Every time I boot or restart my pc, Ethernet doesn't work because for some unknown reason the default gateway is set to 0.0.0.0 instead of 192.168.0.1. Then I have to go to settings -> network and turn the network off and on again, and then Ethernet works normally - until the next time I boot or restart the pc.
What's going on? Why is it doing that? What can I do about it?