thanks for the solution. I confirm that with this new firmware it works without problems

@Kevin_Z Hello again, I downgraded the C80 thinking it would work, however the problem continues I try using the C80 as access point mode, connected from another router, and the internet is now...

@Kevin_Z Is there a guide on how to downgrade while solving the problem I have? I really need it since I do work from home

I think it was the January 2021 version or March 2021 hahaha dont remember

@Kevin_Z 1.5.7 Build 210308 Rel.60033n(5553) So, what version can i use?

@Jarax Help 🥲 Is there a manual that tells how to downgrade? I have installed with previous versions but it says that the file is invalid. It does not allow it