Confirm where the exclamation point appears: 1. Fiber optic networks are celebrated for their speed and reliability, but even the best systems can encounter problems. When issues like signal loss, slow speeds, or intermittent connectivity arise, systematic troubleshooting is key. This guide will walk you through diagnosing and resolving common. The exclamation mark symbol next to your network signal is typically an alert that indicates there's a problem with your internet connectivity. Essentially, your phone is connected to the network, but it cannot access the internet. Many fiber internet problems come from dirty connectors or loose plugs, not major faults.