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  1.    21 Apr 2016 #1
    Join Date : Apr 2016
    Posts : 5
    Windows 10

    Keeps connecting to an open WiFi that's not on the "known" list


    I've got a weird problem I can't figure out:

    New Surface Book running Windows 10. Every time it boots, it connects to "xfinitywifi" (an open WiFi access point apparently belonging to a neighbor). This AP has "limited connectivity", though, so no internet access (and I don't want to be connected to it, anyways!).

    I've previously connected to my home WiFi, and this is the only network listed in my "Manage known networks" list. When I manually "disconnect" from xfinitywifi, Windows automatically connects to my home WiFi. For some reason, though, on boot up, it automatically connects to this open network (despite being set to NOT connect to open networks), and it prefers this open network over my (secured) known network.

    I have disabled the "Wi-Fi Sense" "feature".

    Any ideas?
      My ComputerSystem Spec
  2.    21 Apr 2016 #2
    Join Date : May 2015
    Central IL
    Posts : 4,332
    Mac OS Sierra

    XfinityWifi does not belong to anyone but Comcast. If you look up at the wire runs for Comcast, you will see a rectangular gray box. That is a Access Point that Comcast is using to allow their footprint to be expanded. On their leased equipment, they use two VLAN's for Guest access with a username and password with the providers that are allowed to use that connection. One is Xfinitywifi, the other is CableWifi.

    There really is no such thing as a Known list. Windows 10 will only list those Access Points that it sees within the range of the device. If you are not connecting to your Gateway, then either you have poor signal, or somehow the wifi got turned off.

    Can you connect to it with Ethernet and check to see if WiFi is turned on? If this is equipment that you are leasing from Comcast, I would take it in and get it swapped out. Or even better, just purchase your own equipment and save yourself some money in the long term.

    This explains the alliance that is working together to allow users leased equipment to be used for public hotspots, and also the Gray Access Points up on poles are public Hotspots. Cable WiFi | Internet access brought to consumers through a collaboration among U.S. Internet service providers

    Access the Internet Using XFINITY WiFi Hotspots
      My ComputerSystem Spec
  3.    21 Apr 2016 #3
    Join Date : Apr 2016
    Posts : 5
    Windows 10
    Thread Starter

    Sorry, I might not have been clear:

    -I do not have Comcast. I own my own WiFi access point. WiFi is on and working. No problems.

    -When I boot up, Windows automatically connects to "xfinitywifi". When I manually disconnect from xfinitywifi, Windows automatically connects to my home WiFi network (let's call it "home-wifi"). I don't even have to click on "home-wifi" and press connect - Windows remembers that I've previously connected to "home-wifi" and just automatically connects to it as soon as I disconnect from "xfinitywifi"

    -I do not ever want to connect to "xfinitywifi". I want to always connect to "home-wifi".

    -There is a "Manage Known Networks" option in "Network and Internet" \ "WiFi" \ "Manage WiFi Settings". Only "home-wifi" is listed here.


    Somehow, despite me NEVER having chosen to connect to "xfinitywifi", Windows connects to it every time I boot.
      My ComputerSystem Spec
  4.    21 Apr 2016 #4
    Join Date : Jun 2014
    Posts : 554
    Microsoft Windows 10 Pro 64-bit

    There is a way to blacklist SSID's

    Open an elevated PowerShell and paste this code into it

    Code:
    netsh wlan add filter permission=block ssid="SSID-of-Black-listed-Network" networktype=infrastructure
    Edit:
    I just noticed Brink made a Tutorial about this
    https://www.tenforums.com/tutorials/3...dows-10-a.html
    Last edited by sml156; 22 Apr 2016 at 03:21. Reason: Beacuse I can
      My ComputerSystem Spec
  5.    21 Apr 2016 #5
    Join Date : May 2015
    Central IL
    Posts : 4,332
    Mac OS Sierra

    Clear about what. You were clear enough that you have a problem and that you are connecting to Comcast's hotspot. If you do not own the equipment and cannot go in to turn on Wifi, take the leased equipment back into the Comcast Walk-in Center and walk out with a new eMTA.

