User comments on ISPs
  >> BT Broadband


Register (or login) on our website and you will not see this ad.


Pages in this thread: 1 | 2 | (show all)   Print Thread
Standard User scoop
(learned) Tue 09-Oct-12 22:36:09
Print Post

Does anyone understand Homehub 2 DHCP??


[link to this post]
 
I wonder if anyone who understands DHCP on the Homehub can help with this one. I am utterly perplexed.....

Background: Homehub 2, BT Vision over Powerline on Infinity 2.

The story so far: Homehub 2 flatly refuses to offer an IP address to my Canon wireless printer with the inbuilt Hub wifi. So, connected a TP-Link wireless AP to the hub and turned off the Hub wireless. Printer now connects fine and gets an IP address from the hub. Most devices connect (Ipods, laptop, Blackberry) but son's Android 'phone again cannot get an assigned IP address from the Hub. On several occasions, however, the Hub also fails to assign IP addresses to anything connected via the WAP. This appears to be highly random and not device specific.

Tried to fix this by also enabling the DHCP server on the WAP, with a defined IP range outside that of the Hub (DHCP on the hub was re-configured to have a mutually exclusive IP address range). So, the Hub should handle the DHCP and IP addresses for wired devices, the TPLink handling wireless IP addresses. All so far so good; everything wireless connects (including printer and Android phone), wired connections all seem OK......

.....until the BT Vision box decides it cannot see the HomeHub any more. It can get an IP address (via the TP Link; the Homehub now flatly refusing to even acknowledge the Vision box exists, never mind assign an IP address) and see the internet, but will not be recognised by the HomeHub. Therefore it will not pause, rewind, record etc.

Turning off the DHCP on the TP-Link and severl re-boots of he Vision box and Hub finally re-establishes HomeHub/BT Vision connection, but then undoes the improved connectivity and IP address assignment on my wireless devices.

How on earth do I get this lot to work properly? Surely the Hub should be able to handle both wired and wireless DHCP provision and connect all my wired and wireless devices, and allow me to connect to my wireless printer over wifi???

Anyone got any idea on this?? It seems rather ridiculous that I need such a contrived setup for a fairly simple home network.......
Standard User ukhardy07
(experienced) Tue 09-Oct-12 22:42:32
Print Post

Re: Does anyone understand Homehub 2 DHCP??


[re: scoop] [link to this post]
 
Solution: ring up BT and get a new homehub sent out

The DHCP will still be handled by the HH with the AP probably hence same issues (albeit different devices)
Standard User scoop
(learned) Tue 09-Oct-12 22:50:08
Print Post

Re: Does anyone understand Homehub 2 DHCP??


[re: ukhardy07] [link to this post]
 
Fair suggestion!

I thought I was suppoed to gst a HH3 as part of he Infinity 2 upgrade,and have also been promised a black Vision box (still onthe white/silver one) but neither have ever materialised......


Register (or login) on our website and you will not see this ad.

Standard User ukhardy07
(experienced) Tue 09-Oct-12 22:51:16
Print Post

Re: Does anyone understand Homehub 2 DHCP??


[re: scoop] [link to this post]
 
Does the HH2 even work properly on infinity?

Might be the isssue
Standard User scoop
(learned) Tue 09-Oct-12 22:53:35
Print Post

Re: Does anyone understand Homehub 2 DHCP??


[re: ukhardy07] [link to this post]
 
Appears to work on Infinity2, on the back of the white FTTC modem. Speeds on the internet connection are fine, both up and down. (76 up, 19 down).
Administrator MrSaffron
(staff) Tue 09-Oct-12 23:21:36
Print Post

Re: Does anyone understand Homehub 2 DHCP??


[re: scoop] [link to this post]
 
What model of TP-LINK WAP, usually a WAP does not have a built in DHCP server. The ones that do are NAT routers.

Two DHCP servers on the same physical LAN can cause problems, beyond the original issue with DHCP when you had just the HH2.

Andrew Ferguson, andrew@thinkbroadband.com
www.thinkbroadband.com - formerly known as ADSLguide.org.uk
The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User RobertoS
(sensei) Wed 10-Oct-12 00:22:48
Print Post

Re: Does anyone understand Homehub 2 DHCP??


[re: MrSaffron] [link to this post]
 
But didn't you say it works OK if the two DHCP servers are actually using different subnets, not ranges of the same one which is what the OP has done.

My broadband basic info/help site - www.robertos.me.uk | Domains,website and mail hosting - Tsohost.
Connection - Plusnet Extra Fibre (FTTC). Sync ~ 57.4/14.6Mbps @ 600m. - BQM

"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Allergy information: This post was manufactured in an environment where nuts are present. It may include traces of understatement, litotes and humour.

Edited by RobertoS (Wed 10-Oct-12 00:23:43)

Standard User scoop
(learned) Wed 10-Oct-12 13:57:15
Print Post

Re: Does anyone understand Homehub 2 DHCP??


[re: MrSaffron] [link to this post]
 
It's a TL-WA701ND version 1 WAP.

Had not considered using different subnets as suggested in the later post, just different IP address ranges. Naive question but would the wireless devices (on one subnet) be able to access internet via the hub, which would be on a different subnet?
Administrator MrSaffron
(staff) Wed 10-Oct-12 14:17:30
Print Post

Re: Does anyone understand Homehub 2 DHCP??


[re: RobertoS] [link to this post]
 
Two DHCP servers on the same physical LAN sounds a nightmare, as a device will look for any DHCP device and pick the first one.

Now if using MAC restrictions it might solve the problem, but then why bother with DHCP and not just set static IP addresses?

Andrew Ferguson, andrew@thinkbroadband.com
www.thinkbroadband.com - formerly known as ADSLguide.org.uk
The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User BatBoy
(legend) Wed 10-Oct-12 14:23:42
Print Post

Re: Does anyone understand Homehub 2 DHCP??


[re: scoop] [link to this post]
 
It depends on what default gateway the DHCP server hands out. But if it all works, I think you don't mind the double NAT.


_____________________________________________________________________________________________ this is not usenet __________________
Pages in this thread: 1 | 2 | (show all)   Print Thread

Jump to