In the Netherlands, train services returned to normal on Monday after largely collapsing on Sunday.
"Here and there a train failed, but basically we just started back to normal," said a spokesman for the state railway company NS in the morning.
According to NS, the failures on Sunday were the result of a major disruption in the computer system used to plan and control rail traffic.
As a result, all trains had to be stopped from Sunday noon until the evening.
There were also some failures in long-distance traffic, for example on the ICE route from Frankfurt to Utrecht.
On the other hand, the traffic of private regional companies was not affected.
Because of the outages, thousands of travelers got stuck across the country.
Passengers had to leave the trains at the nearest station and waited for hours for information.
The timetable displays at the train stations and the train app were also affected by the disruption.
Long queues formed in front of counters, especially in big cities like Rotterdam, Utrecht and Amsterdam as well as at Schiphol Airport.
The railway company did not use any buses, which a spokesman justified with a lack of capacity.
First it was said that the trains could start again from 5 p.m., then this was postponed to 8 p.m.
“Although the cause of the disruption has now been resolved, the impact is significant.
In order to be able to start reliably, systems have to be updated and trains have to be brought to the right place," said the NS on Sunday evening.
The railway company had no evidence of a hacker attack.
The exact cause of the IT malfunction has yet to be determined.
As early as May and September last year, all rail traffic was down for a few hours, which was justified at the time by a failure of the communication network.