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ID event 40960 and 40961 RRS feed

  • Question

  • Good evening, i have a lot of desktop pc with o.s. windows xp that have some connectivity problems (pc are in domain). I have see in eventviewer that event error: event id 40960 and 40961. I've tried to connect to internet but it fault and then i can't use SAP system. On the server there are't any errors. However i can send email with Outlook (Exchange server). to resolve this issues i must reboot the machine e then all working correct.

    Event id 40960: The Security System detected an attempted downgrade attack for server <server name>. The failure code from authentication protocol Kerberos was "<error message> (<hex error code>)".

    Event id 40961: The Security System could not establish a secured connection with the server <server name>. No authentication protocol was available.

    Can you help me please?

    Thank you in advance for your support.

    Tuesday, May 24, 2011 6:56 PM