Forum Discussion

Sleepygaz84's avatar
Sleepygaz84
Joining in
2 months ago

Hub 5x DHCP woes

Hello, 

I have a Hub 5x and I run a fair size network with 5 of my own access points running on static IP's (outside the DHCP range) farming out DHCP from the hub 5x router. 

I've had nothing but trouble with DHCP on the hub 5x. It seems buggy and unreliable to say the least.

There's also a terrible bug in the UI that causes the entire DHCP table to get trashed when you delete a reserved IP, which manifests in the router no longer loading the "connected devices" page or the DHCP page, so I then can't manage anything without doing a full reset on the router and starting from scratch. 

I've also had it randomly not assign reserved IP's and just farm out a random one. I've also had it randomly not assign IP's at all (DHCP server crash) and I have to reboot the router. 

I've done some extensive research which leads me to believe these are not unknown problems with the 5x and it leaves me wondering why Virgin are still giving the device to its customers. Surely it's causing a support headache? 

Anyway, I've had enough of the thing and I want to replace it, but I understand you can't, so my only option would be to run by own edge router dealing with DHCP etc.

The problem with that is the 5x doesn't have a "modem mode" and my only solution seems to be just disabling DHCP on the router. However after doing that I've seen double NAT problems where it's still trying to serve IP's despite the DHCP server being disabled (confirmed with packet captures). 

Is there a way that I could obtain a different hub from Virgin that isn't plagued with DHCP issues? or one that at least properly supports a "modem mode"? 

TIA

6 Replies

Replies have been turned off for this discussion
  • Sleepygaz84's avatar
    Sleepygaz84
    Joining in
    2 months ago

    Just to add; The access points are POE hardwired over Cat6e through a POE switch which then goes into the 10GB port on the Hub 5x

  • legacy1's avatar
    legacy1
    Alessandro Volta
    2 months ago

    Clearly VM don't know what they are doing and will of course blame you only the hub 5x has no real get out of jail modem mode to fall back on.

    VM could do X-ONU-SFPP which if you search for may be a option

    Or just double NAT with a router using one sorry a$$ LAN IP and not your real one WAN IP and everything to your router.

  • Tudor's avatar
    Tudor
    Very Insightful Person
    2 months ago

    “running on static‎ IP’s" Do you mean real static IPs, defined in the device or do you mean reserved IPs in the hub. The latter are not static, but are often referred incorrectly as static by many people. Have you tried giving ALL devices a static IP, I know this will not get rid of all the DHCP traffic, but might help.

  • jpeg1's avatar
    jpeg1
    Alessandro Volta
    2 months ago

    The 5x is a cheap device that works perfectly well for the mass of customers who want to watch TV, play games and WFH. 

    The small proportion of customers who want to do something different are just a nuisance to VM. It would cost money to meet all their special needs and they are best ignored. 

  • Client62's avatar
    Client62
    Alessandro Volta
    2 months ago

    With the Hub 5x DHCP server disabled, the alternative DHCP server needs to just serve IPs in the 192.168.0.xxx range and to do no more.

    Seeing a Double NAT suggests the alternative DHCP server is also a Router performing NAT and delivering IPs outside of the 192.168.0.xxx range.