Yesterday, out of nowhere, my PC simply stopped detecting the internet. The network troubleshooter initially reported an inability to connect using a manually assigned IP address (which is odd, since my IPv4 and IPv6 settings are configured for automatic assignment), but later it just started prompting me to restart the PC. I tried to set IPv4 by myself according to ipconfig data, and set google DNS, but it did nothing. The cable is fine; everything works when I plug it into my laptop, for instance. The PC's LAN port isn't damaged—the indicator lights are on, confirming this. I’ve restarted both the router and the PC numerous times, but nothing helped. I also reset the network settings repeatedly to no avail. I noticed something odd, too: the DNS and DHCP Client services have completely stopped working and refuse to start, even with the startup type set to "Automatic" (Error 5), whereas the RPC service is running fine(and still, when im trying to promt a ipconfig /release in cmd, it says that RPC service is unavailable). I’ve already reinstalled the network adapter drivers from a flash drive. The only thing is that I accidentally deleted the WLAN adapter without a backup during the process, though I don't think that plays a role here since I use a wired connection. There haven't been any Windows updates recently, and I disabled the windows brandmauer a long time ago. Also, when I try to share the internet from my phone to my PC via a wired connection, it also shows "No internet access.". Im on Windows 11 and my motherboard is gigabyte h610m k ddr4. Sorry if anything is written incorrectly or unclearly; I’m using a translator to write this post, and I’m actually a pretty casual computer user who doesn't understand much about it..
Source: r/techsupport · by /u/processerr