Quick Answer

A "Network Not Detected" error in South Africa is most commonly caused by a faulty or loose network cable, a misconfigured network adapter driver, or an ISP-side connectivity issue. Working through a short sequence of checks restores connectivity in the majority of cases without needing a technician.

Step-by-Step Fix for Network Not Detected

Start with physical checks before diving into software. Inspect the ethernet cable between your PC and router or wall port for damage, and reseat both ends firmly. On the PC side, check that the NIC port light is active. If you are on Wi-Fi, confirm the adapter is not physically switched off via a hardware toggle or function key. Next, open Device Manager on Windows and expand the Network Adapters section. A yellow exclamation mark on your adapter indicates a driver problem. Right-click the adapter and select Update Driver, then restart. If the adapter does not appear at all, it may be disabled in BIOS or the physical card may have seated incorrectly. In BIOS, check that onboard LAN is enabled under the advanced or integrated peripherals section. For Wi-Fi adapters, ensure the card is fully seated in its M.2 or PCIe slot. After confirming hardware and drivers, open a command prompt and run ipconfig /release followed by ipconfig /renew to force a fresh DHCP lease from your router. If that does not resolve it, run netsh winsock reset and restart. For ISP-specific issues common with South African providers, power cycle your router by unplugging it for 30 seconds before reconnecting.

Frequently Asked Questions

Why does my network show as not detected after a Windows update? Windows updates occasionally replace or corrupt NIC drivers. Roll back the driver in Device Manager by right-clicking the adapter, selecting Properties, then Driver, then Roll Back Driver. If rollback is greyed out, download the latest driver from your motherboard manufacturer''s support page and install it manually.

My router shows all lights normal but PC still says network not detected. What next? Test with a different ethernet cable. If the cable is fine, try a different LAN port on the router. If those check out, test the PC''s NIC by connecting to a different router or using a USB ethernet adapter to isolate whether the fault is the onboard NIC or the router port.

Does loadshedding cause network not detected errors? Yes. Routers and ONT devices can develop configuration corruption after abrupt power cuts during loadshedding. The fastest fix is a full power cycle of all network equipment in sequence: modem or ONT first, then router, then PC. Wait 60 seconds between each step.

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