Issues with the modem or router can cause slow internet speeds, intermittent connection, or no connection issues. To address these difficulties, it may be necessary to investigate. Fiber optic networks are celebrated for their speed and reliability, but even the best systems can encounter problems. This guide will walk you through diagnosing and resolving common. Here's the good news: more often than not, fiber internet slowdowns can be fixed quickly and easily. To improve your speed, try these tips for optimizing your connection. Due to a high amount of signal loss in my apartment, the connection from my Asus router does not reach the bedrooms.