Can connect (cable/wifi) but no internet

Suddenly the computer is not able to connect to internet, sometimes I can connect to router, but never to actual webpages. On the phone and other PC, internet is working fine. If Ethernet cable is connected, it shows unidentified network. If wifi - connected, no internet.

Just spent 4 hours trying various tips like: win - CMD - ipconfig release and renew, which both bring up errors, DNS change to automatic or 8888/8844. Uninstalling adapter in device manager and scanning for changes, nothing helped yet. Also did a factory reset on router.

Thanks for the help.
 
Which version of Windows and what is the Make/Model of your router?
 
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