I reset my owner password on tplinkcloud.com. When I sign in with the new password to the Deco App on my phone, I get the message "Couldn't find deco, something went wrong with the cloud service, plea

I have 3 Deco x20. How do I assign a static IP to the 2 slave units? The 2 slave devices do not show up in the address reservation list. They are getting their IP from the DHCP server of the Main X20