@Joseph-TP thank you for your response, yes i have received an email with created ticket to support. Regarding the guest network - its the same when i set it up and then click save it throws...

I have configured 2 wifi'es 2.4 and 5ghz for a long time. Yesterday 2.4ghz suddenlly disappeard. I was trying to reconfigure it however with no luck, when: 1. i run quick setup (with configuration...