@Marvin_S Yes I know those articles are for other models but I was just referencing them as examples that TP-Link have provided instructions to do this for other models. It's not as if it's a "hack"...

@Marvin_S Hello There are several TP-Link articles about accessing a recovery option on routers, including these: How to use firmware recovery on the Pharos products | TP-Link How to recover the...

I purchased this router second hand online and I didn't know it had specific ISP firmware installed. I can log on to it OK and change settings etc but, if I do a factory reset, it reverts back to the...