Barclays Bank is still investigating what went wrong over the Bank Holiday weekend to cause its network of cash points or ATMs to crash over the weekend.

Barclays customers could not get cash out until 5.00pm Sunday. The problem hit 1,500 machines in southern England. Telephone and internet banking were also affected

Some reports suggested this was due to human error - Saturday night was the start of British Summer Time so clocks in the UK went forward an hour. Early reports were that a Barclays employee may have moved a server's internal clock back instead of forward.

Barclays, which apologised for the problems, denied the time change was to blame.

A spokeswoman for Barclays told El Reg: "We are still investigating what went wrong but early reports suggest a small piece of IT hardware." She would not elaborate on what the equipment is but said it was definitely not a clock. ®

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