Which of the following is NOT a symptom of a misconfigured gateway?

A stable local network performance indicates that local devices can communicate effectively with each other without issues, which suggests that the gateway settings related to the local network configuration are properly configured. In contrast, the other symptoms are all related to issues that typically arise from misconfigurations at the gateway level. Poor internet connectivity, inability to connect to external networks, and connection drops during video calls are all indicative of problems that arise when the gateway cannot manage connections, route traffic appropriately, or maintain reliable internet connections. Therefore, a stable local network performance would not be a symptom of a misconfigured gateway.