Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have a netgear prosafe 8 port vpn gigabit firewall and a netgear prosafe gigbit 8 port switch on my home LAN plus a UBEE cable modem. The connectivity of these devices are as follows... UBEE>FIREWALL>SWITCH

I have some devices connected to the firewall and others from the switch. I should metino that the UBEE has switching capabilities also. My problem is two fold. First, i need 1gb/sec speeds beginning from the firewall, through the switch, to every device that supports it. The indicators on the firewall will indicate what ports are running at 1gb/s speeds along with the GUI config. Devices connected along the way will show 1gb/s connections on their network interfaces but i have no way to accurately test this yet.

Second, i have a 30mbit/s connection coming in. Running and the speedtest from my ISP when i am directly plugged into the modem gives me results in accordance with what i am paying for. When i connect to any of my other devices, either the firewall or switch, i get half of the throughput.

I have looked in the firewall and switch confiiguration menus and cannot find anything that would be limiting my speeds. The lights on both my firewall and switch are showing 1gb/s connections whic leads me to believe my cat5 lines are ok, but i have not extensively tested them to make sure otherwise.

Does anyone have tips for me to realize the potential of my network? Thanks for the help


share|improve this question

migrated from Oct 9 '12 at 12:05

This question came from our site for professional and enthusiast programmers.

If you include information about the OS you are running, people will be able to suggest tools for troubleshooting your lan. – Ярослав Рахматуллин Oct 9 '12 at 13:06
Are you using Cat 5, or Cat5e? I thought Cat 5e and not Cat 5 supported 1000 Mbps? – j_bombay Oct 9 '12 at 13:45
I have cat5 cables for the time being and i realize that i need to go with cat5e or cat6 for gigabit speeds. One problem though, when i connect my computer with a cat6 cable directly to the cable modem, I get the expected speeds. When I unplug from the modem and connect to the firewall using the same cable my speed is cut in half. Logically this leads to a firewall conf setting but i cant, for the life of me, figure out what it could be. Or perhaps there is another problem? vr, Erik – Erik Oct 9 '12 at 21:21

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.