DOCUMENT:Q183772 08-APR-1999 [exchange] TITLE :XCLN: Unable To Connect To Server With Underscore in Name Using PRODUCT :Microsoft Exchange PROD/VER:MACINTOSH:4.0,5.0,8.0 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Exchange Macintosh client, versions 4.0, 5.0 - Microsoft Outlook for Macintosh, Exchange Server Edition, version 8.0 ------------------------------------------------------------------------------- SYMPTOMS ======== When you attempt to connect to a computer running Microsoft Exchange Server version 5.x using the Microsoft Exchange or Outlook client for Macintosh configured with Mac TCP/IP version 2.06, the following error appears if the Exchange Server name contains an underscore: Microsoft Exchange could not be started. Network problems are preventing connections to Microsoft Exchange Server computer. Contact your system administrator if this condition persists. CAUSE ===== Per article number 16922, "MacTCP 2.0.6: Invalid Domain Name, Syntax Error," in Apple's Technical Information Library (TIL) this is a known issue when using Mac TCP/Ip 2.06. For more information concerning specific troubleshooting, see the TIL at www.apple.com. WORKAROUND ========== Installation of Open Transport version 1.1.1 or higher resolves this issue. ====================================================================== Keywords : Technology : kbHWMAC kbOSMAC kbExchangeSearch kbExchangeClientSearch kbOutlookMacSearch kbExchange500Mac kbExchange400Mac kbOutlook800Mac Version : MACINTOSH:4.0,5.0,8.0 Hardware : MAC Issue type : kbprb ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 1999.