Hi there, thank you for reaching out. Both Asus and Netgear network devices are known to have issues negotiating the link on the Ethernet port of C-5 hubs. There is a fix that is deployed automatically within 24 hours after the hub is first connected. If you'd like to speed up the process, you could access the following path from your local network to make the configuration change, now:
YourHubIP/hub/advanced/network/lanautonegconfigenable
Please replace YourHubIP with actual IP address of your hub.
Once the configuration change is applied, go to Settings and click "Reboot Hub".