@rmoronf For two Deco units, you can just connect them by Ethernet cable. Is that what you had? If you added more Deco units, perhaps you added a switch, or replaced switch you had with new one? If...

@David-TP I have Deco M9 Plus and I run my Deco mesh in Access Point mode. On the bottom of my Main Deco M9 Plus there is label with the MAC address printed on it. I see same MAC address in Deco app...

@levlim I am thinking you are allowing guests connect to your Deco Main Network, based on what you described. If this is the case, the fix is to let your guests connect to Guest Network instead.

@Ratsima Give that to your condo management. See if it works. I have Main Deco connected to ISP Router. In Deco app, in Web interface and on the label on the bottom of Main Deco I see one and same...

@Ratsima If you have access to Deco app, what MAC address it shows under Main Deco page should be its WAN MAC address. Just checked that with my Deco mesh and ISP Router. Also, it is the same MAC...

levlim wrote Hi I use my deco guest for my customers. Now I need to blacklist one of the clients. When I click the "+" I get a list of all the devices that have connected to the guest account. Is...