# Central European bank technical maintenance outages > Live situation record from CLSTR: https://clstr.news/situations/central-european-bank-technical-maintenance-outages > Updated: 2026-09-19T05:14:00.000Z. Sources: 8. Developments: 2. Major financial institutions in Poland and the Czech Republic have announced various scheduled technical maintenance windows affecting digital services. In late August 2026, several banks including Erste Bank Polska, PKO BP, and ING Bank Śląski in Poland, along with CREDITAS and Raiffeisenbank in the Czech Republic, reported upcoming outages for mobile apps, internet banking, and investment platforms. During these periods, physical payment cards were generally expected to remain functional at stationary terminals. By September 2026, Polish banks continued to schedule maintenance. PKO BP announced a service interruption lasting over 12 hours on September 20, affecting internet and telephone banking while utilizing SMS codes for mobile authorization. Concurrently, ING Bank scheduled maintenance for the weekend of September 20–21, which included temporary blocks on ATM and deposit machine transactions. ## Timeline ### 2026-09-19: PKO BP and ING Bank announce scheduled technical maintenance PKO BP and ING Bank have announced scheduled technical maintenance for September 20, affecting mobile apps, internet banking, and ATM services during specific windows. 2 sources. https://clstr.news/cluster/pko-bp-and-ing-bank-announce-scheduled-technical-maintenance ### 2026-08-20: Major banks in Poland and Czechia announce weekend service outages Major banks in Poland and the Czech Republic, including Erste, PKO BP, and ING, have announced scheduled technical maintenance for the weekend of August 22–23, affecting digital and mobile banking services. 7 sources. https://clstr.news/cluster/polish-banks-ing-and-pko-bp-announce-scheduled-service-outages --- Cite as: Central European bank technical maintenance outages. CLSTR, https://clstr.news/situations/central-european-bank-technical-maintenance-outages