @dbeato said in Windows 10 Cumulative Update for 1709 KB4103727 cause RDP to not connect:

                          Saw this today:

                          https://www.askwoody.com/2018/problems-with-credssp-updates-cve-2018-0886-breaking-rdp-connections/

                          Yup, hit us today for sure.

                          1 Reply Last reply Reply Quote 0
                          • wrx7mW
                            wrx7m
                            last edited by wrx7m

                            Here is the post that contains more specific information on the patch and necessary configurations
                            https://www.askwoody.com/2018/patch-lady-tracking-some-post-release-issues/
                            and straight from Microsoft-
                            https://support.microsoft.com/en-us/help/4093492/credssp-updates-for-cve-2018-0886-march-13-2018

                            1 Reply Last reply Reply Quote 2
                            • pmonchoP
                              pmoncho @Dashrender
                              last edited by

                              @dashrender

                              What version of RDP do you have? I don't have that option.

                              This is what I have.

                              0_1525972523391_rdp.PNG

                              1 Reply Last reply Reply Quote 0
                              • DashrenderD
                                Dashrender
                                last edited by

                                You change it on the device you're connecting to, not the PC you're connecting from.

                                pmonchoP 1 Reply Last reply Reply Quote 1
                                • pmonchoP
                                  pmoncho @Dashrender
                                  last edited by

                                  @dashrender
                                  Thanks.

                                  1 Reply Last reply Reply Quote 0
                                  • scottalanmillerS
                                    scottalanmiller
                                    last edited by

                                    I tested on 2012 R2, it worked there.

                                    DashrenderD 1 Reply Last reply Reply Quote 0
                                    • DashrenderD
                                      Dashrender @scottalanmiller
                                      last edited by

                                      @scottalanmiller said in Windows 10 Cumulative Update for 1709 KB4103727 cause RDP to not connect:

                                      I tested on 2012 R2, it worked there.

                                      What worked where?

                                      scottalanmillerS 1 Reply Last reply Reply Quote 0
                                      • scottalanmillerS
                                        scottalanmiller @Dashrender
                                        last edited by

                                        @dashrender said in Windows 10 Cumulative Update for 1709 KB4103727 cause RDP to not connect:

                                        @scottalanmiller said in Windows 10 Cumulative Update for 1709 KB4103727 cause RDP to not connect:

                                        I tested on 2012 R2, it worked there.

                                        What worked where?

                                        The fix.

                                        1 Reply Last reply Reply Quote 0
                                        • black3dynamiteB
                                          black3dynamite
                                          last edited by

                                          The fix also fixes virtual machine connection too.

                                          1 Reply Last reply Reply Quote 0
                                          • A
                                            aginformatica
                                            last edited by

                                            Hello
                                            in a network with a 2012r2 server after the update to the last customer relationship win10 home / prof. This error appears:
                                            can not find the "server01" computer. It is possible that "server01" does not belong to the specified network. Verify the computer name and the domain to which you are trying to connect.
                                            which instructions can I follow, in addition to those listed in the discussion as well as update the server, to solve the problem?
                                            thank you. regards.0_1528649933636_IMG_6474.JPG

                                            black3dynamiteB 1 Reply Last reply Reply Quote 0
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