# Infrastructure and telecommunications disruptions in Cuba

> Live situation record from CLSTR: https://clstr.news/situations/infrastructure-and-telecommunications-disruptions-in-cuba
> Updated: 2026-09-12T19:00:47.000Z. Sources: 3. Developments: 2.

Cuba has experienced significant disruptions to its digital and telecommunications infrastructure. In mid-August, telebanking services in Havana were interrupted due to server link failures at the Unión Eléctrica (UNE), following a series of collapses within the National Electric System (SEN) that had previously halted digital payments via ATMs and mobile platforms.

By September, the focus shifted to a major communication blackout on Isla de la Juventud. This outage, caused by damage to two submarine cable connectivity routes, cut off mobile services and partially disrupted landlines. While ETECSA has implemented limited satellite links for national radio and television, repair efforts have been delayed by adverse weather conditions.

## Timeline

### 2026-09-12: Isla de la Juventud faces prolonged telecommunications blackout

ETECSA is struggling to repair a damaged submarine cable on Isla de la Juventud, Cuba, as adverse weather delays the restoration of mobile and landline services.

3 sources. https://clstr.news/cluster/isla-de-la-juventud-faces-prolonged-telecommunications-blackout

### 2026-08-14: Havana telebanking services disrupted by electric company server failures

Telebanking services for electricity bill payments in Havana are disrupted due to server link failures at the Unión Eléctrica, following recent instability in Cuba's national electric system.

4 sources. https://clstr.news/cluster/havana-telebanking-services-disrupted-by-electric-company-server-failures

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Cite as: Infrastructure and telecommunications disruptions in Cuba. CLSTR, https://clstr.news/situations/infrastructure-and-telecommunications-disruptions-in-cuba