HÀ NỘI — Vietnamese internet service providers have confirmed that four out of five submarine internet cables that connect the country to the world are experiencing issues, seriously affecting performance and reliability. Many internet users have complained of slow and unreliable internet connections in recent times, ISPs have said. Mobile data connections are also ensured, according to a VNPT representative. However, it stressed that with breakages occurring on four out of five undersea cables, internet access would suffer, especially in ‘peak hours’ with activities that demand large data like online games or watching movies, etc. Major domestic service providers are actively working with submarine cable systems and ship operators to determine the cause of the issues, the location of the incident and the repair plan, in the shortest time possible.