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Like most of ASUS settings compared to say a Netgear option, you get many more (options) to configure for a given scenario.
lcp-echo-adaptive :
When adaptive LCP echo is enabled, LCP echo requests are only sent if the link is idle (no traffic) , avoiding the common situation where a congested PPP link (e.g. during torrenting) is falsely detected as disconnected because the LCP replies are not received in time.
LCP echo requests :
An LCP Echo Request are sent once every (x) seconds imposes minimal overhead, but allows for rapid detection of connection failure. One or two consecutive failures will happen from time to time with such a short interval, but 4 in a row almost guarantees the connection has failed.
In simple English – PPP Echo will send an LCP echo-request frame to the peer every ‘n’ seconds. Under Linux, the echo-request is sent when no packets have been received from the peer for (n) seconds. Normally the peer should respond to the echo-request by sending an echo-reply.
If Internet Detection is set to disabled and DSL link drops, you will lose DSL connectivity and access to internet will be lost (always keep Internet Detection Enabled/PPP Echo). I believe (never tested this myself)
Just A good way to help diagnose/verify if you have a stable DSL connection but can be troublesome under heavy load hence why ‘lcp-echo-adaptive’ is useful in certain situations
https://uktechhub.com/forums/topic/dsl-modem-and-router-technical-terms-and-abbreviations-etc/
In a completely sane world, madness is the only freedom (J.G.Ballard).
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Ok, so I spoke with ASUS regarding various 5GHz wifi issues and ASUS have asked the following in relation to their MediaTek based DSL Modem Routers
‘Factory reset router and rebuild config from scratch, not back-up file’
If their problem will occur within 24 hours, ask them to submit a Feedback form with “DSL Line / Wi-Fi Diagnostic *” option set as “Wi-Fi 5GHz” and “Diagnostic debug log capture duration” set as the time you think the problem will occur. (e.g. “24 hours”)
When sending Feedback, place in comments / message box in first line UK Sentinel so they can find feedback form more easily ;-)
Have fun
In a completely sane world, madness is the only freedom (J.G.Ballard).
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Ok, so I spoke with ASUS regarding various 5GHz wifi issues and ASUS have asked the following in relation to their MediaTek based DSL Modem Routers ‘Factory reset router and rebuild config from scratch, not back-up file’ If their problem will occur within 24 hours, ask them to submit a Feedback form with “DSL Line / Wi-Fi Diagnostic *” option set as “Wi-Fi 5GHz” and “Diagnostic debug log capture duration” set as the time you think the problem will occur. (e.g. “24 hours”) When sending Feedback, place in comments / message box in first line UK Sentinel so they can find feedback form more easily ;-) Have fun
I sent tens of feedback with Dsl capture and added note as “to diagnostic” to the comment section before. If it would help, fyi.
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ASUS as you can imagine receive many thousands of feedback forms every day, this time when you send a feedback form with the UK Sentinel added, the form will be directed to a dedicated engineer specifically for these 5GHz wifi issues.
This time they are listening
In a completely sane world, madness is the only freedom (J.G.Ballard).
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Yes, ASUS stopped supporting the DSL-N66U back in 2019 and the latest firmware I have for the DSL-N66U is – DSL-N66U_v9.1.2.3_790-g61d41b5
If you want this firmware, see link below where you can request a copy
In a completely sane world, madness is the only freedom (J.G.Ballard).
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Our powerline had an electrical blowout/fire and damaged the DSL line as well.
My DSL-AC51 shifted down to G.lite (G.992.2) , 1.5 Mbit/s downstream and I was still able to use the internet for a couple of days until the DSL line was repaired.
The ISP provided modem would not connect at all through the damaged DSL line, but the Asus could. (at a lower than normal speed)Thanks Asus for making an awesome DSL modem.
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Our powerline had an electrical blowout/fire and damaged the DSL line as well. My DSL-AC51 shifted down to G.lite (G.992.2) , 1.5 Mbit/s downstream and I was still able to use the internet for a couple of days until the DSL line was repaired. The ISP provided modem would not connect at all through the damaged DSL line, but the Asus could. (at a lower than normal speed) Thanks Asus for making an awesome DSL modem.
It is good to hear positive news for ASUS products,
In a completely sane world, madness is the only freedom (J.G.Ballard).
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DSL ASUSWRT Beta firmware v9.1.2.3_906-g96e2b5b now available, please refer to change note and firmware link below.
2020_12_04_v9.1.2.3_906-g96e2b5b
https://www.asuswebstorage.com/navigate/a/#/s/E23A223949E440AFBB391B40D4EB16E8Y(wrong link initially supplied)https://www.asuswebstorage.com/navigate/a/#/s/169819C89B2842A0A1C8397F628A2B22Y
- [WiFi][MT7612] KR00K CVE-2019-15126 security enhancement adopted.
- VDSL WAN PTM list updated, added Lebanon ISP Ogero.
- Fixed Web UI related issues.
- Firmware Live Update feature enhanced.
- [PPP] Support option, lcp-echo-adaptive(Web UI > WAN > Internet Connection > Additional pppd options(specifically for PPP connection type).
- Web Server security enhancement adopted.
Note: the DSL-AC51 WiFi issue raised have also been addressed in this version (ASUS listened)
Usual UKTH ASUS DSL beta T&C’s apply
In a completely sane world, madness is the only freedom (J.G.Ballard).
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Link it is for old beta
Well spotted, I will chase ASUS
In a completely sane world, madness is the only freedom (J.G.Ballard).
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Update link as follows:
2020_12_04_v9.1.2.3_906-g96e2b5b
https://www.asuswebstorage.com/navigate/a/#/s/169819C89B2842A0A1C8397F628A2B22Y
Note: I will amend above posts to reflect this new link and not all the usual models have been updated ?
See attachment below for list of updated DSL (MediaTeK) units
Attachments:
In a completely sane world, madness is the only freedom (J.G.Ballard).
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