@samwardill Hello, to build the mesh network, the 2.4GHz and 5GHz use the same SSID and password, no option to make them separate from each other. May I know why do you need to setup different SSID...

@Mitna Hello, sorry to tell you that the Deco M5 1.4.0 is not allowed to degrade to 1.3.x or below via the web interface directly; But we can do some troubleshooting regarding to the current issue....

@FNB What is the model number of your client? And what is the OS version? Please tell me the current operation mode of Deco. Is it router mode or AP mode. With main Deco connected to the modem and...

@apcameron Hello, what is the operation mode of the Deco? Is it router mode or AP mode? Try to switch the slave Deco to the main Deco and connect it to the modem directly and verify whether it works....

@NavarroOne @Potato55 Hello, my colleague Brook has replied to you. Please check this thread (page 3) to get in touch with him and try to fix it. Good day.

@LucasMelk @Alister55 Thanks for your updates, glad to hear that the Deco works great after the upgrade. You can enjoy the internet with the Deco units. And we are actively looking into this issue...