Question why are speed test results less than 150 Mbps on a 500/500 Mbps isp?

[davidtfull]

Asus M5A97 Evo mother board
AMD Phenom II x 4 840 processor (3.2 GHz)
4 GB memory
TrendNet NIC card 10/100/1000 set at 1000 Mbps/full duplex
Connecting via Cat 6 cabling.
Firefox ESR 52.9.0
Win XP Professional Service Pack 3

We just installed Frontiers 500/500 Internet and yet the highest speeds we can obtain on any speedtest is less than 150.

down up

https://www.nperf.com/en/ 117 134
http://speedtest.googlefiber.net/ 62.5 323
https://www.att.com/support/speedtest/ 146 151
https://www.speedtest-internet.com/ 144 82
https://www.bandwidthplace.com/ 95 27
https://www.speed.io/ 144 151
https://testmy.net 144.5 0.9
https://www.elevateinternet.com/internet-speed-test 102 77
https://www.speedtest.net/settings 146 147
https://www.centurylink.com 131 145
https://www.bestbuy.com 137 22
https://www.spectrum.com/internet/speed-test 132 68
https://www.speakeasy.net/speedtest/ 143 19
https://www.fastmetrics.com 155
http://speedtest.pilotfiber.com/ 320 65
https://www.optimum.com/internet/speed-test 139 70
https://www.allocommunications.com/internet-speed-test/ 141 70
https://www.finder.com/ca/internet-speed-test 110 138
http://speedtest.tds.net/ 140 46
https://speedof.me/ 154
https://fast.com/ 98

wifi

https://testmy.net wifi 302 323
https://www.nperf.com/en/ 211 110
frontier 274 92


Frontier is stating that this discrepancy is a result of my hardware or software rather than any problem on their end. I had disabled my virus program and turned off the firewall, yet nothing changes. Even if I use a different browser I still cannot hit a higher speed. When I check the status sometimes it shows me being connected at 100 Mbps and other times at 400 Mbps. I am getting the 500/500 at the modem/router, and at times connecting at 400 Mbps but there seems to be some kind of bottle neck in the computer that I cannot isolate, preventing me from achieving these speeds within the browser.

 

[Ralston18]

My first thought is to ask about that "Connecting via Cat 6 cabling."

Where did that cabling come from?

There is quite a bit of fake and/or sub-standard cabling being sold.

Take a close look at what is printed along the length of the cable and post accordingly.

 

[USAFRet]

My first thought is to ask about that "Connecting via Cat 6 cabling."

My first thought as well.

Second thought - Win XP...