u/Bjorglaf

Image 1 — Need help - "Cant reach DHCP server"
Image 2 — Need help - "Cant reach DHCP server"
▲ 2 r/ethernet+1 crossposts

Need help - "Cant reach DHCP server"

Hey hey people of reddit, I was hoping that the ancestral posts of people on this subject would help me fix the issue but nothing seems to be working.

For context, the ethernet connection was working fine and dandy (for more than 1.5 years now without any such persistent issues), and despite no restarts, shut downs or anything, the title message has simply popped up and decided to make itself home...

What puzzles me even more is the fact that nobody mentions the issue message changing back and forth from "no cable detected" to "can't reach DHCP Server".

The network driver is Realtek Gaming 2.5GbE Family Controller, and I also have the WiFi Module, but the connectivity of it is iffy due to the location of the router so i want to fix the ethernet.

To add to the context, a list of things that have been tried from my side:

  • Ipconfig release and renew, neither worked
  • Multiple restarts of the router and PC
  • Shutting off all electronics connected to the WiFi
  • Trying a manual re-rout of the IP so the PC has a more direct line (doing it with no prior IT experience, when it showed no results immediately restored previous settings)
  • Checked DHCP services settings, all is working there
  • Restarting the network card (if that's the name of it, sorry)
  • Checking the Ethernet cable via connecting it to another device. (the cable works)
  • Reset the damn cmos, still didn't do anything.

And there's also the weird "issue" of the Ethernet light blinking yellow twice in rapid succesion and then dropping completely.

Would love to get some insights from people smarter than me!

EDIT: Solved! Thanks to a suggestion i tried re-pinning the cable from my PC to a laptop, who showed no problems connecting to the ethernet and once i tried connecting it back to the PC to write that the cable is not the issue, it just connected to the ethernet? No clue what helped...

EDIT 2: UNSOLVED! Despite everything going back to normal, this morning when booting the PC it once again decided to die, looking for new solutions; added most recent step to the "tried" list.

EDIT 3: ???? Randomly connecting the PC directly to the router via the same "faulty" cable forced it to connect properly, and when i moved to connect the cable once again to the usual extender port, it worked like usual. No clue what the fix was, hope I will never have to think about it ever again.

u/Bjorglaf — 4 days ago