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Author Topic: Nighthawk® X4S D7800 VDSL/ADSL Modem Router  (Read 16964 times)

Charles

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Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
« Reply #30 on: May 04, 2017, 01:22:11 PM »

From my testing firmware 1.0.1.16 is not stable on the modem side, I lost sync around 5am and my line was interleaved so I loaded the older 1.0.1.10 my line has been solid as a rock and im back on the fast path!   

I'm seeing DSL dropouts almost daily on Sky Fibre with firmware 1.0.1.16. Before I try 1.0.1.10, how can I determine if my line is interleaved or on fast path? Is it shown on the router's web interface?

Thanks in advance
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skyeci

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Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
« Reply #31 on: May 04, 2017, 08:58:14 PM »

Can you post a screen shot perhaps from the modem info? alternately if you had a broadcom unlocked modem you could get more detailed stats. If the 7800 could be used as a router only you could have a seperate modem in front of it so you could monitor in more detail etc..

Charles

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Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
« Reply #32 on: July 01, 2017, 12:09:23 PM »

@skyeci,

Thanks for your reply. It turned out that the D7800 does not provide detailed DSL stats. I found out that the line was connected to a Huawei cabinet, so I installed an unlocked HG612 which provided some useful stats and more importantly, the line is now completely stable with no dropouts. The mismatch of the flaky Lantiq chipset in the D7800 and the Broadcom chipset in the Huawei cabinet was likely to be the cause of the dropouts.

I returned the D7800 and bought the R7800 instead (the cheaper, router-only version of the 7800 series), made a little modification to add DHCP authentication for Sky, and now everything is working well with several weeks of stable uptime.

The R7800 has excellent third-party firmware options, whereas the D7800 has none.

Lessons learnt: Match chipsets and keep modem and router separate for best flexibility.
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skyeci

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Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
« Reply #33 on: July 01, 2017, 12:30:02 PM »

Good to hear its sorted. Are you uploading to mdws?
cheers

Charles

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Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
« Reply #34 on: July 01, 2017, 12:46:06 PM »

Not currently, but at some point I will set up a Raspberry Pi to do it :)
Thanks again.
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