@troppont . Are you using the TPG router because you need the VOIP phone or you need the RJ11 connector for FTTB/FTTN? The X60 can do all router functions, even set VLAN ID.   It seems like the PCs only connect to 5GHz band. Can they detect both bands? You should see all networks detected by PC at the time you connect. You can use this command on a wifi PC to check all the surrounding networks. netsh wlan show all   Your equipment is all strange if it doesn't work when both bands are enabled. Electronically, they should only be aware of the band they've been designed to detect. Does the Deco allow different names for 2.4 and 5 bands? The website mentions seamless roaming and adaptive path selection. Wondering if these might affect your devices.   ... View more