Member Avatar for rcolelli84

I have a new Network Everywhere router, product NR041. After doing many speed tests on my computer and coming up with just over 1 Mbps speeds, I decided to check the other PC speed, and was astounded to find it was above 4Mbps. Is there any possible way to even the speeds out? By the way, this PC (slower) is in port 2 of 4, the faster one is in port 1. Thanks in advance :mrgreen:

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Quick summary and likely causes: when one machine on the same router consistently measures much lower Internet throughput than another, the common culprits are NIC driver/settings (duplex or offloads), faulty cabling/port, router firmware or per‑port QoS, or a local software/process saturating the link. correctly pointed at NIC speed/duplex and at router configuration — the checklist below goes deeper and orders tests from easiest to most definitive.

Checklist (fast to slow)

  • Verify link negotiation: open Local Area Connection -> Status and confirm the reported Speed (should show 100 Mbps for a 100baseT link).
  • Force speed/duplex: in Device Manager -> Network Adapters -> Properties -> Advanced, set Speed & Duplex to 100 Mbps Full Duplex instead of Auto.
  • Update/roll back driver: install the latest NVIDIA nForce LAN driver or try the vendor driver that shipped with the board.
  • Disable TCP offloads: in the NIC Advanced properties, turn off Large Send Offload, TCP/UDP checksum offload and similar options (some nForce drivers expose several).
  • Test LAN throughput (isolates router/ISP): run an iperf server on one machine and the client on the other. Example:
    
# on one PC
iperf -s

on the other

iperf -c <server_IP> -t 30


- Check background traffic: examine Task Manager (Networking tab) and any P2P/antivirus/update services that could be using the line.  
- Inspect router: check per‑port link status and error counters, try different ports and cables again, reboot router and consider a firmware update or factory reset if the router exposes QoS or port‑bandwidth features.

If those steps fail, try a different physical NIC (PCI or USB) or boot a Linux live CD to rule out Windows/driver problems. Note: public speed tests can vary by server and time of day, so use local LAN tests and multiple Internet test servers to isolate where the bottleneck lives.

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Member Avatar for w1r3sp33d

Unless the router is broken or has a bug it shouldn't matter which port you use. To confirm this swap the two pc's and run the speed tests again, I suspect the faster machine will still be the faster machine.

I would check things like NIC speed and duplex, and MTU size in the NIC properties of the pc's. Maybe someone else has a more definitive answer on this one?

Member Avatar for rcolelli84

Yea, the slower speed PC is brand new with an nForce nic card. I switched the cords and the issue is in the router. Whichever PC is in slot 1 gets the higher speed. It's not a big problem, as the other PC is for my sister and she just chats and surfs, while I play online games and sometimes host FTP servers. I'm just curious now to if there's a way to regulate the speed to distribute evenly, if ever needed.

Member Avatar for zeroth

Assuming you switched the cables at the router end and tried them in different ports, you should then know if you need to address the router configuration, which should be available through the web according to the instruction manual. For example, do ports 3 and 4 exhibit the same characteristics?

commented: helpful, thanks +1
Member Avatar for rcolelli84

Well after a day of messing around with it, i figured out that my pc is slow no matter which port it is in. At first, it had the 4mbps as well as the other when i switched its ports, but now no matter what port it is in, it hangs around 1.2mbps. Is there any way I can find out why my PC isnt getting the full speed it should be? The other pc is getting the 4mpbs no matter which port it's in. The NIC card is an NVIDIA nForce network controller, and im not sure what's in the other one, but it is an HP Pavilion 513n. Also, both PCs have XP home sp2.

Member Avatar for rcolelli84

Just wanted to leave an update and report that the PC is still only getting about 1200Kbps. I have tried just about everything I can think of to resolve the solution, but my speed remains the same. Any ideas???

Member Avatar for rcolelli84

:?: Hello? Anyone?

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