    There is also no such thing as Known Networks. All that Wifi will list, is available hotspots that the radio in the wifi card can pick up.
      My ComputerSystem Spec
  6.    21 Apr 2016 #6
    Join Date : May 2015
    Central IL
    Posts : 4,332
    Mac OS Sierra

    Quote Originally Posted by sml156 View Post
    Not sure if this will work, But there is a way to blacklist SSID's

    Open an elevated PowerShell and paste this code into it

    Code:
    netsh wlan add filter permission=block ssid="SSID-of-Black-listed-Network" networktype=infrastructure
    They do not want to black list anything, because that is not the issue. The XfinityWifi and CableWifi are public hotspots for customers with Comcast and other affiliates that can use those hotspots in areas that are served. Black listing the Xfinitywifi & CableWifi hotspots will actually break their wifi, not fix it.

    If Wifi is active on the eMTA, but not being picked up, others can be seen by the radio in the wifi, the problem is with the OP equipment. If leased, they need to take it back to Comcast and pick up a new one to replace the old one.
      My ComputerSystem Spec
  7.    21 Apr 2016 #7
    Join Date : Apr 2016
    Posts : 5
    Windows 10
    Thread Starter

    Quote Originally Posted by bro67 View Post
    Clear about what. You were clear enough that you have a problem and that you are connecting to Comcast's hotspot. If you do not own the equipment and cannot go in to turn on Wifi, take the leased equipment back into the Comcast Walk-in Center and walk out with a new eMTA.
    I feel like you're not reading what I wrote. I do not have Comcast. No service from them AT ALL. No cable. No xfinity. No box. No grey box on my house. Nothing. I have a DSL line from a local ISP that plugs into my personal access point.
      My ComputerSystem Spec
  8.    21 Apr 2016 #8
    Join Date : Jun 2014
    Posts : 554
    Microsoft Windows 10 Pro 64-bit

    Quote Originally Posted by awesomesauce View Post
    I feel like you're not reading what I wrote. I do not have Comcast. No service from them AT ALL. No cable. No xfinity. No box. No grey box on my house. Nothing. I have a DSL line from a local ISP that plugs into my personal access point.
    Thank you You beat me to it.

    Did you try my command
      My ComputerSystem Spec
  9.    21 Apr 2016 #9
    Join Date : Apr 2016
    Posts : 5
    Windows 10
    Thread Starter

    Quote Originally Posted by sml156 View Post
    Thank you You beat me to it

    Did you try my command
    No, not yet. I appreciate the reply and will try it if no one has any other solutions.

    I just don't get why this is happening, though. Why would Windows decide it's OK to connect to this? Perhaps trying to understand Windows is a fool's errand...
      My ComputerSystem Spec
  10.    21 Apr 2016 #10
    Join Date : May 2015
    Central IL
    Posts : 4,332
    Mac OS Sierra

    Quote Originally Posted by awesomesauce View Post
    I feel like you're not reading what I wrote. I do not have Comcast. No service from them AT ALL. No cable. No xfinity. No box. No grey box on my house. Nothing. I have a DSL line from a local ISP that plugs into my personal access point.
    I am not going to sit here and go back and forth with you. Again if your equipment is not working and you are picking up the Comcast Public Hotspots, you have equipment problems.

    Stop thinking that I did not read what you posted. The point is that you are ignoring what I posted and I am done explaining over and over that the problem is with your Gateway. There is most likely nothing wrong with Windows 10 or the Wifi radio, since it is picking up all available Hotspots that it can see.

    Wifi works like your FM radio when you tune into a station. If you can pick up a station and hear it, that means that it is within enough range that you are able to hear it. If you get static or nothing, that means that either the signal is down or that you are too far out of range.

    There is also no such thing as Known networks as I have stated already two times. You get a list of available Wifi networks and that is all that shows up in that list.
      My ComputerSystem Spec

 
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