C7100v router on Xfinity 150Mb - wireless speed much faster than wired

[trs65]

I have a C7100v for my Xfinity 150Mb service.  Since installation, all computers connected to my network by ethernet (and no matter where in the network, including directly connected to the device) have tested at 90-95Mb/s using the Xfinity speed test (and all others).  Wireless devices, however, connect at 150+.  Comcast has come twice to test the line and it appears the line in is at full speed/strength.

I have Windows 10 as well as Mac OS computers connected, all with the same speed test results.  The firmware is v2.01.40 - which I believe is current.  There appears to be no setting for QoS (which I read could be a problem) on this router.

Any help would be very much appreciated!!  Please post if there is more infomation that could be useful in figuring this out.

[FURRYe38 · Accepted solution]

How are you speed testing? Web browser and speed test site or Ooklas speed test app installed on the PCs? 

What LAN cables are you using? CAT6 is recommended. 

IF the wifi devices are getting to spec speeds and wired isn't, possible issue with PCs and or cabling needs to be reviewed first. 

Try a factory reset on the modem and setup from scratch and test. 

[FURRYe38 · Accepted solution]

How are you speed testing? Web browser and speed test site or Ooklas speed test app installed on the PCs? 

What LAN cables are you using? CAT6 is recommended. 

IF the wifi devices are getting to spec speeds and wired isn't, possible issue with PCs and or cabling needs to be reviewed first. 

Try a factory reset on the modem and setup from scratch and test. 

[trs65]

Speed testing is using Xfinity speed test.

I did a full reset and replaced all cables (except 1 in the wall) with Cat6.

I now get:

Port	Status	TxPkts	RxPkts	Collisions	Tx B/s	Rx B/s	Up Time
WAN	Link Up	109352	913824	3	49265182	1344515805	0:14:21
LAN1	1G/Full	2096809	1652606	711	2459751862	1173719188	0:15:56
LAN2	1G/Full						0:15:56
LAN3	1G/Full						0:15:56
LAN4	100M/Full						0:15:56
WLAN	600 M	1232	4755	0	1029478	918879	0:15:56
WLAN	1300 M	0	350	0	885577	53677	0:15:56

So I have full speed (170+mbs) to all the devices plugged into the 1G/Full ports.  Before it was showing all the ports at 100M/Full.

Thanks so much for the help.  Seems I am good to go now!

[FURRYe38]

Enjoy.