Hi no I haven't as I cannot seperate the frequencies on my hub 3 as it says that i should not have the same password as the guest network which isn't even turned on
This should be a doddle. Do it on a pc/laptop rather than a phone. When you go into the settings and erase the 2.4 SSID name and change it to anything you want (end it xxxx2) then erase the password and type in any new random one you like and have just created, then repeat it for the 5GHz network (use xxxx5 and the same password you used for the 2), then save/apply changes and away you go.
-------------------- Services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired 2 WiFi,) SH2 in modem mode with Airport Extreme Router. On VIVID200, Talk Anytime Phone, x2 Mobile SIM only iPhones.