You can either call 1-800-391-3000, select technical support, and ask them to turn it off for you, OR you can IM one of the mods on this forum (Comcast_Jon, Comcast_Jacob, or others) and they can do it for you.

Hello b862 and welcome,

If you have a Comcast DPC3939B Gateway CDG) , you can shut down your public wifi as follows: 

1. connect a computer using an Enet cable to one of the Lanport 1-4 ports on the back, bring up a browser and go to 10.1.10.1

2. username=cusadmin, password=highspeed

3. click on connections, then wifi, then click on the public 2.4 and 5 edit button, then disable the ssid and broadcasting.

4. click save settings, reboot the CDG and you should not see anymore xfinitywifi network connection.

If you have any single dedicated public wifi devices, simply unplug them from the AC and this will shut them completely down.

Hope this helps you out.  

@VBSSP-RICH, I don't think there is an option for "public 2.4GHz" or 5GHz in the DPC (at least, i'm not seeing one on my unit). Only private is accessible. See the attatched picture.

Hi b862.  Currently access to the Xfinity Public WiFi interface is limited to Comcast Technicians. 

Reference the post below by Established Member train_wreck.  Please include the WAN MAC Address of the device in the private message.

train_wreck

Established Member

Posts: 159

 

Re: Turn off Xfinity Wifi Hotspot

Options

 

‎11-01-2014 01:18 PM

You can either call 1-800-391-3000, select technical support, and ask them to turn it off for you, OR you can IM one of the mods on this forum (Comcast_Jon, Comcast_Jacob, or others) and they can do it for you.

@Comcast_John

Thank you for confirming that. 

I used to have outages everyday when XFINITY WIFI was enabled. It has now been 10 days since disabling XFINITY WIFI. Not one outage over the last 10 days. 

Comcast Reps doubted it would make any difference by disabling XFINITY WIFI, but the facts are here. 

How do we get Comcast to address this issue? I am assuming I am not the only one affected by this. 

I am also surprised that not one of the  Comcast techs and supervisors (4 total that have visited my business location in the last 3 months) suggested that I try disabling the XFINITY WIFI.  I kind of stumbled upon it by accident, having eliminated every other factor. 

I hope this will get someone to re-analyze the impact of XFINITY WIFI. 

What is the model number of your modem?  I believe that if shutting of the public wifi fixed problems you were having, then that should be considered a defect in the device.   The wifi should not cause this kind of problems - if it does, then the device's CPU is probably being overrun because the CPU is not powerful enough for what the device is designed to do.

As for the moral implications, if you look at it, they are a zero sum.  Yes, the owner is unwittingly giving out service to freeloaders.  Howerver, the owner can also go to a restaurant or hotel or bar or whatever and obtain free service from someone else's wifi signal, and many do.

As to why Comcast is even doing this at all, it's very likely some secret deal between them and the FCC.  The FCC is hell-bent on getting every American online.  They are in particular focused on the poor Americans who claim to not be able to afford monthly Internet service, and have kicked off various initatives to give "free" Internet access to "the poor" including arm-twisting the large ISPs to do so.

I feel pretty confident in saying that Comcast has not, in the past, revealed the real reason they did this, and I am also pretty confident they will not reveal the real reason they are doing this in the future because the FCC won't let them.  The reasons they have stated for doing it are nonsensical and fall apart on technical grounds once you start picking at them.

I would suggest directing your complaints to the FCC, not Comcast.

Good morning, I already turned off private wifi in my cisco DPC3939B gateway, and to confirm to other readers: no there is no way for paying customers to disable the public hotspot.

I found no way of manually assigning a different DNS server with DHCP off, and also found it imposible to set up a static route if the LAN address is changed from the default block.

I need a moderator to turn off Xfinity Wifi Public Hotspot for me, but do not know who is available to message my acct# and request.

thank you very much and have a great day everyone.

I second train_wreck.

"I am requesting a firmware modification to include local setting to enable/disable PUBLIC WIFI access (xfinitywifi)."

best regards

note: @support: please turn off again, thanks

Hello aic,

Sorry for the late reply to your request.

All public Wi-Fi function has been disabled.

We apologize for this inconvenience this has cause.

Thank you