Case: Whatever the settings scheme, using an old TP-Link TL-WR340G as a second/slave router doesn’t work, showing various symptoms.
- WAN or LAN port LED not lit
- Router not assigning IP addresses (when DHCP is enabled)
- Router not getting an IP address
Perform a loopback test:
- Unplug any Ethernet cables from the router.
- Power on the router.
- Make sure the router is done booting.
- Connect an Ethernet cable – one end to the WAN and the other to the a LAN port.
- LED’s on the connected WAN and LAN ports should be both lit.
- If needed, do this test for all LAN ports.
- If the LED’s don’t light up, either your router or the switch in it is fried. Get a new router.
- If only your WAN is working, use it as a wireless repeater.
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