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Post navigation Server Manager Never Loads → 6 thoughts on “Log Message: Kerberos client received a KRB_AP_ERR_MODIFIED error from the server ” Michael August 6, 2015 at 9:12 pm So when Do not copy-paste the command-line code to your environment. This can occur when the target server principal name (SPN) is registered on an account other than the account the target service is using. Client then sends over its TGT back to the KDC and gets a brand spanking new service ticket - which contains information that both the Client and Server will be able http://jvmwriter.org/error-from/krb-ap-err-modified-error-from.html

If you map these to more accounts/servers or do not map those correctly you get the error. The SBS server was the only DC in the domain. This error can also happen if the target service account password is different than what is configured on the Kerberos Key Distribution Center for that target service. x 10 Michael Papalabrou This problem has occurred after bringing up a new machine to replace an old one that failed, without first removing the old computer account from the domain.

The Kerberos Client Received A Krb_ap_err_modified Error From The Server Domain Controller

Client sends the Service Ticket over to the Server to get authenticated to its resources.It seems like a step is being missed here, doesn't it? Full Messages:1. The target name used was .

Do this on each node in the CCR Cluster: HKLM\SYSTEM\CurrentControlSet\Services\RemoteRegistry\Parameters\DontUseSecureNPForRemote x 225 Robert Pearman This error is about identically named accounts - and appears to be quite popular. If you choose to participate, the online survey will be presented to you when you leave the Technet Web site.Would you like to participate? Sieve of Eratosthenes, Step by Step Compute the Eulerian number USB in computer screen not working Does flooring the throttle while traveling at lower speeds increase fuel consumption? Resetting The Secure Channel Pw Of A Broken Domain Controller When i deleted it from AD the error was gone.

The reason everything worked fine initially was because that port had been left disconnected until 2 days ago when I configured the correct IP address. The Kerberos Client Received A Krb_ap_err_tkt_nyv Error From The Server Host First, check and make sure the company's domain is set to allow Dynamic Updates in the DNS Console (Right-click the main domain zone - it's right in the General tab). Reply ↓ wpadmin Post authorFebruary 19, 2016 at 6:26 pm I wish I could have investigated this a bit further but that sounds pretty close to what I saw. Turns out, there's another step that occurs on a somewhat regular basis between all servers and workstations joined to a domain.

x 224 Bernhard Moritz In our case it was an entry in the etc/hosts file. The Target Name Used Was Cifs Best of luck. Configure delegation trust for the Application Pool account, Frontend- and SQL servers Configure http Service Principal Names (SPN) for the Frontend server NETBIOS-name and FQDN and bind it only to the x 77 Jason Felix This problem can be caused by an incorrect PTR entry for the offending workstation or server in Reverse Lookup Zones under DNS.

The Kerberos Client Received A Krb_ap_err_tkt_nyv Error From The Server Host

Duplicate SPNs will break things. http://serverfault.com/questions/646840/kerberos-event-4-servername-showing-username This indicates that the password used to encrypt the kerberos service ticket is different than that on the target server. The Kerberos Client Received A Krb_ap_err_modified Error From The Server Domain Controller Interesting - something was going on with the account for ceo-computer$ I wonder if the machine is online and resolves to an IP address? This Indicates That The Target Server Failed To Decrypt The Ticket Provided By The Client Download a copy of the IIS 6.0 resource kit.

When you say you corrected DHCP what was it that you had to do to correct DHCP? navigate here So I cleared the DNS cache of the DNS server, and used ipconfig /flushdns to clear the resolver cache on the domain controller and PC-BLA10, and the problem disappeared. We have tried different users and it changes the above part of the error message. If so, the ticket is issued for the server in the client's domain and it cannot be decrypted by the recipient server in the target domain". The Kerberos Client Received A Krb_ap_err_modified Domain Controller

This occurred because of a mistake during a branch rollout. So how do you troubleshoot this issue? Please contact your system administrator. Check This Out The problem is that the error can come from in a couple of reasons.

I have 1 non dc server which met the same issue. The Kerberos Client Received A Krb_ap_err_modified Error From The Server Sql Connection -> Bind. Check for multiple mappings with the command: ldifde -d "dc=domain,dc=local" -r "servicePrincipalName=http*" -p subtree -l "dn,servicePrincipalName" -f output.txt   The http/NETBIOS and http/FQDN must only appear on one of the objects.

I then ran a ďnetdiag /fixĒ from the Windows 2003 support tools.

Some googling later I found 2 remarks that were useful. Here are some related links below that might be helpful to you: The kerberos client received a KRB_AP_ERR_MODIFIED error Between DC after Primary DC migrated to VM http://social.technet.microsoft.com/Forums/windowsserver/en-US/8c9a71d8-7490-47f4-b0e4-69695b0aa3a7/the-kerberos-client-received-a-krbaperrmodified-error-between-dc-after-primary-dc-migrated-to-vm?forum=winserverDS Kerberos KRB_AP_ERR_MODIFIED error You can find information about this in Microsoft knowledgebase article KB244474 (http://support.microsoft.com/kb/244474/en-us)

  Other problems with Kerberos You can have other error-messages in your Windows eventlog, and please look all Reset Secure Channel Password Domain Controller After renaming a server and setting up a new one with the same name the host-entry was not updated and so the new server pointed to the IP address of the

Marked as answer by Amy Wang_Microsoft contingent staff, Moderator Monday, October 21, 2013 1:10 AM Edited by Amy Wang_Microsoft contingent staff, Moderator Monday, October 21, 2013 1:11 AM Tuesday, October 15, x 204 Anonymous In my case, I was receiving this error on a domain controller. I would also reccomend to configure your DHCP to dynamically update records, you will need to provide credentials to do this. this contact form x 67 EventID.Net As per Microsoft: "Kerberos cannot authenticate the Web program user because the server cannot verify the Kerberos authentication request sent by the client.

Commonly, this is due to identically named  machine accounts in the target realm (DOMAIN.LOCAL), and the client realm.   Please contact your system administrator. What this means is that the What are the legal consequences for a tourist who runs out of gas on the Autobahn? Open the file and search for all occurrences of the name list in the error 4 (omitting the $). Edited by Lex_T Tuesday, September 30, 2014 8:01 AM Tuesday, September 30, 2014 7:49 AM Reply | Quote 0 Sign in to vote I encountered a similar problem but in my

Remove the account from ADUC. - Note the error mentions both the DC and a client - this error relates to two clients sharing the same IP and both having valid We configured all our DHCP servers to register clients, using a common domain account. Pool identity. English: This information is only available to subscribers.

Note: The computer account is identified in the event log message. What is the fix? Therefore I wrote this article to summarize the problem and possible solutions to the error. If you find some, identify which is the current correct A record and IP.