Jan 21, 2019. #1. I have an Asus RT-N56U router. All the wireless connections work fine. None of the 3 wired connections work anymore. Laptop, DirecTV media, Xbox One all stopped working. A long and trusted temporary Ethernet patch cable could help rule out your Ethernet cabling, which is naturally suspect. Disconnect all LAN ports before testing with the trusted cable. Are all router LAN connections listing as 1 Gbps, if they should? If there is exclamation mark on the device, you can download the latest driver for Network adapter on the ASUS support site and install. 3. Enter Network and Internet for troubleshooting. No exclamation mark on Device Manager means normal working of network adapter. The network problem might be caused by system settings or other internet ASUS Router Not Working? Here's How to Fix It By Anup Thapa February 3, 2023 The most common complaint I've seen from ASUS router owners is that they can't access the router dashboard on the browser using router.asus.com. In some cases, directly using the router's IP address doesn't work either. rXw6F.