I have a TP-Link TD-W8961ND V3 router and after doing a smart scan it said I should update my router’s firmware. So I updated the firmware to Build 150707 Rel.23872 but it’s still telling me to update my router.
You could contact TP-Link support directly and get the help you need or you could replace your router with one that has no known security vulnerabilities.
Imagine what could happen to you if Avast didn’t have this feature and you unknowingly became a part of a hacker’s botnet because you used this router and he then used your system for malicious purposes.