This article contains a list of Microsoft Knowledge Base articles that apply to ISA Server. The problems that are described in these articles are fixed in ISA Server 2006 Service Pack 1 (SP1).
For more information about how to obtain ISA Server 2006 Service Pack 1, click the following article number to view the article in the Microsoft Knowledge Base:
954258
How to obtain the latest Internet Security and Acceleration (ISA) Server 2006 service pack
Fix list
For more information about the hotfixes and updates that are included in ISA Server 2006 Service Pack 1 (SP1), click the following article numbers to view the articles in the Microsoft Knowledge Base:
894679
Users who do not have the appropriate permissions can receive restricted content from ISA Server 2004
920913 Error message in response to some HTTP requests on client computers that are running ISA Server 2004 as a proxy server: "400 Bad Request"
921944 A client computer takes longer than expected to connect to a Web site through an ISA Server 2004 Web proxy server
922851 You receive a blank page when your Web browser submits a POST request to an ASP Web site over an ISA Server 2004 access rule that requires client authentication
922899 An ISA Server 2004 Web chaining rule may not redirect requests to the specified port
923318 Error message in SecureNAT clients after you configure a Web chaining rule to forward HTTP as HTTPS in ISA Server 2004: "The target principal name is incorrect"
923322 A large file download fails when an ISA Server 2004 SOCKS client computer uses passive mode FTP
923765 The Microsoft Firewall service stops responding to client computer requests and Event IDs 7034, 14057, and 1000 are logged after you publish an Outlook Web Access server in ISA Server 2004
923766 A client computer may not be authenticated by ISA Server 2004 when you use integrated Windows authentication
924405 Client computers cannot download attachments when you use ISA Server 2004 or ISA Server 2006 forms-based authentication and run a third-party OWA add-in program to manage attachments
925288 One or more published sites may stop being available if you create more than 300 Web site publishing rules in ISA Server 2006 Enterprise Edition
928273 Users may receive slow responses when you enable the Cache Array Routing Protocol in ISA Server 2004, Enterprise Edition
929818 You receive an error message when you try to install or to run Windows Vista: "The Software Licensing Service reported that the license is invalid"
930415 You cannot apply an OWA Web publishing rule that redirects users who connect to the root of the OWA Web site to an internal folder by using ISA Server 2006
933523 When an Internet Security and Acceleration Server 2004 client performs an action that uses the HTTP POST method, the action may be performed multiple times
934022 An ISA Server 2004 downstream server does not reuse the TCP connections to a third-party upstream server
935767 The authentication delegation in the existing Web publishing rules does not work after you upgrade ISA Server 2004 Enterprise Edition to ISA Server 2006 Enterprise Edition
938465 Error message when you try to access Web sites through a downstream server after you enable hotfix 927265 on an upstream server that is running ISA Server 2004: "502 Proxy Error"
938550 An update enables multicast operations for ISA Server integrated NLB
940659 Error message when you try to visit a Web site that is published in ISA Server 2004: "HTTP error 500: network name no longer exists"
940708 The "401 Authentication Required" response that is sent by a Web site is dropped when you use ISA Server 2004 as a Web proxy
941162 In ISA Server 2006, you cannot set a session time-out for private computers in a Web listener that has the RSA SecurID authentication method configured
941296 An ISA Server 2006 computer may stop responding under a heavy load
941634 After an ISA Server 2006 application filter establishes an HTTP connection, the connection closes before it can be used, and a "0x80004001 (E_NOTIMPL)" status code is logged
941870 Only 1,000 PPTP ports and 1,000 L2TP ports are open in Routing and Remote Access if the maximum number of VPN clients is set to more than 1,000 in ISA Server 2006
942313 Web pages do not appear as expected when you publish a Web site by using a publishing rule in Internet Security and Acceleration (ISA) Server 2006
942637 A user cannot access a Web site that is published in ISA Server 2006 by using Kerberos constrained delegation if the user is not in the same domain as the ISA Server computer
942638 POST requests that do not have a POST body may be sent to a Web server that is published in ISA Server 2006
943200 The Microsoft Firewall service stops unexpectedly on a computer that is running ISA Server 2004
943212 You cannot filter the RPC traffic based on universally unique identifiers (UUID) by using an access rule in ISA Server 2006
943214 When you publish a back-end ISA Server 2006 computer on a front-end ISA Server 2006 computer that faces the Internet, you cannot enable forms-based authentication on both computers
944699 The Microsoft Firewall service stops unexpectedly if a Web filter is used on a computer that is running ISA Server 2006
944764 Requests that have large request bodies may fail when you publish a Web site in ISA Server 2006
944824 Stop error message on a computer that has ISA Server 2006 installed: You receive a "Stop 0x0000007f"
945224 ISA Server 2006 may forward requests to an incorrect Web server when a client computer accesses Web sites that have different public names in the same session
945524 Some Web servers that are published in ISA Server 2006 by using the Web Publishing Load Balancing feature may be incorrectly detected as unavailable at random times
945814 Error message when you try to change the password of a user account even if you configure ISA Server 2006 to allow users to change their passwords
945882 HTTP SEARCH requests that do not have a SEARCH body may be sent to a Web server that is published in ISA Server 2006
947254 A computer that is running ISA Server 2006 may randomly stop routing packets from certain VPN clients or from certain VPN site-to-site networks
947255 Packets from the branch office may not reach the destination servers in the central office over a site-to-site VPN connection that you create through ISA Server 2006
947521 When HTTP compression is enabled in Web publishing rules in ISA Server 2006, the compression filter may be unable to handle HTTP responses
948711 A report may not display HTTPS traffic in ISA Server 2006
949628 The Microsoft Firewall service crashes randomly when you use ISA Server 2006 to publish a Web server by enabling forms-based authentication
950139 The Microsoft Firewall service in ISA Server 2006 stops responding to client requests after you publish a Web server by using NTLM authentication delegation
951508 When you use ISA Server 2006 to publish a Web server, and authentication delegation is enabled, some Web content may not be displayed correctly when a user accesses the published Web server
951509 Users cannot access a Web site that is published in ISA Server 2006 if the Web site accepts only the SPNEGO authentication package
950150 Error message when you open a .gz file that you downloaded through an ISA Server 2004 Web proxy server: "Invalid archive directory"
952675 You cannot log on to a local intranet site that you publish by using ISA Server 2006 when there are multiple user accounts that have the same account name in different domains
935784 The report status appears as "Generating" and the report does not run when you click "Run now" in ISA Server 2006
935928 A client computer may receive an error message when an ISA Server 2006 access rule limits access by content type: "HTTP 502 Proxy Error"
935693 An ISA Server 2006 Web Proxy client receives error code 502 when a user tries to visit certain Web sites
948749 Domain replication across ISA between Windows Server 2008 DCs fails
952082 ISA Server 2006 Service Pack 1 introduces a new alert that is named "Client Authentication Time Exceeded"
950534 ISA Server 2006 incorrectly returns an "HTTP 304 Not Modified" response to a proxy client
951957 Error message when you try to copy a Web proxy log record to a clipboard in ISA Server 2004: "Error message 0x8007013d: ERROR_MR_MID_NOT_FOUND"