Transfer speed limit of 11 MB per second between computers on your network.
Transfer speed limit of 11 MB per second between computers on your network.
Previously, my ISP was BT with a BT Smart Hub router. Now I use Virgin Media and a Virgin Media Super Hub 3.0. The connection between the router and switch (D-Link GO-SW-5G) is different from what I had before—it's this new cable. Back when I used the BT gear, I experienced fast transfers between PC1 and PC2 (around 70 MB/s), but now I’m only getting about 11 MB/s, which feels like a 100 Mbit/s connection. The guide suggests using Cat 6 shielded cable, which seems a bit frustrating. Do they have the right advice?
Cat5e supports 1Gb/s without problems. Verify the Ethernet settings on both devices and confirm they are both operating at 1,000Mb/s (or 1Gb/s, whatever OS allows). If that's the case, the issue likely lies with the switch. You might attempt a direct connection between the two computers using Cat5e, assigning each an IP address such as 192.168.0.2 and 192.168.0.3, to test if the speed remains unchanged. This should work as long as both devices are compatible with Gigabit networking and the cable is in good shape.
PC1 displays a 100 Mbps connection while PC2 reports 1.0 Gbps. Neither device has any configuration changes, making the situation unclear.
It appears the Switch has a firmware-related problem affecting Ethernet performance. EEE activation often reduces speeds to 100Mbit/s and prevents recovery to gigabit when required. Determine if the switch is managed—check the GUI for options to disable EEE or adjust energy-saving features. If unavailable, ensure your NIC cards are set to gigabit in compatible ports; you may need to enable EEE manually or adjust speed/duplex settings.
It might simply be a coincidence. Alternatively, the router may handle EEE, and the switch is set to enable it automatically across every port. Certain equipment require full EEE compatibility, meaning linked devices must all meet that standard.
Swap the cables between the two devices. If the first PC remains at 100Mbps, it likely points to the adapter.
I switched Energy Efficient Ethernet off but the connection remained functional at 100 Mbps. When I set Speed & Duplex to 1.0 Gbps Full Duplex manually, the NIC stopped working until I reverted to auto negotiation. PC2 is operating at 1.0 Gbps, so I didn’t alter the cable between PC1 and the switch. I’ve also tested swapping the cable on and off without success.
I don't have access to specific details about the NIC model you're experiencing issues with. Could you provide more information or clarify the issue you're facing? This will help in identifying the correct model.
PC1 connects via Intel Ethernet Connection I219-V, while PC2 uses an Intel 82579LM Gigabit Ethernet Controller.