Avast One network scan issue - open port - how to fix - Linksys Router

Device is accessible from the internet
Open ports on this device could allow attackers to remotely access it.
Windows 11 and Linksys 22783 - I couldn’t find remote access permission on router or open ports?
Get problem every time I log on and network scan is completed.

There should be details that explains which port/service is accessible; also, it depends on what device(s) have that alert.