Member Avatar for linuskmj

I recently fixed my new computer, and connect to the internet via a router. However, there seems to be a problem with my internet connection as after a period of time, my internet simply dies (with no data being transferred and the whole connection seems stagnant). Usually the connection is restored when I use the windows LAN repair utility. Anyone has any idea what is happening? I don't have such a problem with other computers on the same router, so its probably the new computer.

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  • Latest Post Latest Post by BeastOverlordH6

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The fact that Windows "Repair" reliably restores connectivity suggests a host-side DHCP / TCP-IP stack or NIC-level transient problem rather than a router-wide outage. 's note about physical/driver causes and 's suggestion to check the router are both reasonable starting points, but the symptom pattern (only the new PC affected; repair fixes it) calls for focused tests that do not duplicate suggestions already posted.

Recommended diagnostic checks (capture what happens when the link dies):

ping -t <router-ip>          # watch for lost replies to the gateway
ping -t 8.8.8.8              # confirm external reachability
ipconfig /all                # record IP, DHCP server, lease times
arp -a                       # spot duplicate-address conflicts

When the connection stalls, compare the output above to the working state. Look in Event Viewer (System log) for DHCP or TCPIP errors timed to the outage. If the IP address changes or the DHCP lease shows odd timings, that strongly implicates DHCP or lease/renew failure.

Targeted fixes to try (safe, reversible):

  • Disable adapter power-saving and CPU C-states that can suspend the NIC (Device Manager -> adapter -> Power Management).
  • Temporarily set a static IP outside the router DHCP pool to rule out DHCP/lease/duplicate-IP causes (do not duplicate an existing address).
  • Turn off NIC offload features (Large Send Offload, etc.) in adapter advanced properties if the adapter supports them.
  • Reset the stack if persistent: 
    netsh int ip reset
netsh winsock reset

If these steps do not isolate the fault, swap the Ethernet cable and test with a different NIC (USB-to-Ethernet or PCI) to rule out a failing onboard port. Microsoft command references: ipconfig (https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/ipconfig) and netsh (https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/netsh).

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Member Avatar for SuperSam

Hi,

Call your router manufacturer and have them check/configure the router.

Sam.

Member Avatar for BeastOverlordH6

Aha, try a different port on the router. Methinks one of the ports is corrupted. This would be a software/firmware issue otherwise, where your new computer has a problem with the ethernet port drivers/the ethernet port itself. I highly recommend updating the drivers in this sense. Best of luck, suh.

Member Avatar for linuskmj

There can't be anything wrong with the router as my laptop is connected via the same router.

How do I set the PC to connect via a different port?

Member Avatar for BeastOverlordH6

Ah, I was thinking this was a wired router. If you're facing problems with one computer on wireless, chances are this one computer in question has issues with its wireless card/drivers. When I was mentioning the ports, I was referring to a series of ethernet ports on the back of the router.

Member Avatar for linuskmj

Ah, I was thinking this was a wired router. If you're facing problems with one computer on wireless, chances are this one computer in question has issues with its wireless card/drivers. When I was mentioning the ports, I was referring to a series of ethernet ports on the back of the router.

Oops I forgot to mention that both my computer and laptop are connected via ethernet. Ok, I will switch ports around and hope it works thanks :)

Member Avatar for BeastOverlordH6

For the reference After you change anything involving your ethernet ports on the router, I highly recommend unplugging your 'net modem's power (cable, DSL, etc.) for around 5 seconds, then replugging, so the proper addresses are reset for the router's ports/wireless.

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