BlackBerry users at PC World reported at about 4:30 PST that their service is back after a three-hour outage here in San Francisco.
The service was out for a great deal of the day in parts of the U.S. and Canada.
Updated 6:18 p.m. Zenprise, a company whose service-management software troubleshoots for BlackBerry environments, reports that the cause of the RIM outage has yet to be determined, but a company spokesperson did offer some insights on what's happening. According to Zenprise, two IP address paths in North America connect into the RIM network.
Zenprise's diagnostic tests showed that one IP address
was refusing connections to come through, causing enterprise users to be impacted; users of the working IP would not have been affected, and if your service has been intermittent, that could be explained by a switch between the two IP addresses.
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