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Standard User crule
(newbie) Wed 27-Jan-16 08:18:09
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Ip Address Speed variation


[link to this post]
 
I have noticed over at least a 2 year period that my HH4 reboots itself every 14 days. When it does this it of course changes its connected Ip address. If I get an Ip address in the range 86.165.37.*** I get .5Mbit/s higher download speed than if i pickup an Ip address in the range 31.49.232.217
When you struggle to get a D/L of 2 Mbit/s this .5 Mbit/s is important.
The SNR does not change on the line and has been at 15db for ever.
Standard User ian007jen
(committed) Wed 27-Jan-16 08:43:05
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Re: Ip Address Speed variation


[re: crule] [link to this post]
 
The SNR does not change on the line and has been at 15db for ever

I think the above is more important to sort out.....could be worth >1Mbps.
Standard User crule
(learned) Wed 27-Jan-16 08:48:59
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Re: Ip Address Speed variation


[re: ian007jen] [link to this post]
 
That was my initial thought but as the line length is in excess of 5km of overhead old copper covered ally cable I suspect the physics is against me


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Standard User Oliver341
(eat-sleep-adslguide) Wed 27-Jan-16 09:45:01
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Re: Ip Address Speed variation


[re: crule] [link to this post]
 
In reply to a post by crule:
I have noticed over at least a 2 year period that my HH4 reboots itself every 14 days.

It does that by design, but BT doesn't tell us why.

In reply to a post by crule:
The SNR does not change on the line and has been at 15db for ever.

You might want to request moderator help on the official BT forum about the 15dB noise margin, that's too high.

Oliver.

Edited by Oliver341 (Wed 27-Jan-16 09:45:50)

Standard User tommy45
(knowledge is power) Wed 27-Jan-16 11:02:28
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Re: Ip Address Speed variation


[re: crule] [link to this post]
 
The difference in throughput between IP ranges is more likely to be down to the route through BT's maze that is their network, it takes would point to a congested link somewhere maybe, as IP addresses don't influence sync speeds
Standard User tommy45
(knowledge is power) Wed 27-Jan-16 11:03:38
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Re: Ip Address Speed variation


[re: Oliver341] [link to this post]
 
In reply to a post by Oliver341:
In reply to a post by crule:
I have noticed over at least a 2 year period that my HH4 reboots itself every 14 days.

It does that by design, but BT doesn't tell us why.
Do we really need BT to tell us the answer to that?
Administrator MrSaffron
(staff) Wed 27-Jan-16 13:09:08
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Re: Ip Address Speed variation


[re: crule] [link to this post]
 
If the daytime displayed SNR margin is 15dB and the same at night, then time to chase BT to reset this to say 9dB and gain a chunk of speed

The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User crule
(learned) Wed 27-Jan-16 14:35:45
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Re: Ip Address Speed variation


[re: MrSaffron] [link to this post]
 
Many thanks to all for the suggestions
I have requested a SNR reset to 9db margin which will i am sure help.
I am rather concerned that the auto (?) reboot of the HH4 is an excuse for DLM to cut in.
Can anyone suggest a good router/modem for ADSL which doesn't do this?
Standard User RobertoS
(elder) Wed 27-Jan-16 15:13:57
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Re: Ip Address Speed variation


[re: crule] [link to this post]
 
If DLM thinks it needs to do something it will do it. It won't wait for a re-sync caused by you or an auto-reboot.

The main problem if the auto-reboot is overnight is that night-time reconnections are nearly always slower than daytime ones. So following one, a daytime re-sync can add considerably to connection speeds.

The indispensable man or woman passes from the scene, and what happens next is more or less the same thing as was happening before.
My broadband basic info/help site - www.robertos.me.uk. Domains, site and mail hosting - Tsohost.
Connection - AAISP Home::1 80/20. Sync 59504/15641kbps @ 600m. - BQM
Administrator MrSaffron
(staff) Wed 27-Jan-16 15:28:18
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Re: Ip Address Speed variation


[re: RobertoS] [link to this post]
 
The 14 day reboot cycle avoids issues with software, presumed memory leaks so that after much longer the router starts to perform badly as it gets memory constrained. Some devices like Sky set-top boxes have had versions where periodic reboots speeded up the GUI etc.

In terms of ADSL modem, what are we all suggesting these days? The TP-Link W9980 seems stable on VDSL2 at least (and I've a known troublesome line) and even if your ADSL2+ is not mega fast a basic dual-band wireless device (assuming your mobile/tablet runs with dual-band) should avoid most of the 2.4GHz congestion issues.

The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
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