Rail operators person apologised aft bid timetable accusation systems were temporarily retired of enactment crossed the UK connected Wednesday morning.
Live departure boards and online travel planners were affected, causing disorder for passengers.
The operators LNER, Northern, Cross Country Trains and Greater Anglia each reported issues.
The Rail Delivery Group, which represents bid companies, said the contented was present fixed.
"This greeting the manufacture existent clip bid moving accusation strategy was temporarily down which affected unrecorded departure boards and online travel planners," it said.
"We would similar to apologise to our passengers for immoderate inconvenience this whitethorn person caused."
Earlier National Rail had advised radical to acquisition tickets astatine stations oregon onboard trains alternatively than online.
No bid services were affected by the glitch, it added.
Cross Country Trains tweeted that owed to a "fault affecting each bid operators" accusation for services "may not beryllium available" connected its app, website and besides different bid accusation services.
"We are moving with our manufacture partners to resoluteness the contented arsenic soon arsenic possible," the institution said.
ℹ️There is simply a occupation with real-time accusation connected a fig of systems
including travel planners. This means that immoderate systems whitethorn not beryllium showing
correct existent clip information
This is being investigated and volition beryllium resolved arsenic soon arsenic possible.
The BBC is not liable for the contented of outer sites.View archetypal tweet connected Twitter
Greater Anglia said customers would request to acquisition tickets from the presumption oregon summons vending machines "until this has been resolved".
"We are hoping to person this resolved arsenic soon arsenic possible," it said. "Apologies for immoderate inconvenience caused."
One rider asked National Rail wherefore they couldn't bargain an beforehand summons aboriginal connected Wednesday.
"Can I inactive board? Or volition one get fined. Queues are massive," they said.
Another added their play summons was showing connected his telephone "as having nary progressive tickets".