Error: 80072ee7 or 80048820 – 8004840a

The following issues may cause this error:
 
  • You may not have Internet connectivity.
  • Messenger relies on the internet connection settings found in Microsoft Internet Explorer and as a result the Microsoft Internet Explorer web browser needs to be able to connect to the internet.  You may have internet connectivity with other web browers, but not have internet connectivity with Microsoft Internet Explorer.
  • You may have a firewall that is blocking connectivity to MSN Messenger.
  • The Messenger Service may be experiencing difficulties.
If you are encountering this error, try the following:
 
1.  Determine whether you have Internet connectivity using the Microsoft Internet Explorer web browser:
1.a. Start Microsoft Internet Explorer. 
1.b. Click here and check if you can browse to Microsoft website. 
1.c. If you are using a wireless Internet connection, repair your wireless Internet connection to re-establish connectivity.
1.d. Refresh your IP address by following the steps below that are appropriate to the operating system version that you are using:
For Windows Vista:
i. Click Start , click All Programs, click Accessories, and then right-click Command Prompt.
ii. Click Run as administrator. If you are prompted for an administrator password or for a confirmation, type the password, or click Continue.
iii. At the command prompt, type the following commands and then press ENTER after each of them:
ipconfig /release
ipconfig /renew 
 
iv. Type exit , and then press ENTER to close the Command Prompt window.
For Windows 2000 and Windows XP:
i. Click Start, click Run, type CMD and then click OK.
ii. At the command prompt, type the following commands, pressign ENTER after each of them:
 
ipconfig /release

ipconfig /renew 
 
iii. Type exit , and then press ENTER to close the Command Prompt window.

For Windows 98 and Windows ME:

i. Click Start, click Run, type WINIPCFG and then click OK.
ii. In the IP Configuration dialog box that opens, click Release All, and then click Renew All. After both commands are executed successfully, a valid address will appear in the IP address box.
iii. Close the IP Configuration dialog box.
 
1.e. In case the steps for refreshing IP address failed you may have problem with internet connectivity and will need to contact your Internet service provider (ISP) for additional assistance.
 
2. After confirming that you have Internet connectivity try to sign into Messenger again. If you are still recieving the same error, follow the steps below.
 
3. Clear the cached DNS entries. To do this, follow the steps for the operating system that you are using:
Windows Vista :
i. Click Start , click All Programs, click Accessories, and then right-click Command Prompt. 
ii. Click Run as administrator.
iii. If you are prompted for an administrator password or for a confirmation, type the password, or click Continue.  
iv.  At the command prompt, type the following command, and then press ENTER:
ipconfig /flushdns 
v. Type exit , and then press ENTER to close the Command Prompt window. 
Windows XP:
i. Click Start, click Run, type cmd , and then click OK to open a Command Prompt window. 
ii. At the command prompt, type the following command, and then press ENTER:
ipconfig /flushdns 
iii. Type exit , and then press ENTER to close the Command Prompt window. 
Windows 2000: 
i. Click Start, click Run, type cmd , and then click OK to open a Command Prompt window. 
ii. At the command prompt, type the following command, and then press ENTER:
ipconfig /dnsflush
iii. Type exit , and then press ENTER to close the Command Prompt window.
Note: Windows 98 and Windows Millennium edition do not have cached DNS entries.
 
4.  Configure your firewall to enable Messenger to work.
4.a. If you are using MSN Messenger, go here to find steps for most commonly used firewall.
4.b. If you are using Windows Live Messenger, go here to find steps for most commonly used firewall.
4.c. After you reconfigure the firewall settings, sign in to Messenger again to determine whether the issue is resolved. 
 
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