Hi. I managed to get my Exchange server up and going and was able to send and receive internal email. I tried to configure the Exchange server and get the MX records set up so that I could send and receive externally. Unfortunately I went by the book and set up a NAT Server (big mistake)! I wanted it to sit between the Internet and the Exchange Server and forward emails into Exchange. But it did not. After changing the IP settings on the 2 servers, it just mucked the whole network up (with its security mad settings) to the extent that the NAT server would not communicate with anything. As the network is live, and becuase I dont have the LIVE time to configure all the security settings (there are other services on the NAT server that were ESSENTIAL for the business), I had to stop the service and remove it.I am now just trying to use the Internet Router's NAT facilities for port forwarding SMTP to the Exchange Server - less impact on the network.I was led to believe this is a reasonable alternative after reading: http://www.petri.co.il/configure_mx_records_for_incoming_smtp_email_traffic.htm (the bit on using a NAT router).Unfortunately the changes I made to the Exchange Server and the MX records now prevent me even accessing the server internally or setting up new email accounts.If anyone can tell me what this error message is about I would appreciate it:Warning:Failed to connect to information store service on the server "SERVER.mydomain.COM". The exception message is "MapiExceptionNetworkError: Unable to make admin interface connection to server. (hr=0x80040115, ec=-2147221227)Diagnostic context: ...... Lid: 10648 dwParam: 0x6D9 Msg: EEInfo: Generating component: 2 Lid: 14744 dwParam: 0x6D9 Msg: EEInfo: Status: 1753 Lid: 9624 dwParam: 0x6D9 Msg: EEInfo: Detection location: 501 Lid: 13720 dwParam: 0x6D9 Msg: EEInfo: Flags: 0 Lid: 11672 dwParam: 0x6D9 Msg: EEInfo: NumberOfParameters: 4 Lid: 8856 dwParam: 0x6D9 Msg: EEInfo: prm[0]: Unicode string: ncacn_ip_tcp Lid: 8856 dwParam: 0x6D9 Msg: EEInfo: prm[1]: Unicode string: 4200SERVER.NIID.COM Lid: 12952 dwParam: 0x6D9 Msg: EEInfo: prm[2]: Long val: -1988875570 Lid: 15000 dwParam: 0x6D9 Msg: EEInfo: prm[3]: Pointer val: 0x0x1c788410 (UnknownPtag) Lid: 23746 Lid: 31938 StoreEc: 0x80040115 Lid: 19650 Lid: 27842 StoreEc: 0x80040115 Lid: 20866 Lid: 29058 StoreEc: 0x80040115".get-PublicFolderDatabaseCompletedWarning:Failed to connect to information store service on the server "SERVER.mydomain.COM". The exception message is "MapiExceptionNetworkError: Unable to make admin interface connection to server. (hr=0x80040115, ec=-2147221227)Diagnostic context: ...... Lid: 10648 dwParam: 0x6D9 Msg: EEInfo: Generating component: 2 Lid: 14744 dwParam: 0x6D9 Msg: EEInfo: Status: 1753 Lid: 9624 dwParam: 0x6D9 Msg: EEInfo: Detection location: 501 Lid: 13720 dwParam: 0x6D9 Msg: EEInfo: Flags: 0 Lid: 11672 dwParam: 0x6D9 Msg: EEInfo: NumberOfParameters: 4 Lid: 8856 dwParam: 0x6D9 Msg: EEInfo: prm[0]: Unicode string: ncacn_ip_tcp Lid: 8856 dwParam: 0x6D9 Msg: EEInfo: prm[1]: Unicode string: 4200SERVER.NIID.COM Lid: 12952 dwParam: 0x6D9 Msg: EEInfo: prm[2]: Long val: -1988875570 Lid: 15000 dwParam: 0x6D9 Msg: EEInfo: prm[3]: Pointer val: 0x0x1c788410 (UnknownPtag) Lid: 23746 Lid: 31938 StoreEc: 0x80040115 Lid: 19650 Lid: 27842 StoreEc: 0x80040115 Lid: 20866 Lid: 29058 StoreEc: 0x80040115".--------------------------------------------------------OK--------------------------------------------------------Also, do you agree with the suggested A and MX records in http://www.petri.co.il/configure_mx_records_for_incoming_smtp_email_traffic.htmThanks,

Hi, I came across an identical error but in my case the System Attendant service on the remote server didn't start for which that error was popping up when everI connect from an Exchange Management Console, once I started the service the error vanished. Thanks, Srini

First disable your anti-virus & then start Microsoft Exchange Information Store service it should startRegardsDEV

I'm receiving essentially the same error: -------------------------------------------------------- Microsoft Exchange Warning -------------------------------------------------------- The following warning(s) were reported while loading topology information: get-MailboxDatabase Completed Warning: Failed to connect to information store service on the server "XXX.yyy.com". The exception message is "MapiExceptionNetworkError: Unable to make admin interface connection to server. (hr=0x80040115, ec=-2147221227) Diagnostic context: ...... Lid: 15000 dwParam: 0x6BA Msg: EEInfo: prm[1]: Pointer val: 0x0x00000000 (PR_NULL) Lid: 15000 dwParam: 0x6BA Msg: EEInfo: prm[2]: Pointer val: 0x0x00000000 (PR_NULL) Lid: 16280 dwParam: 0x6BA Msg: EEInfo: ComputerName: n/a Lid: 8600 dwParam: 0x6BA Msg: EEInfo: ProcessID: 8336 Lid: 12696 dwParam: 0x6BA Msg: EEInfo: Generation Time: 2007-12-10 18:06:02:897 Lid: 10648 dwParam: 0x6BA Msg: EEInfo: Generating component: 8 Lid: 14744 dwParam: 0x6BA Msg: EEInfo: Status: 10060 Lid: 9624 dwParam: 0x6BA Msg: EEInfo: Detection location: 318 Lid: 13720 dwParam: 0x6BA Msg: EEInfo: Flags: 0 Lid: 11672 dwParam: 0x6BA Msg: EEInfo: NumberOfParameters: 0 Lid: 23746 Lid: 31938 StoreEc: 0x80040115 Lid: 19650 Lid: 27842 StoreEc: 0x80040115 Lid: 20866 Lid: 29058 StoreEc: 0x80040115". [snip] -------------------------------------------------------- OK -------------------------------------------------------- In my case, I have only recently begun to receive this error. It occurs on both nodes of my first CCR cluster, but only when using the Exchange Management Console from those two servers. If I use EMC to view the status of these mailbox servers from my other CCR cluster nodes or from either of my CAS boxes, it's fine. EMC shows mount status as "Unknown" but shows the copy status as "Healthy." I also get this error when running (if I recall) get-mailboxdatabase from either node of the first CCR cluster. The event viewer doesn't throw an error. Are there other logs that may provide relevant info? My systems are otherwise fully functional -- clearly, the databases are mounted, as shown by running the tools on other nodes and by the ability to send/receive, use OWA, schedule meetings, etc., etc. Any insight is appreciated. I'm hoping to avoid camping out on the phone with MS Premier Support. Best regards, Dan