Internet speed bottlenecked at PC?

jtpetch

Honorable
Jan 16, 2014
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10,690
Hi, I'm having an issue with my internet speeds at my desktop PC.
I have done multiple speed tests with multiple sites, and they all never go past ~15.5 mbps download speed.
I have Xfinity internet, and should be getting 50 mbps.
This is my connection:
Standard Xfinity modem/router combo (downstairs)
Ethernet cable to ethernet-to-mains adapter in the wall
(Through the wall mains)
To another (multi port) ethernet-to-mains adapter (These basically use the wall wiring as an ethernet cable)
To my PC, laptop, and Xbox.
Now, my first thought was the wall mains being the problem.
Well, I did a speed test on my laptop, using the ethernet, and it got roughly ~55mbps, which is what I should get.
So that rules that out.
I've also tried using a Wifi usb dongle to connect wirelessly, and after testing I still got ~15mbps (on my laptop I got ~30 mbps, normal for wireless)
The internet was working perfectly fine previously, but after I unplugged the whole setup (to have electric work done), and plugged it back in, it did this.
This is my PC. Nothing I see should be bottlenecking it, as my mobo supports 10/100/1000 mbps speeds.
So, it has to be some setting in Windows, or something of the sort.
Does anyone have an idea of what's going on here? I really need this fixed as my college work is done online, and I'm having to do it on my laptop right now.
Thanks for your help!
 
call your cable company there are spec in you cable must be in to output proper signal or the modem will not read your signal right and you feel like you surfing on 56k , eg my signal was to strong and they came and put an filter in between the modem and the cable and like magic all internet problems were fixed.
it was this here:
http://www.amazon.com/Filter-MoCA-Cable-Coaxial-Networking/dp/B00DC8IEE6
but if you call them up they will come out and mesure it for you for free and put apropraite filter on there.

 


I have called the cable company about it, not much help.
But, it has to be an issue with my PC, as the laptop I have, connected in the exact same way is getting full speeds.
I've switched cables and adapters around, even plugged my PC into the modem itself, nothing changes.
 

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