Contributor
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99 Messages
XB7 - can't set Wifi 160 MHz option. S22 Ultra supports this. Please fix it !
I recently upgraded to the XB7 . I have the xFi unlimited package.
On the wired side, all is good I get about 1400 Mbps down, as I'm using N-base T equipment (10 Gbps LAN) and the XB7 has a 2.5 Gbps LAN port.
Well, the upload is still capped at a ridiculous 40 Mbps, so all this is not good there still ...
On the Wifi side, sadly, things are not so rosy. When I configure the Wifi 5 GHz connection, I see :
Wi-Fi Mode, Security Mode, Channel Selection, Channel Mode, and Channel Bandwidth are being managed automatically to help optimize your home Wi-Fi network and improve Wi-Fi coverage. To edit your Wi-Fi Network Name & Network password, please download the Xfinity xFi app or visit xfinity.com/myxfi.
The Channel bandwidth is set to 20/40/80 . There is a 20/40/80/160 option, but it is not possible to manually select it !
The Xfi web site does not have this option available either. I followed the instructions at https://www.xfinity.com/support/articles/change-wifi-mode-admin-tool-xfinity-xfi , but unfortunately, these instructions are wrong. I can't select the band or Wifi mode.
I live on a hill with neighbors far apart, so I should be able to use 160 with no problem. In fact, I already have 4 Unifi Wifi 5 APs all setup at 160 that work perfectly fine. But they are Wifi 5, so they cap at slightly lower speeds. They also have only 1 Gbps ethernet ports rather than 2.5 Gbps, so they can't go any faster than gigabit. The actual speed I get from them from my Note 20 Ultra is about 500 - 600 Mbps.
When connecting with my Note 20 Ultra to the XB7 Wifi 6 at 80 Mhz, I get about 800 Mbps. This is better, but still not what it would be at 160 MHz.
How can I force the XB7 to use 160 MHz on the 5 GHz band ?
Same question about forcing 20/40 MHz on the 2.4 GHz band.
madbrain76
Contributor
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99 Messages
4 years ago
So, no one, really ? It's ridiculous not to be able to set the Wifi router settings.
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Jlavaseur
Problem Solver
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948 Messages
4 years ago
So your post sparked my interest, i have the luxury of being able to change the band width on my Xb7, so i did a few tests, of course not scientific, so some very interesting results came to my immediate attention, so my phone on the 20/40/80/160 Mhz selection 4 feet from the gateway, the speed was roughly 800 Mbps, 10 feet away it dropped to roughly 600 Mbps, 20 feet away it was roughly 500 Mbps, so then i set it to 20/40/80 Mhz selection, 4 feet from the gateway it jumped to roughly 900 Mbps! so the speed increase across the distances were similar, so thanks to your post i now enjoy higher speeds by just altering the one setting, i also tried the 20/40 selection, while slower, not as much as you would imagine
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Jlavaseur
Problem Solver
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948 Messages
4 years ago
@madbrain76 I sent you a private message
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user_3e0a49
Visitor
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13 Messages
4 years ago
Its STILL an issue. I went with the XB7 precisely for the advertised full wifi6 certification. Disabling 160mhz is NOT fully wifi6 certified.
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Jlavaseur
Problem Solver
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948 Messages
4 years ago
So from what I understand, the settings in the grayed out admin panel, could or could not be the actual settings be used as its changing to give the best performance, so how do you really know it’s not using 160 MHz if it sees appropriate, I can change my settings, when I change from 80 MHz to 160 MHz I lose 100 Mbps, I know not being able to change is not ideal, I have had two xb7s, one managed one not, actually the unmanaged one was slower in some instances because of the choices of settings I chose to use….
(edited)
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Comrad_Durandal
Visitor
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6 Messages
4 years ago
Channel bandwidth isn't as useful of an option as many believe. In fact, its likely that these options are disabled in areas with dense population due to folks maxing the setting out and the area becoming a warzone of transmitters all using their maximum channel bandwidth, preventing any interference avoidance and basically drowning out any other devices using the band (cell phones, cordless phones, baby monitors, garage door openers, FRS radios, etc.). In really rural areas, it doesn't harm anyone to play with the settings to see what delivers the best performance for your use case. In large urban centers, it quickly becomes who has the highest vantage point with the hottest transmitter - everyone else be dipped. Where I live, there is a few people using 80 MHz / 160 MHz radio modes - there is a deadman's land around their wireless networks where nothing wireless works - not even FM radio (that takes -talent- to do...).
