SEATTLE — Skype SA mostly recovered yesterday from an outage caused by an undisclosed glitch, but problems lingered.
The Internet calling and messaging service went down for almost all of its users starting at midday Wednesday. By yesterday afternoon, about 21 million users were logged in, said chief executive Tony Bates. That was 10 percent less than the usual traffic for the time of day; some people still could not log on.
Bates declined to say what caused the software on individual users’ computers to crash, which in turn caused network issues. Nor would he say whether the problem originated at Skype, but said Skype users should not worry about security.
“We have a very good handle on what caused the problem,’’ Bates said. “We are still doing an in-depth post-mortem.’’
On average, 124 million people use Skype each month, though the total number of registered users is more than four times that.
Skype was still working out details for vouchers to compensate people who suffered from the downtime.