[UK Sentinel]

For DNS, you will be using the Routers DNS, as DrayTek 130 is in Bridge Mode, everything passes through to Router. modem only converts what BT sends down the DSL line into something the Router can understand  (PPPoE)

 

In a completely sane world, madness is the only freedom (J.G.Ballard).

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[UK Sentinel]

DNS is a means by which Real Name, (URL’s) are mapped to IP address, so when you type http://www.bbc.co.uk, the PC knows to go to 212.58.249.209, your DrayTeK is a modem and is in bridge mode, so any user typing in Real names, is automatically mapped to an IP address via your ASUS router, changing your DrayTeK DNS details offers no advantage, as the DNS on the modem is not used by user in a typical scenario.

Above is short explanation, as I realise DNS is way more complicated, but trying to keep user explanation user friendly.

Hope that helps?

DNS: https://en.wikipedia.org/wiki/Domain_Name_System

Bridge Mode: https://en.wikipedia.org/wiki/Bridging_(networking)

In a completely sane world, madness is the only freedom (J.G.Ballard).

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[UK Sentinel]

I used to wonder about that also, From the DrayTeK 130 user guide, the date and Time can be adjusted from System Maintenance > Date and Time, but as we are running the special BT approved build, this option is not available via the GUI.

When you log on to the DrayTeK 130, it should say ‘User Mode is OFF’, and I have always assumed, this means I is locked down and never found the a way to enable user mode?

I never tried the CD that came with the disk, but I assumed it does nothing extra ?

In a completely sane world, madness is the only freedom (J.G.Ballard).

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[UK Sentinel]

ASUS have given me the following firmware for the DSL-AC88U, this version has had Broadcom patch 5 removed and ASUS say it fixes Broadcom Memory leak, so have dug out my DSL-AC88U and running this version now, feel free to trial this firmware if you wish, factory reset and build router from scratch (not backup) is advised.

let us know if memory leak is fixed, so I can feed this back to ASUS

DSL-AC88U/ DSL-AC3100 beta non-debug Build583 as follows.

 

DSL-AC88U_v9.10.06_build583.zip

https://www.asuswebstorage.com/navigate/s/EE16CBFAA88C4D599899BBB09AF662B7Y

 

DSL-AC3100_v9.10.06_build583.zip

https://www.asuswebstorage.com/navigate/s/D7C811CC648B434EB6E1D0D6E4E8E465Y

 

Alternate links,

DSL-AC88U_v9.10.06_build583.zip

https://www.asuswebstorage.com/navigate/s/A4551D582D014BB5A41C17931CEDB2C04

 

DSL-AC3100_v9.10.06_build583.zip

https://www.asuswebstorage.com/navigate/s/8A3BD84484124396A6ED1EECF13A7D694

In a completely sane world, madness is the only freedom (J.G.Ballard).

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[UK Sentinel]

Good news then, How did you become aware of the random disconnects, was this by looking in the logs, or via using the service, and then it not being available for a couple of minutes, the DrayTeK and ASUS logs are more comprehensive, where as the logs for the Netgear D7800 are much more basic.

Either way, just keep an eye on your line stats, to see if over time, the synch speeds changes dramatically ?

In a completely sane world, madness is the only freedom (J.G.Ballard).

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[UK Sentinel]

Glad I asked, In my view, this is perfectly normal, the DSLAM/Exchange does periodically reset connection with modem device, just to refine connections etc, mine is also every other week, and this is regardless of DSL Chipset, I did at one stage (like you I think) have the DSL-AC68U and this re-sync’d almost every few days.

Does the Synch cause any problems, ie. does this leave router hanging afterwards, if not then I would not worry about this at all ;-)

In a completely sane world, madness is the only freedom (J.G.Ballard).

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[UK Sentinel]

Is this Random, once a week, every few days?

In a completely sane world, madness is the only freedom (J.G.Ballard).

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[UK Sentinel]

Just before you do that, when you say you have had the five disconnects, are these every day, or random, I forgot to ask last night ?

In a completely sane world, madness is the only freedom (J.G.Ballard).

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[UK Sentinel]

You do seem to be having fun, does the DrayTeK at any point say it is in training mode in the UI, if so then I think a call with ISP is needed, to check for line faults, (again) also make sure DrayTek 130 is running firmware 3.8.3 BT

Also maybe worth looking at ASUS router and see if you can do the following, change the settings of the router to enable baby jumbo frames and an MTU of 1508, see if this helps?

Alas a case of trial an error ;-)

In a completely sane world, madness is the only freedom (J.G.Ballard).

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[UK Sentinel]

Thanks Babis3g as always ;-)

In a completely sane world, madness is the only freedom (J.G.Ballard).

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[UK Sentinel]

Thanks @Craig, cutting and pasted link from my other Forum ‘WhatsYourRouter.com’ and issue now fixed

UK Sentinel

In a completely sane world, madness is the only freedom (J.G.Ballard).

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