My problem is that when I try to connect to internet through Wifi it says Limited connection and troubleshooting says that Wifi IP configuration is invalid, but when I use cable the connection is fine. It all happened after I plugged ethernet cable from router to a new PC and if I connected it back to router few days later I got that problem with all devices like phones and laptops. My ISP told me to get a new router, but when I change under IPv4 properties from automatical to following: IP address: 192.168.1.101 Subnet mask: 255.255.255.0 Default gateway: 192.168.1.1 DNS: 192.168.1.1 Alternate DNS: 18.104.22.168 with that I get like 1-2Mbit connection which is slow and I'm not sure that it's safe to use. I have also tried to restart router many times. Can anyone help me to solve this?