An RBS and NatWest spokesperson said:
We apologise for the disruption our customers experienced last night. All systems are up and running as normal, though any customers with any individual problems should get in touch with us.
Between roughly 9-11pm customers were not able to access online banking and also had problems with ATM use and point of service payments.
This problem was caused by a hardware fault and was not related to the issues we experienced last summer. It was much easier to fix, though clearly an unacceptable failure.
Any customer who was left out of pocket due to this outage should get in touch so we can put things right for them.
More top news
Liverpool edged an epic penalty shootout to beat Middlesbrough and progress to the fourth round of the Capital One Cup.
The world famous musical, which has been running on Broadway since 1997, has broken records earning more than £2.8 billion.
There will be wet weather around tonight with rain drifting from north to south which will lead to scattered showers tomorrow morning.