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Andy_GB
Beginner
6,137 Views
Message 1 of 6

Unknown devices keep connecting

I logged into my BT Home Hub Manager last week and noticed there were some unusual devices connected via Wifi. I immediately factory reset the router, setup a new network name (albeit similar to the one I have now), made a new 32 character password (consisting of lower case, upper case, numbers, and symbols), and disabled WPS (as thats high insecure). I then started adding my devices one by one and naming them so I knew they were authorised. I would like to setup MAC address filtering but BT for some reason don't offer it !!!

 

Today I have two more "android" devices which are connected to my router which are not authorised.

 

So BT, there is vulnerability somewhere and I would like your help finding it and fixing it.

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5 REPLIES 5
gg30340
Distinguished Sage
Distinguished Sage
6,131 Views
Message 2 of 6

Re: Unknown devices keep connecting

It may well be devices that are connected to the BTWifi free hotspot that is transmitted by your Smarthub. If that is the case it is not a "vulnerabilty" but a planned free "added extra" when you become a BT customer.

 

See link about BTWifi

 

http://bt.custhelp.com/app/answers/detail/a_id/10992/~/what-is-btwifi-with-fon%3F

 

https://www.btwifi.co.uk/help/common-questions/

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Andy_GB
Beginner
6,128 Views
Message 3 of 6

Re: Unknown devices keep connecting

Are you sure this is correct because I wouldn't expect "FON" devices to be showing up on my connected devices list, and my DHCP list.

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gg30340
Distinguished Sage
Distinguished Sage
6,120 Views
Message 4 of 6

Re: Unknown devices keep connecting

Anything connected via BTWifi will have an IP address starting with 10xxxx.

 

Things to check that some people forget about are smart TVs, powerline adaptors, network switches etc.

Zombie
Expert
6,092 Views
Message 5 of 6

Re: Unknown devices keep connecting


@gg30340 wrote:

Anything connected via BTWifi will have an IP address starting with 10xxxx.

 

Things to check that some people forget about are smart TVs, powerline adaptors, network switches etc.


Agreed, I did the same thing last month wondering what that extra thing was on my listed devices,  turns out it was the nest thermostat...

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sjonez
Contributor
6,081 Views
Message 6 of 6

Re: Unknown devices keep connecting

Get the MAC address (e.g. 00:0a:95:9d:68:16) of the unknown devices from the hub and enter it into this site https://macvendors.com/

 

It *might* help you identify the device by the vendor (e.g. for my android it shows HUAWEI, which is correct as it's a Nexus). Sometimes it might just show the generic vendor of the network card (e.g. Intel or Realtek) but it might help you to identify if it's one of your devices or not.

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