Forum Discussion

mezzaninedoor's avatar
mezzaninedoor
On our wavelength
7 months ago

DHCP issues with new Hub5. Wi-Fi but no Internet on some devices

I got a new Hub5 about 8-10 weeks ago.   In the last couple of weeks some devices can connect to the WI-FI but they don’t have Internet so pretty useless.

This is only on some devices and mainly seems to be laptops.

However these devices appear to be able to get internet on the Guest network?

I’ve been reading around this and it seems you can only have 255 DHCP connections and Hub5 doesnt seem to be recycling IP addresses on the DHCP server.

is there anything I can do to fix this please? 

  • Client62's avatar
    Client62
    Alessandro Volta
    7 months ago

    DHCP server issues were quite common in the early versions of the Hub 5 Software.

    Which version of Software is on your Hub 5 ?   (with our Hub's menu this is seen from Admin >> Info )

  • legacy1's avatar
    legacy1
    Alessandro Volta
    7 months ago

    Hubs not that well tested and when we have a issue VM think we are the problem so use hub in modem mode that been tested to work with people who just want the internet we pay for with are own router with 1Gb ports or better

  • TedsMob2014's avatar
    TedsMob2014
    Joining in
    7 months ago

    Same issues here now on my 2nd Hub 5 - replied to a similar thread a few days ago and again today. https://community.virginmedia.com/t5/Networking-and-WiFi/WIfi-has-no-valid-IP-configuration/td-p/5509439/page/6

    Issue is 100% Dhcp related and soon as that lease time is up it has issues, default lease is 1 day I've increased mine to 7 days, but hoping to go modem mode and hook my own Asus Mesh back up. However this doesn't resolve the problem.

    VM this needs fixing.

    My current hub software is 

    Software version
    LG-RDK_7.6.20-2306.5? not sure if this is only or new
  • TedsMob2014's avatar
    TedsMob2014
    Joining in
    7 months ago

    So I wake up and again several devices no longer have an IP and show Unidentified network, this is really doing my head in now I Work From Home and this is a great struggle.

    @VirginMedia.. what is going on with this IP/DHCP issue?

  • Client62's avatar
    Client62
    Alessandro Volta
    7 months ago

    LG-RDK_7.6.15-2306.5  was first reported from around 08/02/2024  this is not an early version.

  • Sephiroth's avatar
    Sephiroth
    Alessandro Volta
    7 months ago

    Are you willing to set static IP addresses for your regular devices?  Assuming the facility exists in the Hub 5, you would associate a device MAC address with a chosen IP address in the DHP range.  Any lease time you set (and there needs to be one for rules reasons) is irrelevant.

    Let us know, please.

  • Client62's avatar
    Client62
    Alessandro Volta
    7 months ago

    Devices connecting and then not working always hints at Wi-Fi Pausing / MAC Filtering,
    or the presence of a 2nd DHCP server giving out IPs that don't route to the internet.

    Sadly when there is an alleged DHCP problem the OP does not post the full IP details of the devices that are not working to show what has happened.

    • Roger_Gooner's avatar
      Roger_Gooner
      Alessandro Volta
      7 months ago
      Client62 wrote:

      Devices connecting and then not working always hints at Wi-Fi Pausing / MAC Filtering,
      or the presence of a 2nd DHCP server giving out IPs that don't route to the internet.

      Sadly when there is an alleged DHCP problem the OP does not post the full IP details of the devices that are not working to show what has happened.

      Exactly. In this case the OP has posted elsewhere that he has an Orbi RBR20, so who knows how the hub 5 and Orbi are connected and how the Orbi is configured.

      BTW, the hub 5 may not be as terrible as some people say it is as mine works perfectly well with all devices getting their IP addresses dynamically allocated.

  • Sephiroth's avatar
    Sephiroth
    Alessandro Volta
    7 months ago

    As I said, try the static IP method.  Hoping for a solution from VM in short order is an illusion.

  • ruairi_o's avatar
    ruairi_o
    Tuning in
    14 days ago

    I’m having the very same problem for the second time after having my Hub 5 replaced just 4 months ago after months of not being listened to by Virgin. 

    My home security and heating devices still function fine on the main WiFi network, but a variety of Windows, Android and Apple devices do not - they connect but have no internet and generate “no valid ip configuration’ errors. The same thing happens with both WiFi and Ethernet connections, but the same devices work fine on the guest network. 

    @VirginMedia why have you still not fixed this issue with your Hub?

    • mezzaninedoor's avatar
      mezzaninedoor
      On our wavelength
      13 days ago

      Software version LG-RDK_7.6.20-2306.5

      Have an RBR20 plugged into the Hub 5 but that’s not serving addresses.

      I’m still getting problems on some laptops that can only connect using the guest network

      ive split my 2.4 & 5ghz ids 

      id sort of given up on this as Virgin have been no help

      • Client62's avatar
        Client62
        Alessandro Volta
        13 days ago

        Normally the VM Hub 5 would be in Modem mode and the RBR20 to be in Router mode.

        Please confirm the configuration if that is not the case.

        What is hosting the Guest Wi-Fi network ( the VM Hub or the RBR20 ) ?