This guide dives deep into the most prevalent fiber optic network problems, their root causes, and actionable solutions. With upload and download speeds that often exceed 1,000 Megabits per second (Mbps), fiber optic internet has the capacity to provide a seamless online experience while powering all of your connected devices at once. Here's the. Fiber optic networks are celebrated for their speed and reliability, but even the best systems can encounter problems. This technology offers significant advantages over traditional copper cables. What causes it? How to fix. To meet this demand, the UK government and service providers have fast tracked the expansion of the high-speed internet infrastructure known as “fibre to the premises” (FTTP). FTTP connects homes and offices directly to fibre optic cables which, using light pulses as signals, can carry data very.