Network Doctor

Use this skill to diagnose and improve local network performance without guessing or making unsafe system changes.

Scope

Handle:

• Slow internet speed, unstable latency, packet loss, DNS delay, MTU symptoms
• Wi-Fi signal/interference problems
• VPN, proxy, split tunnel, firewall, or filtering conflicts
• Background processes consuming bandwidth
• Stale network locations/profiles and mDNS oddities
• Windows TCP auto-tuning only when the user explicitly says Windows

Do not handle:

• General Mac slowness, browser slowness, local LLM speed, disk cleanup, app crashes
• Router admin changes unless the user explicitly asks and provides access
• Production network, office network, cloud infrastructure, or shared enterprise devices without explicit authorization