@PhilWin You can use the wifi analyzer to scan the signal strength from the main Deco and choose a good location for the slave one. Or you can use the signal strength icon between the 2 Decos on the...

@Kaczo Please connect the 3rd Deco to the modem and set it up as the main Deco to update the firmware. Click here to get the instruction to configure slave Deco as main Deco.

@Badgermac The Deco M4 supports guest network in AP mode, and you can customize the network name.

@Ned01 If they cannot access each other locally, try to disable the firewall or antivirus software on your computer. Meanwhile, you can ping the computer which installed the Calibre ebook library...

@Ixnay Yep, we have reminded our R&D team and our engineers are working on it. Please keep an eye on official website for more updates.

@Jesper Thanks for your reply. May I know how many devices connected to the C9 at once? Please show us a screenshot of the DHCP client list page. What is the current internet connection type and DHCP...