Before more people respond and say that an 8 years old firmware has security holes and bug and that @Digiteeruk should definitely update the firmware of the Archer C9 v1, let me say again that the last firmware version of the Archer C9 v1 is from 2015.

Therefore, the recommendation should be that you should replace the Archer C9 v1 with another, more recent router and not that he should install the current firmware of the Archer C9 v1.

Running an Archer C9 v1 on 8+ year-old firmware is not recommended due to potential security risks and performance issues. It's best to update to the latest supported firmware for improved stability and security.

Running an Archer C9 v1 on 8+ year-old firmware is risky due to potential security vulnerabilities. It's recommended to update to the latest firmware or consider a newer router.