We show you the steps you must take to fix the 80072745 error when logging into Messenger and it displays the message " Unable to log into Windows Live Messenger possibly due to a problem with your internet connection "
When you log into Messenger message appears: " Unable to log into Windows Live Messenger possibly due to a problem with your Internet connection . Please try again later: Error 80072745 or 80072746 . "
Probable causes of the error 80072745 :
- connections have been blocked from Windows Live Messenger through port 1863.
- The router's firewall may be blocking connections to port 1863.
- Access to Windows Live Messenger service has been blocked by your ISP Internet connection . This problem happened in 2006 in Spain due to a supplier's Telefonica and Microsoft issued a solution to that particular case.
Methods to solve the error 80072745
- If you are connected to the Internet through a router try restarting. If after a few minutes the problem persists contact the manufacturer of the router to determine how to enable port 1863 through the firewall of the router.
- If you're logging in from a corporate network, contact the network administrator to determine if port 1863 is being blocked within the network .
- If you have installed on your computer with Zone Alarm IM security , turn off IM Security for Windows Live Messenger:
- Click the right mouse button on the Zone Alarm icon in the notification area , and then open the Control Center.
- Click IM Security or Security to open the configuration window of instant messaging security .
- Click the Home tab or State.
- Move the slider on the Security Level to Off to disable instant messaging security .
- Again log on to Windows Live Messenger to see if the bug has been resolved.
- If you are connected to the Internet using a 3G USB modem card or wireless data through a wireless network , contact your mobile internet provider to verify if you need additional data plans that allow you to connect to Windows Service Live Messenger.
- Even the antivirus software can cause this problem by blocking the TCP / IP traffic . Try to disable or delete it.
- Click on Start and then Control Panel .
- Click " Add or Remove Programs " if you use Windows XP or "Programs and Features " if you use Windows 7 or Vista.
- Find your antivirus in the list of installed programs. (Some of the most widely used are AVG antivirus , Kaspersky , McAfee , Symantec , Avast )
- Select it and click " Remove or Uninstall. "
- Once you complete the uninstall process , restart your PC and then try to connect to Messenger
