Are your devices randomly disconnecting? Is the Linksys app showing "No Internet" even though everything works? Is the guest network laggy? These are often firmware bugs. The changelog for the E9450 frequently addresses:

: You will need the router's admin password. By default, the username and password for the , and the default IP address is 192.168.79.1 Stable Connection : It is strongly recommended to use a wired Ethernet connection

The E9450 is an AX5400 router, designed for Wi-Fi 6 efficiency. However, early firmware versions may have bugs related to OFDMA or MU-MIMO. Updates fine-tune how the router handles multiple devices streaming 4K/8K video or gaming simultaneously.

Use this method if you need to install a specific version or if the automatic check fails to find the latest release. Linksys E9450 (US model) FAQs

Occasionally, Linksys adds features like enhanced QoS (Quality of Service) settings or improved cloud management via the Linksys app.