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Troubleshooting IE Issues

Can't run IE
Can't access some web sites
Can't retrieve e-mail from Hotmail through Outlook Express
Can't download files
Can't enter data on web sites are using non-encrypted forms

Can ping public IPs but not web sites
Can't access the internet after cleaning the virus
The page cannot be displayed
How to troubleshoot internet access issues
Troubleshooting Spyware
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A Runtime Error has occurred wile running IE

Symptom: When running Internet Explorer a dialog box is displayed the following message: A Runtime Error has occurred. Do you wish to Debug?

Resolutions: 1. Try cleaning all of Internet Explorers temporary files and cookies.
2. Disable script debugging under Internet Options.
3. Re-install or update java software.

For step by step troubleshooting internet access issues, visit this web: http://www.howtonetworking.com/Troubleshooting/notaccessibale0.htm.

Can't run IE

Symptoms: when running IE, you may get the following errors:

  • The Page Cannot Be Displayed.  
  • Cannot open the Internet site Web address. A connection with the server could not be established.  
  • The page you are looking for is currently unavailable. The Web site might be experiencing technical difficulties, or you may need to adjust your browser settings.  
  • Cannot find server or DNS Error.  
  • An internal error occurred in Windows Internet extensions.
  • DNS error and Web page cannot found

Resolutions:

1) Scan virus first.
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 msconfig disable some software such as Xupiter, Gator and Comet Cursor.
12) Re-install IE or upgrade it. We may wan to rename all Winsock.dll, Wsock.vxd and Wsock32.dll before the installation.
13) Make sure you have loaded TCP/IP. If not, go to Control Panel>Network>Configuration>add>Protocol.

For step by step troubleshooting internet access issues, visit this web: http://www.howtonetworking.com/Troubleshooting/notaccessibale0.htm.

Can't access some web sites

Symptoms: 1) If you're using MS ICS or Windows server as router to access the Internet, your clients may not be able to access certain web sites. However, the ICS host or the server doesn't have this problem.
2) After installed a new router or cable modem replacing dial-up to access the Internet, you can't access some web sites.
3) You also find that most web sites you can't access are block to ping or they are security sites using HTTPS.

Causes: 1) The problem occurs because many web servers block ICMP messages and the packets are dropped. As a result, the requested web site doesn't load.
2)
This problem is caused also by an incompatible MTU networking setting. You may try to install the latest SP. If you use MS ICS, you may want to configure all your Client computers to use the new, lower MTU as the default for all Internet communication. To modify the MTU size, locate the following registry key: HKEY_LOCAL_MACHINE\ SYSTEM\ CurrentControlSet\ Services\ Tcpip\ Parameters\ Interfaces. If you use a router like Cisco DSL Router, you may want to adjusting the PPPoE MTU Size. For example, to adjusting the PPPoE MTU Size on the Cisco DSL Router, do

interface ethernet0
 no shut
 ip address <ip address> <subnet mask>
 ip adjust-mss 1452

For step by step troubleshooting internet access issues, visit this web: http://www.howtonetworking.com/Troubleshooting/notaccessibale0.htm.

Can't retrieve e-mail from Hotmail through Outlook Express.

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.

Can't enter data on web sites are using non-encrypted forms

Go to Tools>Options>Security>Custom Level>Miscellaneous, check Enable on Submit Non-encrypted Form Data.

Can't download files

Te high security level doesn't allow file downloads. Choose a different security level, or go to the Custom Level>Download, set File Download to Enable.

Can ping public IPs but not web sites

Symptoms: 1. You can ping any public IPs but not web sites. 2. The routing table and ipconfig look OK but you can't browse any web sites.

Resolutions: 1. Check the DNS, for example using nslookup to troubleshooting.
2. To test, disable any firewall. If it works after disabling firewall, re-configure the firewall and make sure the firewall doesn't black port 43..
3. Check the status of winsock.dll, wsock32.dll or download winsockfix to fix the problem
4. Also try to disable DNS client service if you don't have domain network or use ipconfig /flushdns to purge the DNS resolver cache.
5. Apply SP.
6. Try to logon another user.
7. Check Event Viewer for any errors
8. Remove and re-install NIC with latest drive.
9. Assign static IP, Gateway and DNS manually.

For consultants, refer to IE issue page.

Can't access the internet after cleaning the virus

Symptoms: 1. After you cleaned Worm Blast and downloaded ms patch, you are unable to access the internet any more. 2. When test it, you may be able to ping the public ip but not web site.

Resolutions:  Check the status of winsock.dll, wsock32.dll or download winsockfix to fix the problem.

The page cannot be displayed

Symptoms: When starting Internet Explorer, you may receive the following error message: “The page cannot be displayed”.

Cause: These issues may occur if the Winsock registry keys are damaged or corrupted.

For step by step troubleshooting internet access issues, visit this web: http://www.howtonetworking.com/Troubleshooting/notaccessibale0.htm.

Troubleshooting Spyware

If uninstalling or spyware-remover software don't remove the psyware, you may want to use MSCONFIG plus Task Manger to find the expected spyware, and the modify the registry.

Your current security settings prohibit running ActiveX controls on this page.

Causes: 1. No connection to the Internet.
2. Incorrect DNS settings.
3. Improper IE
security settings.
4. Improper IE LAN settings. Refer to :RL0602204

 

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