Some Skype users have been unable to sign into accounts after the service suffered a second outage in as many weeks.
At the end of May 2011, Skype was forced to issue a workaround for users locked out across various operating systems as it worked on a permanent fix. Skype also reported a problem earlier in the week for UK users using its 'Online Numbers' service.
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Peter Parkes, a Skype spokesman, wrote in a blog post: "A small number of you may have problems signing in to Skype."
In an update, Skype blamed a configuration problem for some users being disconnected from its service.
"We've identified the cause of the problem, and have begun to address it," added Peter Parkes, saying users should be automatically logged back in.
Skype users on social networking site, Twitter, reported the Skype application crashing and terminating calls since this morning.
Microsoft bought Skype in May 2011, in a deal worth $8.5bn.
Skype Journal estimates the number of active Skype users around the world as around 177 million.
Computer Weekly says...
While Skype is trying to entice business users to use its platform for conference calls, disruptions to its service may deter enterprises from relying on Skype for crucial calls.