What Conditions Might Cause Fingbox to Continually Ask about Trusted Gateway?

RWildRWild Member Posts: 44
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I am having trouble with an older model Fingbox on my Spectrum cable 400/20 connection.  It has just started posting notices asking for confirmation of Trusted Network.  Initially there was a queue of eight devices with one of two MAC addresses.  As I work the list down confirming that each instance is trusted, when I get the list down to three entries, the list refreshes so that their are five devices in the list.  Up to three MAC addresses may be shown.  These addresses all appear to be associated with the router provided by Spectrum - for some reason i can't find the model number, it's there, I just don't seem to be able to find it.  There should be at least three MAC addresses, one for each radio, one for the ethernet.  What could cause the continual discovery of "new" gateways?

I am also having trouble with a Linksys LGS318 smartswitch  connected to this router.  I am not yet sure about the frequency but the switch losses its IP address periodically and then cannot renew.  Sometimes the reset button works, sometime I have to power cycle.

I realize that none of these problems may be due to the Fingbox - I am curious what may cause it to behave this way.
TIA
Ralph

Answers

  • rootedrooted Gulf Coast, USModerator Posts: 739
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    Likely it's a Hotspot created by the gateway, much the same way it is for Cox and Xfinity.

  • RWildRWild Member Posts: 44
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    Thanks for the reply.  I am just about positive that I cannot set up a “hot spot” with the router in question.  Are you saying that my ISP (Spectrum) has somehow set up my wireless access points (2.4 and 5 GHz radios) as public access points?
  • rootedrooted Gulf Coast, USModerator Posts: 739
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    That's what Cox and Xfinity does when you use their hardware, Spectrum also has Hotspots so that's my guess.

    It would be on a segregated network and device detection shouldn't happen but I've read people detecting devices connected to Xfinity Hotspots being broadcasted from their gateway.

  • RWildRWild Member Posts: 44
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    edited December 2019
    If these connections are on a segregated network how then how are people discovering this?  I have Wireshark installed on a couple of machines but am not skilled in its use.

    Spectrum periodically makes available some kind of “profile” that seems to be a list of public connections.  I forget exactly what it’s called, where it is stored on my iDevices, and how I receive it but at least some of the locations appear to be private residences.  This sounds like what you are talking about.

    Assuming Spectrum has made my connection a hot spot, how would this cause what is marketed as a “business” managed switch to lose its IP address?

    I appreciate your input.

    Edited:  That profile thing is in General iOS settings.  General > Profile > Spectrum WiFi > Configuration Profile
  • rootedrooted Gulf Coast, USModerator Posts: 739
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    I'm not sure what would cause your switch to fall off the network other than it potential having a hardware fault without knowing more.

    Is the switch on a VLAN or just being used for additional wired connections? Could you describe your network topology?

    Robin
  • RobinRobin Administrator Posts: 2,386
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    Robin (Admin at Fing)
    Getting Started? Please refer to Community guidelines & Community User Guides("Helping Hand"). HAPPY POSTING!!!
  • RWildRWild Member Posts: 44
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    rooted said:

    . . . Is the switch on a VLAN or just being used for additional wired connections? Could you describe your network topology?

    No VLANs - ISP does support and so not sure of the worth of trying to use under that circumstance.

    My topology is a bit of a mess.  In brief, I have two separate LANs, each with its own ISP (neither supports VLAN).  The majority of devices on each LAN are multi-homed with none of the NICs bridged.  Each LAN is a combination of managed and unmanaged switches, and bridged routers than serve as access points and host USB hard drives.  Closest to each functional router is a LGS318 managed switch (one of which loses its IP address).  Each of these LGS318s uplinks to my NAS and to the functioning routers.  One computer and one Fingbox is also connected with these routers.  Hopefully this makes sense without a diagram.


  • rootedrooted Gulf Coast, USModerator Posts: 739
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    It makes sense in that your network is complex with many possible places to cause such an issue to arise, thanks. Could you try switching the LGS318 to a different location and see if it still loses the IP or if the LGS318 you move to this location begins losing the IP? It will help rule out a hardware fault.

  • RWildRWild Member Posts: 44
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    As it happens, I just received a new LGS318 a few days ago to use at a location where I ran out of ports on the switch there.  I was planning to try what you suggest but time is tight right now.  Still need to buy, address, and mail some Christmas cards and do a few more related things but promised a client a much-anticipated report (that will be a big letdown for some of their staff).  Will post if and when I get the chance to swap it out.
    Thanks.

    BTW, I'm pretty sure that switch's DHCP lease has expired, and apparently been renewed, as it is chugging along.
    rooted
  • RWildRWild Member Posts: 44
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    Robin said:
    Thanks, interesting information although I don’t understand the circumstances where a home/home office LAN would have multiple gateways, unless a dual WAN router shows up that way.  Used to have one but either didn’t have fingbox(es) or just don’t remember.  I have had problem before with interactions between this ISP and Fingbox but that was when they were TWC, not yet Spectrum.  I suppose their router could, for some reason, start throwing up each of its LAN IPs as a gateway.  It wasn’t dropped again but I don’t think the current DHCP lease is up yet.
  • rootedrooted Gulf Coast, USModerator Posts: 739
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    @Ciaran This thread could use a little cleaning 😊, looks like there was an issue causing duplicate posts.

    Ciaran
  • CiaranCiaran Administrator Posts: 855
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    @rooted Yep. Thanks again. I ahve just cleaned that up now and aslo moved to the Fingbox category. 
    Ciaran (Admin at Fing)
    Getting Started? Please refer to Community guidelines & Community User Guides("Helping Hand"). HAPPY POSTING!!!
    rooted
  • RWildRWild Member Posts: 44
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    Ciaran said:
    @rooted Yep. Thanks again. I ahve just cleaned that up now and aslo moved to the Fingbox category. 
    Thanks for me as well.  I suspect that I caused the problem.  Everything I come back here, I see my last message in this space - the space at the bottom of the screen where you type a message - I so I hit “Post Comment” on more than one occasion.  My apologies if I caused the problem.  Am I doing something wrong? 
  • rootedrooted Gulf Coast, USModerator Posts: 739
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    edited December 2019

    I've ran into this before, my messages become drafts for some reason. I'm not yet sure why.

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