The Router and Repeater are in two different floors of the house but the main repeater page says it has a 90%-100% Connection. "Signal Received From Main Router/AP: 90%" I´ve resetted the Repeater...

My Repeater loses its Internetconnection and after I log in into the Settingspage I find a log like this mostly: https://i.imgur.com/LulxSbY.png In Chrome I get "DNS_Probe_Finished_No_Internet" or...

DNS probing fails and kills off my internet, I´ve rebooted and resetted the device too often to even count and i am losing all hope. Wifi itself has a connection of 80-90% (says the main repeater...