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gigabit slow

New Poster

gigabit slow

gigabit service, but have only managed to get close to 250mbps down. Using comcast modem / router - what's the deal?

Regular Contributor

Re: gigabit slow

Which router do you have?

 

Have you connected with an Ethernet cable to test the speeds?

 

Which site are you tesing on?

 

Here's are a couple that are reliable.

http://www.speedtest.net/apps/desktop
https://sourceforge.net/speedtest/
http://speedsmart.net/ - this one's pretty lightweight and scores a bit slower than actual but, still a good ballpark
http://www.dslreports.com/speedtest - this one is pretty consistent

New Poster

Re: gigabit slow

TG3482G modem, wired.

 

speed tests using xfinity's, speedtest.net.

Regular Contributor

Re: gigabit slow

https://www.reddit.com/r/Comcast/comments/789cub/gamingstreamingvoice_issues_with_the_rented/

 

Looks like it's probably related to the Puma issue. Pretty sure the modem firmware hasn't been upgraded to get rid of the issue either.  I would probably say swapping it for something else or purchasing your own.  There's 3 D3.1 models out there and they're all similarly priced around $160.  I went with the MB8600 and haven't had any issues with gig on it directly connected at least.  When testing through my newly replaced router I was having speed issues topping out at 250M.

 

When you login to your account under services is it still showing Gig?  I still don't know why there hasn't been a push to get rid of the P6 equipment due to the issues.  It may be sporadic but, 1/4 of your speed is insane considering you're paying for the modem that's supposed to be the most compliant device for the service.

Expert

Re: gigabit slow


mrumppe wrote:

https://www.reddit.com/r/Comcast/comments/789cub/gamingstreamingvoice_issues_with_the_rented/

 

Looks like it's probably related to the Puma issue. .


FWIW, the Puma 6 chipset issue is related to packet loss / excess latency / jitter, not necessarily achievable speeds.

Expert

Re: gigabit slow

I thought the TG3482G used the Puma 7 chipset.

Problem Solver

Re: gigabit slow

Yes, the TG3482 uses Puma 7 chipset. I don’t even think Puma 7 fixes it either. I believe they both have the same problem.

https://www.theregister.co.uk/AMP/2017/08/09/intel_puma_modem_woes/
Authorized Vendor

Re: gigabit slow


shaep wrote:

gigabit service, but have only managed to get close to 250mbps down. Using comcast modem / router - what's the deal?


That doesnt sound right on ethernet..  with that modem..  Can you post your signals to the forum..   Has it alwasy been this way?

-------------------------------------
Network Engineer, IP Engineer, Docsis..; the views expressed on this post are mine and do not necessarily reflect the views of my employer..

Gamer.. Living the dream one catastrophe at a time Smiley Happy ..
New Poster

Re: gigabit slow

Yes, i recently switched to the gigabit service, its been this way since day one.

 

New Poster

Re: gigabit slow

I was told im required to use the supplied router with this service, due to it being so new and the limited number of "Compatible routers"
It does say gigabit in my account. I see no options to update the firmware in the web panel.

 

eMTA & DOCSIS Software Version:2.0.2.209
Software Image Name:TG3482_2.8p13s1_PROD_sey
Advanced Services:TG3482G
Packet Cable:2.0
New Poster

Re: gigabit slow

just purchased and installed the CM1000 to test, an absolute improvement. ( peaking around 1gbps )  Im returning the rental modem.

Official Employee

Re: gigabit slow

Hi shaep, thank you for posting the update/fix to your issue and glad you are achieving the proper Gig speeds.  Please let us know if there is anything else we could assist with in the future.

 

Thank you