Hi all. We recently raised our domain functional level to Windows 2008 R2. On June 3, 11 and 15, our Exchange server was inaccessible to users. A reboot resolved the problem. The following events were logged on each of those days -
Event 2114 Process MSEXCHANGEADTOPOLOGYSERVICE.EXE (PID=1504). Topology discovery failed, error 0x80040952 (LDAP_LOCAL_ERROR (Client-side internal error or bad LDAP message)). Look up the Lightweight Directory Access Protocol (LDAP) error code specified in the event description. To do this, use Microsoft Knowledge Base article 218185, "Microsoft LDAP Error Codes." Use the information in that article to learn more about the cause and resolution to this error. Use the Ping or PathPing command-line tools to test network connectivity to local domain controllers. Event 2130 Process w3wp.exe () (PID=2644). Exchange Active Directory Provider could not find an available domain controller in domain xyz. This event may be caused by network connectivity issues or configured incorrectly DNS server. This event may also occur if you have not configured correctly your multiple Active Directory sites. Event 2102 Process MSEXCHANGEADTOPOLOGYSERVICE.EXE (PID=1504). All Domain Controller Servers in use are not responding: dc1.xyz dc2.xyz Searching found hits for 2114 but with other errors and not 2130 and 2102. Any suggestions or pointers would be greatly appreciated! BTW - Today I discovered IPv6 was disabled on the network adapter but not in the registry. Since it doesn't need to be disabled, I've re-enabled. Any chance this is related? Thanks!
