Problems after Changing router

[wieluk]

Hey I changed my router and before it was working very good for a long time but now I get this error. The esp8266 seems to connect to a IP that it should not even be able to connect to also on my router there is no connection. Do you know what I could try?

Connected, IP address: 169.254.68.5
Scale Set
Scale Zeroed
Attempting MQTT connection...failed, rc=-2 try again in 5 seconds
Attempting MQTT connection...failed, rc=-2 try again in 5 seconds

[wieluk]

I really don't understand this ... I splitted into 2.4gGhz and 5 still doesn't work but when I put the esp in the Guest Wlan it does connect.