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XFi wired connection slower than wifi

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New Poster

XFi wired connection slower than wifi

Hi,

     I currently have an internet plan for speeds up to 600mbps.  I understand it is unlikely I will get that speed.  However, my iPad on WiFi gets around 500 while my desktop can only manage about 240, half as much, on a WIRED connection.  The NIC is 1Gbps capable.  On Windows 10, network status is showing 1000/1000 Mbps link speed.  I bought a brand new Cat-6 cable and it makes no difference.  From reading other posts, my CPU is NOT overheating or anything.  I have reset the XFi cable modem, restarted the PC, made sure the driver for the NIC is up to date and still no luck.

    I have also switched ethernet ports on the XFi cable modem.  How can I get speeds on my desktop to be similar to those on my iPad?

 

Thanks,
Rich

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New Poster

Re: XFi wired connection slower than wifi

Same for me.  My Wifi is smoking fast, up to my plan speed of 275mb download.....however the wire connections to PC's is only 80mb or so.  I do not see any response from Xfinity regarding your post. Ugh!

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New Poster

Re: XFi wired connection slower than wifi

I am having the same issue. I can get 600+ Mbps on WiFi, however via wired connection I top out at 300 Mbps... but mainly in the range of 220-280 Mbps. Any new info on how to fix?

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Diamond Problem Solver

Re: XFi wired connection slower than wifi

You can’t compare wireless vs wired devices. 2 different methods, 2 different ways devices connect, a pc’s wired connection is completely different than its wireless card/adaptor. Too many variables in what can impact a wireless signal. Every device is different, every household is different.

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New Poster

Re: XFi wired connection slower than wifi

You are absolutely correct that every household is different. The problem is that WiFi speeds are faster than wired in our situation... which should never be the case. Achieving speeds of 200+ Mbps on wired, it is clear the network is negotiating at above 100Mbps... so there should be no reason, assuming cables and network card drivers are current, to not achieve the speed one is paying for on a direct wired connection.

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New Poster

Re: XFi wired connection slower than wifi

Thanks...I feel the same way.  If your Ethernet Adapter is GB capable....and CAT 6 ENet cables are used.....and there is no dumb switch being used that might be limited to 10/100 mb........It appears that the physical ENet ports on the back of the XFi are the issue......or the XFi might have settings internally that limit the speed on these ports. I currently have my PC connected directly to the XFi.....and still only getting 60-80 mbps download speeds on any given day.....(plan speed is 275mbps) on multiple PC's that I have tested.   I will call Xfinity to discuss. I'll bet they tell me to upgrade to 600 mbps......if I want 200mbps.  I'm ready for a fight !  I can't believe that Wifi could have greater (more dependable) speeds than a gb wired connection.

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New Poster

Re: XFi wired connection slower than wifi

It could very well be being held back by PC hardware. 1 gig speeds take at least quad cores and a few gigabytes of RAM. I know my GF's 2500k couldn't hit the 940-950 Mbps cap and would only hit 650-660mpbs max on speedtests.

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New Poster

Re: XFi wired connection slower than wifi

Same issue occurring in both my Xfinity locations.  Hard wired, I used to be able to get pretty close to plan speeds.  Lately, with the Xfinity modem hot spot I can get close to 300Mbs, but Enet only about 40.  The Enet Adapter on my laptop has negotiated a GBit connection, and connected directly to the Xfinity device, I should be getting much better results.  Unfortunately, this impacts my downstream routers too.  I think it's a contrived situation to reduce performance of 3rd party routers and try to get customers to rent Xfinity repeater pods