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?

There are times when I think "thankfully I have my own networking kit" I really don't think I could cope with the stress otherwise ......... ;-)

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?

Trouble is the tech support people know very little because your question is not in their script/playbook and they are not technically trained. It would be VM’s fault if the Hub 5 DHCP was not releasing IP addresses, but to confirm that, someone would need to go into the Hub’s GUI and check the allocated IP addresses against the devices known to be attached. However, there are enough IP addresses in the range for this not to occur unless every address has been used and not released. So, people suffering this phenomenon, need to get someone into the home who understands network basics to check all this out.

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 )

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

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

28 Replies

Client62
Alessandro Volta
5 months ago
Both of the sets of IP look fine.

Could there be a Wi-Fi issue ?

Is the PC connecting to the MAIN SUBNET via 5 GHz Wi-Fi and struggling to hold onto the connection.

But connecting to the GUEST SUBNET via the 2.4GHz which works over a longer range and can be quite stable in situations where 5GHz is possible but not reliable.
legacy1
Alessandro Volta
5 months ago
Look to get your own wifi router with 1Gb ports and put hub in modem mode
- big_ian
  Joining in
  5 months ago
  I think you may be on to something here as this could explain why I can connect reliably via the lan extender (albeit much slower) in my garage, which is on the MAIN SUBNET but running at 2.4GHz.
  Is it worth temporarily disabling 5GHz in the router to see what happens?
  - Client62
    Alessandro Volta
    5 months ago
    What will happen is the PC uses the 2.4GHz signal.
    
    What may also happen after a period of hours to days
    is the VM Hub will re-enable the 5GHz band.
    
    Perhaps you need another Wi-Fi Access Point that is closer to the PC.
big_ian
Joining in
5 months ago
Thank you for your response and suggestions - I will investigate further.
- Gareth_L
  Forum Team
  5 months ago
  Hello big_ian.
  
  Thanks for your post.
  
  We're just wondering if you've managed to sort the connection issue out yet.
  
  From reading this post it did mention setting up a guest WIFI and using that for the devices that need connecting. If you need help doing this have a look here
  
  Gareth_L
Angie12341
Just joined
4 months ago
Hello! First time here. I was wondering if you ever managed to find a solution to this. I have one laptop and Alexa that don’t connect to internet. Called them, on the phone 2.5 hours and then they wanted me to pay to continue helping me. I am furious…
- Sephiroth
  Alessandro Volta
  4 months ago
  Trouble is the tech support people know very little because your question is not in their script/playbook and they are not technically trained. It would be VM’s fault if the Hub 5 DHCP was not releasing IP addresses, but to confirm that, someone would need to go into the Hub’s GUI and check the allocated IP addresses against the devices known to be attached. However, there are enough IP addresses in the range for this not to occur unless every address has been used and not released. So, people suffering this phenomenon, need to get someone into the home who understands network basics to check all this out.
  - Adduxi
    Very Insightful Person
    4 months ago
    There are times when I think "thankfully I have my own networking kit" I really don't think I could cope with the stress otherwise ......... ;-)
Client62
Alessandro Volta
4 months ago
Be very careful not to assume the two distinct issues encountered
in this thread are the same as your own situation.

[ Just ] one laptop and Alexa that don’t connect to internet

This could be the long standing issue of older Wi-Fi 4 devices being totally inoperable
with the 2.4GHz Wi-Fi 6 signal from a Hub 5 ?

The symptoms of this are usually failing to detect the Hub 5's Wi-Fi signal,
but may also present as attempting to connect then failing to authenticate with the Hub 5.

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

28 Replies

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