The no contacts online issues affect not only contacts from Windows Live Messenger instant messaging network, but also all other supported IM networks, including Yahoo! Messenger and Facebook. In fact, some of the contacts may actually online, but it appear as offline to the user whose instant messaging program has problem.
In Windows Live MSN Messenger 2011, a person no longer able to send or reply a message and chat with a contact which appears offline, even though the person is online at the time. To make matter worse, when user sign into Web Messenger or on another computer, all contacts that are supposedly online are appear online.
The exact cause for the problem is unknown, but most likely it’s due to corrupted Windows Live Messenger related files. To resolution to fix the all contacts appear offline issue is simple. Just go toControl Panel -> Programs -> Programs and Features and select (highlight) Windows Live Essentials 2011. Then, click on the Uninstall/Change button. In the Windows Live Essentials 2011 setup window, click on Repair all Windows Live programs to reinstall WLM Messenger 2011.
Once repair is done, restart Windows Live Messenger and all contacts that are online should appear as online.