Network connectivity issues can arise from a variety of sources. To help diagnose and resolve them, start by following these steps:

1. Check power sources. Ensure that the power source connected to your networking equipment is providing consistent power.
2. Check cable connections. Check for any breaks or faulty connections between the various pieces of networking equipment.
3. Check your settings. Make sure all your settings (e.g., IP address, network name) are correct.
4. Check your network card. Ensure the network card is connected properly and up-to-date.
5. Check with your internet provider. Contact your internet provider to ensure that your connection is properly set up and no connection problems exist on their end.