@SamTeck Follow this thread's suggested actions.

@Rumsiki As seen from the Screenshots you're not receiving a valid LAN IP address as well as any DNS IP address on your Mac when you're connected to TD-W9960. For some reason DHCP server on VR1600v...

@CR.Chander I just noticed that your device is C5 v4 which FW is targeted for ISPs. It's quite possible that's the reason you don't see the auto-connect printer list. The other possible reason for...

@Rumsiki Connect your Mac to the second AP (TD-W9960) and post only the screenshots from your Mac including Wi-Fi DNS tab.

@Lucane Keep your router in a well ventilated place on a firm surface to exclude overheating problems. You might try the latest beta or stable FW for C6 v2 from this post according to your FW region....

@Rumsiki The flashing light is normal - it means that you're not using DSL port (WAN port in Wireless Router operation mode). Actually you don't need these ports connected since you're using the...