Train passengers face losing access to free wifi under cost-saving measures.
The Department for Transport (DfT), which controls the finances of most operators in England, said it is reviewing whether the service “delivers the best possible value for money”.
Most train services on Britain’s railways offer free wifi, enabling people to connect their electronic devices to the internet without paying for data.
The review of access to wifi was first reported by railway historian Christian Wolmar on his Calling All Stations podcast.
Mr Wolmar said: “Why this gets me kind of quite angry is that we’re trying to get people to use the railways.
“We’re trying to attract the commuters back onto it.
“What do people like doing on trains? They like to get their laptops out and their phones out and bash away a few emails or whatever work they have to do.
“If they can’t get that reliably on the train, they might then consider using their car.”
Anthony Smith, chief executive of independent watchdog Transport Focus, said: “Access to wi-fi is something many passengers now expect as standard. It helps people use their travel time productively and is something which could encourage more people to use rail over other modes.
“Given the post pandemic need to get more passengers back on the train it would be difficult to justify removing something that makes rail more attractive to customers.”
A DfT spokeswoman said: “Our railways are currently not financially sustainable, and it is unfair to continue asking taxpayers to foot the bill, which is why reform of all aspects of the railways is essential.
“Passenger surveys consistently show that on-train wifi is low on their list of priorities, so it is only right we work with operators to review whether the current service delivers the best possible value for money.”
The DfT said many passengers on short journeys prefer to use their phones without connecting to onboard wifi.
It added that continuing to provide wifi on many trains will require replacing or upgrading equipment installed in 2015.