Internet Explorer errors

1) Make sure you have loaded TCP/IP. If not, go to Control Panel>Network>Configuration>add>Protocol.
2) Verify network settings by using ping and ipconfig. If you can't ping 127.0.0.1, go to back to 1) or remove and re-install TCP/IP. If you can't ping the router ip, use ipconfig to make sure they are in the same subnet. If you can't ping outside ip or public ip, make sure the computer have correct default gateway. If you can ping public ip but not web site like yahoo.com, check the DNS settings.
3) Make sure the Use a Proxy Server check box is unchecked if you do not use a proxy server. To do this, go to IE>Tools>Internet Options>Connections>LAN Settings.
4) Disable or remove any software like Comet Cursor may cause IE problem. You can use msconfig to disable.
5) Make sure that there are no parental restrictions on the account after installing ICS with AOL.
6) If you can connect to the site using the IP but not the Fully Qualified Domain Name (FQDN) such as yahoo.com, check for entries in the Hosts file on the local computer, or rename it.
7) Check network properties and look for multiple instances of the TCP/IP protocol bound to the dial-up adapter. If multiple instances of the TCP/IP protocol are bound to the dial-up adapter, unbind the protocol so that only a single protocol (TCP/IP) is bound to the dial-up adapter. To do this, Network Neighborhood>Properties, click one of the TCP/IP dial-up adapter settings, click Remove, and then click OK.
8) Check for multiple instances of the Wsock32.dll, Winsock.dll, and Wsock.vxd files. Also check the dates and versions of these files. Rename any file that is not in the appropriate folder (Wsock32.dll and Wsock.vxd should be in the Windows\System folder, and Winsock.dll should be in the Windows folder).
9) Clean cookies and Internet Temp files.
10) You may want to logon another user if you are running w2k/xp.
11) You may want to use mscomfig disable some software such as Xupiter, Gator and Comet Cursor.
Re-install IE or upgrade it. We may wan torename all Winsock.dll, Wsock.vxd and Wsock32.dll before the installation.

SYMPTOMS: When trying to retrieve e-mail messages from Hotmail through Outlook Express, you may receive the following error messages: "The server could not be found", "Unable to poll for new messages on your HTTP server. Account 'Hotmail', Server 'http://services.msn.com/svcs/hotmail/httpmail.asp', Protocol HTTPMail Server Response: 'Proxy Authentication Required' (The ISA Server requires authorization to fullfill the request. Access to the Web Proxy services is denied.)', Port 0, Secure(SSL): No, Error Number: 0x800CCC37", or "Unable to poll for new messages on your HTTP server. Account 'Hotmail', Server 'http://services.msn.com/svcs/hotmail/httpmail.asp', Protocol HTTPMail Server Response: 'Forbidden ( The ISA Server denies the specified Uniform Resource Locator (URL). )', Port 0, Secure(SSL): No, Error Number: 0x800CCC33"

Resolutions:: This issue occurs because Outlook Express might not be able to pass authentication credentials through ISA Server.
1. Add *.hotmail.com;*.msn.com into Exception under IE>Tools>Internet Options>Connection>LAN Settings>Proxy Settings>Advanced.
2. Use the firewall client and uncheck proxy settings under Internet Options
3. Configure the HTTP redirector filter to send to the requested Web server on the ISA server. To do this, go to ISA Management>Extensions>Application Filters>HTTP Redirector Filter>Options, check Send to requested Web server.
4. Configure protocol rules and site and content rules to apply to any request under ISA server. To do this, go to ISA Management>Access Policy>Site and Content Rules or Protocol Rules, double-click the appropriate policy and then click the Applies to tab, and then click Any Request.
5. If you are running a Windows 2000 Domain. you can force authentication by using the Windows credentials. To do this, go to AD Domains and Trusts, right click where it says "Active Directory Domains and Trusts" and choose properties. Add a new UPN suffix such as hotmail.com and msn.com. Then create a user with the same name and password as your hotmail account. Set the UPN for that account to the hotmail.com or msn.com UPN created in the previous step. Note: this would need to be done for every client that accesses hotmail. It is recommended that the rights of these accounts be restricted, perhaps placing them in a special group. If you are using user/group access restrictions in ISA, make sure these users are granted access.