Windows patch shuts down internet access

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A Windows patch released by Microsoft last week has left call centres at Telstra and a local security software distributor flooded with enquiries after they lost their internet access after installing the update, which was to plug a security hole.

Customers using ZoneAlarm found that they had lost their connection altogether, forcing the company to say that it was "incompatible" with ZoneAlarm and the maker, Checkpoint, had released a patch for the problem.

Microsoft’s spokewoman has said to Australian IT that they had published instructions for addressing the problem, but did not reveal if the company will withdraw the patch from Windows Update temporarily.

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