https://www.washingtonpost.com/transportation/2023/01/20/marc-train-cancels-service/
"Due to system wide outage," per the MTA. Smh, hope no one was planning to use it today.
Edit 1: The trains are affected this morning with no estimated time for restoration of normal service. Folks have reported being able to take trains on Penn line, but not Camden line. Please note this article has been edited at least twice, and this appears to be an evolving issue. Check with a primary source, like the MTA, for more of-the-moment updates, not secondary sources like The Washington Post.
Edit 2: As of approximately 10:00 a.m., folks are reporting normal (well, reduced schedule, so not exactly normal) train service has been restored. Again, please confirm with MTA as you plan today. For example, MTA posted the service restoration announcement on Twitter. That original WaPo article has also been updated.
artgrrl t1_j54yyx7 wrote
My husband is turning back around from Penn Station right now due to this issue. He was supposed to give an important presentation in DC today. Bummer. At least he can still get dialed in, but he said it won’t be the same. Wish we had seen this news sooner!