WLAN connects fine, but AP = default gateway is unreachable

On my Laptop I can reliably connect to my WLAN. The connection is stable. I get an IP address by the DHCP on the Access Point (AP). Everything looks fine, but there is no route to the IP of the AP itself, which is my default gateway and first DNS to the internet. AP IP is 192.168.0.1 My IP is 192.168.0.178 IP Mask is 255.255.255.0 ping 127.0.0.1 is OK ping 192.168.0.1 yields host unreachable mtr 192.168.0.1 yields no route to host ip addr yields 1: lo: LOOPBACK,UP,LOWER_UP mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 1

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