Connected to Wi-Fi but Can’t Access Internet

Mac

Verify Connection

• Go to System Settings > Wi-Fi, ensure connected to your router with a valid IP address (e.g., 192.168.x.x).
• Test by opening a browser and visiting google.com. If it fails, proceed.

Restart Devices

• Restart your Mac (Apple Menu > Restart).
• Unplug the router for 30 seconds, then reconnect.

Check Network Settings

• Go to System Settings > Network > Wi-Fi > Details.
• Ensure DHCP is selected (automatic IP). If manual, renew lease (click Renew DHCP Lease).
• Set DNS to 8.8.8.8 (Google) or 1.1.1.1 (Cloudflare) under DNS tab.

Run Wireless Diagnostics

• Hold Option (⌥), click Wi-Fi icon in menu bar, select Open Wireless Diagnostics.
• Click Continue, follow prompts, and note errors. Save report for support.

Flush DNS Cache

• Open Terminal (Applications > Utilities).
• Type: sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder and press Enter.
• Enter your admin password when prompted.

Check Security Software

• Update antivirus (e.g., Malwarebytes) and scan for malware.
• Temporarily disable firewall (System Settings > Network > Firewall) to test.

Update macOS

• Go to System Settings > General > Software Update. Install updates.

Contact Support

• If unresolved, submit a ticket at Support@gigapeak.co.uk 
• Provide: macOS version, Wi-Fi settings, diagnostic report, and error details.

Windows PC

Verify Connection

• Go to System Settings > Wi-Fi, ensure connected to your router with a valid IP address (e.g., 192.168.x.x).
• Test by opening a browser and visiting google.com. If it fails, proceed.

Restart Devices

• Restart PC (Start > Power > Restart).
• Unplug router for 30 seconds, then reconnect.

Check Network Settings

• Go to Settings > Network & Internet > Wi-Fi > Manage Known Networks.
• Click your network, check properties. Ensure IP Assignment is “Automatic (DHCP).”
• Set DNS to 8.8.8.8 or 1.1.1.1 (Advanced Network Settings > Change Adapter Options > Right-click Wi-Fi > Properties > IPv4 > DNS).

Run Network Troubleshooter

• Go to Settings > Network & Internet > Status > Network Troubleshooter.
• Follow prompts. Also try Additional Troubleshooters > Internet Connections. Note errors.

Flush DNS Cache

• Open Command Prompt (type cmd in search, run as administrator).
• Type: ipconfig /flushdns and press Enter.

Check Security Software

• Update antivirus (e.g., Windows Defender) and scan for malware.
• Temporarily disable firewall (Settings > Update & Security > Windows Security > Firewall & Network Protection) to test.

Update Windows

• Go to Settings > Windows Update > Check for Updates. Install updates.

Contact Support

• If unresolved, submit a ticket via Support@gigapeak.co.uk 
• Provide: Windows version, network settings, troubleshooter errors, and details.

General Tips

• Avoid personal routers; they interfere with Gigapeak’s network.
• Test with another device to isolate the issue (device vs. network).
• Take a screenshot of errors (see Screenshot page) and email to Support@gigapeak.co.uk