SAN JOSE — All BART stations were back online by Sunday afternoon after a computer issue shut the transit agency down all morning.
BART spokesman Jim Allison said the agency restored service to all San Francisco, Peninsula and East Bay stations. Staff were still gathering information about the computer communication problem. In a thread posted on Twitter just before 2 p.m. Sunday, BART officials said one of the dozens of field network devices failed “disrupting the operational communications network.” The system, BART said, “went into fail safe mode and shut down.”
“Engineers and technicians worked to locate the failed device and to restore communications functionality,” BART officials said. “It’s unacceptable not to have service. Engineers have implemented a configuration change to the network which i expected to protect against future device failures that could potentially shut down the system. We apologize for not being able to provide service earlier.