DOCUMENT:Q129127 31-OCT-1999 [crossnet] TITLE :File Transfers Using TCP/IP-32 Take a Long Time PRODUCT :Windows for Workgroups and Windows NT Networking Issues PROD/VER::3.11a; WINDOWS:3.11 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft TCP/IP-32 for Windows for Workgroups, version 3.11a - Microsoft Windows for Workgroups version 3.11 ------------------------------------------------------------------------------- SYMPTOMS ======== File transfers to a computer running Windows for Workgroups 3.11 and TCP/IP- 32 may take a long time. CAUSE ===== This problem can occur when the TCP Receive window size shrinks down to 1460 bytes, which is equal to the TCP segment size. It takes the Windows for Workgroups 3.11 client approximately 200 milliseconds to send an acknowledgment (ACK). STATUS ====== Microsoft has confirmed this to be a problem in Microsoft TCP/IP-32 for Windows for Workgroups, version 3.11a. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available. Additional query words: prodtcp32 wfw wfwg ====================================================================== Keywords : Technology : kbAudDeveloper kbTCPIPSearch kbWFWSearch kbZNotKeyword3 kbWFW311 kbTCPIP311a Version : :3.11a; WINDOWS:3.11 ============================================================================= 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.