K

Visitor

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4 Messages

Friday, December 9th, 2022 9:24 PM

Closed

internet speed much slower than advertised

I am paying for 1.2 Gbps speed but I am getting, at best, 10% of the advertised / paid for speed.  I've double and triple check that my modem (Motorola MB861) and router (Motorola AC2600) that they are compatible with this speed.  I've also updated the firmware.  The latest speed test yielded the result of 61.67 down and 24.25 up.  This is wireless speed.  Wired speed will be less.  This is ridiculously slower.  Can someone help?

Problem Solver

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770 Messages

2 years ago

Hello. Thank you for reaching out for help with your connectivity and speeds. As someone who relies on a solid connection, I can understand the need to make sure you are getting the speeds you expect. These are way low for what you may be subscribed too, there could be an issue, with your 3rd party connection. I would suggest renting a Xfinity gateway, remove your router, and run some test with our equipment. You can also bypass your router, hardwire to your modem, and run a test, did the speeds improve? If the results do not improve then there could be a network issue. 

Visitor

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4 Messages

@XfinityBrandon​, my current modem and router are on Xfinity's list of compatible equipment for 1.2 Gbps.  They were also recommended by a Xfinity technician that I spoke with earlier.  She said she also has the 1.2 Gbps at home and she uses these modem and router.  I did try to hardwire to the modem but when I did, I can't even get an IP address so no internet.  I'm ok with renting a Xfinity gateway to test but a normal Xfinity gateway only have 4 LAN ports right?  Is there one that has more than 4 LAN ports?  Then the last question is how to go about renting one.

Thanks

Kit

Contributor

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72 Messages

2 years ago

You meant the Motorola MB8611, right? That's the same modem that I have. My router is a Linux system with dual Ethernet cards, so I can't say anything about your router. I am on the 800/20Mbps service, and I get slightly better download and upload speeds (with a wired connection).

Regarding your follow-up question about having only four ports on the router, my router only has one port for the WAN and one port for the LAN (inside the house). I feed the LAN port into an 8-port switch that feeds into various devices and other switches throughout my house. There's a minor speed penalty for each switch in the chain, but it's very minimal.

Visitor

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4 Messages

@NoGoodNamesLeft4Me​ Yes, I have the Motorola MB8611 and I have the Motorola AC2600 as a router.  Did you mean you get slightly better download and upload speeds that what you are paying for?  Or did you mean you get slightly better download and upload speed than what I am getting?

Contributor

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72 Messages

I get better speeds than what I am paying for. Not complaining. ISPs generally leave a bit of headroom, so they can do network monitoring and management. I also think part of it is having a really fast router.

Problem Solver

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948 Messages

2 years ago

Well for one that router has 4 gigabit ports, so your capped at 1000 Mbps, if you directly connect into the mb8611 and your device don't have a network card that supports over 1000 Mbps, again capped at 1000 Mbps, you have to reboot the mb8611 if you plug your device in to get it too work, that being said, when your device negotiates the link it will try to get the fastest, if it can't it will drop down and try, so on your router it would be 100 Mbps, since your getting under 100 Mbps i would check that first, i find almost all of the time its the Ethernet cord not fully seated in the socket, the sockets have lights on them, just a quick visual can potentially find your problem, a green light means full connection, amber light not so much, i live by some railroad tracks, just the vibrations from the train sometimes triggers this, the cord between the modem and router, router and device, you have to check them all... just a thought....    

Visitor

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4 Messages

@Jlavaseur​ Thanks for your comments.  I would be so happy if can get anywhere near a gig.  I will try again hardwire to the modem and reboot.  It would be very helpful if I can confirmed that I am getting a good speed at the modem then then I know the problem is behind the modem.

Problem Solver

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743 Messages

Hello @kcheng911! If you're still having trouble with your speed, please send us a direct message with your full name and address. We're happy to help! 

 

 "Search for Xfinity Support" won't work. To send a "Direct Messaging" message to Xfinity Support:

 

  • Click "Sign In" if necessary

 

 

  • Click the "New message" (pencil and paper) icon

 

  • The "To:" line prompts you to "Type the name of a person". Instead, type "Xfinity Support" there

 

  • - As you are typing a drop-down list appears. Select "Xfinity Support" from that list

I no longer work for Comcast.

Problem Solver

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948 Messages

2 years ago

@kcheng911  Exactly, I like to try the Free and easy remedies first….

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