I would not be surprised if XFinity has the feature locked to adjustment at all, or set so they are the only people who can set them on their own end. I've heard that they are working on making newer WiFi standards more resilient to issues caused by misconfiguration, but for now - all it takes is a few people misusing things for it to really hose things for everyone. :P
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Eatman3
New Poster
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2 Messages
3 years ago
i had the XB6 with all settings grayed out and it was a mess. i read a lot of these forums before going to my local xfinity store to get the XB7. The trick is to tell them or make them activate it at the store. DO NOT HAVE ANY app made by xfinity on your cell phone/ipad/etc. when you you get home, plug it in and log into it with the default info on the bottom sticker. then open a tab and go to 10.0.0.1 and log into your gateway. ALL OPTIONS WILL BE AVAILABLE. do not ever use any app made by xfinity, thats when they lock your gateway down.
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meatly1108
Visitor
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1 Message
3 years ago
I don't get why comcast Says they're providing 1.2 GBPS download speeds, it is physically impossible to push any more then 1000 MBPS through coax cable. They're flat out lying to you if they tell you that you are getting any more then 1GBPS download speed, you would need fiber optic in that case.
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madbrain76
Contributor
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99 Messages
3 years ago
This is a followup to https://forums.xfinity.com/conversations/your-home-network/xb7-no-wifi-160-mhz-option-please-fix-this/60f0de9bf692cf395dfa8446 .
The thread was incorrectly closed without any solution. To recap :
I upgraded to the XB7 . I have the xFi unlimited package.
On the wired side, all is good I get about 1400 Mbps down, as I'm using N-base T equipment (10 Gbps LAN) and the XB7 has a 2.5 Gbps LAN port.
Well, the upload is still capped at a ridiculous 40 Mbps, so all this is not good there still ...
On the Wifi side, sadly, things are not so rosy. When I configure the Wifi 5 GHz connection, I see :
Wi-Fi Mode, Security Mode, Channel Selection, Channel Mode, and Channel Bandwidth are being managed automatically to help optimize your home Wi-Fi network and improve Wi-Fi coverage. To edit your Wi-Fi Network Name & Network password, please download the Xfinity xFi app or visit xfinity.com/myxfi.
The Channel bandwidth is set to 20/40/80 . There is a 20/40/80/160 option, but it is not possible to manually select it in the admin UI !
The Xfi web site does not have this option available either.
I live on a hill with neighbors far apart, so I should be able to use 160 with no problem. In fact, I already have 5 Unifi Wifi 5 APs all setup at 160 that work. Channel scans show no interference. But they are Wifi 5, so they cap at slightly lower speeds. They also have only 1 Gbps ethernet ports rather than 2.5 Gbps, so they can't go any faster than gigabit.
When connecting with my S22 Ultra to the XB7 Wifi 6 at 80 Mhz, I get about 800 Mbps. This is not bad, but still not as good as it should be at 160 MHz. The S22 Ultra specifically supports HE160 mode, per its specs at https://www.samsung.com/global/galaxy/galaxy-s22/specs/ .
How can I force the XB7 to use 160 MHz on the 5 GHz band ?
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n0s4atu
Contributor
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23 Messages
3 years ago
So, funny story, I upgraded to the XB7 to fully take advantage of my newer computer's Intel® Wi-Fi 6 (2x2) Gig+ and Bluetooth® 5.1 wireless capabilities. I was getting less than 600mbps over wireless. Strangely my phone (couple year old Note 10+) was getting slightly faster which seemed odd.
Long story short I made Costco take back an almost 1 year old PC after spending 2 days on customer support with Dell and Microsoft without any resolution to the problem, having my computer wiped, losing data.
Hilarious to then come in here and see this thread and realize that the 160MHz isn't available and I wasted time and money upgrading. Sure glad I'm paying almost $400 a month to Xfinity for such fun times.
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