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xfinity TG862G (xb2) modem slow speed

New Poster

xfinity TG862G (xb2) modem slow speed

when i use Motorola Corporation SBG6580 modem i get 150mbps down but when i use the xfinity TG862G (xb2) modem i only get 35mbps down, i would like to use the xfinity modem why am i getting slow speeds on that modem?

New Poster

Re: xfinity TG862G (xb2) modem slow speed

Diamond Problem Solver

Re: xfinity TG862G (xb2) modem slow speed

If you want to keep using the Comcast gateway, upgrade to a different model, that one is old

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New Poster

Re: xfinity TG862G (xb2) modem slow speed

@CCAndrew i understand that but the modem should be able to do the 150 down but i only get 35mbps down and 4 mbps up

 

Product Features Wireless Gateway 1

(Model Numbers: TG852G, TG862G, TC8305C)
Wireless Gateway 3

(Model Number: TC8717C)
xFi Wireless Gateway

(Model Numbers: DPC3941T, DPC3939, TG1682G)
xFi Advanced Gateway

(Model Number: TG3482G, CGM4140COM)
Four Total Gigabit Ethernet Ports Yes Yes Yes No (2)
Dual Band WiFi No Yes Yes Yes
Maximum Data Throughput 150 Mbps 700 Mbps 700 Mbps
(275 Mbps for DPC3939)
1 Gbps


https://www.xfinity.com/support/articles/broadband-gateways-userguides

Diamond Problem Solver

Re: xfinity TG862G (xb2) modem slow speed

You’re absolutely right but there’s (per your attachment) been 5 newer models since. Swap it out and see what happens

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Expert

Re: xfinity TG862G (xb2) modem slow speed

There is a signal / connection quality problem !!

 

In a self troubleshooting effort to try to obtain better connectivity / more wiggle room, check to see if there are there any excess/unneeded coax cable splitters in the line leading to the modem that can be eliminated/re-configured. Any splitters that remain should be high quality and cable rated for 5-1002 MHz, bi-directional, and no gold colored garbage types like GE, RadioShack, RCA, Philips, Leviton, Magnavox, and Rocketfish from big box stores like Home Depot, Lowes, Target, Wal-Mart etc. Splitters should be swapped with known to be good / new ones to test

If there aren't any unneeded splitters that can be eliminated and if your coax wiring setup can't be reconfigured so that there is a single two way splitter connected directly off of the drop from the street/pole with one port feeding the modem and the other port feeding the rest of the house/equipment with additional splits as needed, and you've checked all the wiring and fittings for integrity and tightness and refresh them by taking them apart then check for and clean off any corrosion / oxidation on the center wire and put them back together again, then perhaps it's best to book a tech visit to investigate and correct.



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