Koleje Dolnośląskie reports disruptions to train services due to a nationwide outage. The situation is worst on line D1: Wrocław – Legnica – Bolesławiec – Węgliniec – Lubań Śląski. (Status at 11:54).

Service interruption on the Węgliniec – Legnica section. No railway traffic control. Replacement bus services will be operated instead of trains. We apologize for the disruptions.
Disruptions to services

Service interruption at Wrocław Żerniki station. Trains are delayed. We apologize for the disruptions.
Disruptions to services

Failure of railway traffic control equipment. Train 69555 on the route: Wrocław Gł (07:41)–Lubań Śl (10:07) has been cancelled. Replacement bus services will operate on the Legnica–Lubań Śl section. Delay of approximately 30 minutes. We apologize for the disruptions
Service suspended

Failure of railway traffic control equipment. Service interruption. Trains on the Legnica – Zgorzelec route have been cancelled. Replacement services will operate for the cancelled trains. We apologize for the disruptions
Service suspended

Details on the Kolei Dolnośląskich website.