@Golfer2019 dependent on your ISP, you'll need the connection details like a username/password. You should have these stored on the ASUS. You'll also need to change the Decos to Router mode rather...

Hi, Any updates please? It's been 5 months since this response...

@IanMoone we have a lot more than 12 devices and have manually run the Network Optimisation option and it's been fine, so strange you'd get that message.

@itsgroovy I've used BT, Plusnet, and EE without issue with my own equipment over many years. The only thing I'd advise is paying the £8 (or whatever it is this week) for their own router should you...

@STCat You need to use the username and password for your current ISP's service, not a generic BT one. I have the M5 connected in the same way as you are having issues with and works fine with my...

@Kevy This is the forum for Deco devices, might be best to post in the Cable modem/Router series forum