I can't get my internet speed above 100mbps

[LouTCS]

I recently switched from a 100mbps network to a 500mbps network. But when I check my internet speed, it is stuck at 100mbps. I'm using a CAT5e ethernet cable that is directly connnected to my modem. My internet NIC is realtek PCIe GBE family controller (8111G) with an up to date driver. When I check the speed and duplex, there are only 10Mbps, 100Mbps, and auto detect options. How can I get my internet speed up to 500Mbps? Thank you very much.

 

[studmoose]

Have you done a speedtest check that just confirms your router outbound?

 

[LouTCS]

Have you done a speedtest check that just confirms your router outbound?

I'm not using any router connection, my ethernet cable is directly connecting to my desktop and my modem. I have also done a speed test, it says that my download speed and upload speed is around 95mbps.

 

[bill001g]

If we assume you have paid your ISP for faster than 100m and your modem has gigabit ports then the problem is likely a defective cable. Try another cat5e cable, cat5e can easily run 1gbit but if it is defective it will negotiate down to 100mbps.

 

[LouTCS]

If we assume you have paid your ISP for faster than 100m and your modem has gigabit ports then the problem is likely a defective cable. Try another cat5e cable, cat5e can easily run 1gbit but if it is defective it will negotiate down to 100mbps.

I don't think my ethernet cable would be a problem as it is bought quite recently.