[lostcause]

TSuNaMi wrote:

Hello. I’ve been having a different problem for the past week. My internet is getting extremely slow. At that time, I want to login to the modem because I wonder if there is a CRC error, but I can’t even log in to the modem, I’m experiencing very slow connection to the modem… I don’t have crc errors or connection problems, but I’m experiencing slowness in reaching the modem. So what is the problem? i added picture.. my fw ver 960 official

Have to reboot mine now and then, usually after 2 weeks or so. Has been like this since the beginning, seems to run out of free RAM. I am on official FW 960.

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[lostcause]

Necati Akbulut wrote:

DSL-AC51_v9.1.2.3_928 How does anyone use this software? Is it healthy?

Have been using beta v9.1.2.3_886 for months. Its stable, however I dont use 5G WiFi.

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[lostcause]

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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[lostcause]

Impressive from Asus , after 7 years they bring a fix for my old router.

ASUS RT-N12 D1 Firmware version 3.0.0.4.380.8292
– Fixed CVE-2019-15126 (Kr00k) vulnerability.

https://www.asus.com/Networking/RTN12_D1/HelpDesk_BIOS/

 

 

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[lostcause]

Official firmware v 1.1.2.3_858  now available.
https://www.asus.com/Networking/DSL-AC51/HelpDesk_BIOS/

 

DSL:
– Bitswap setting adjustment for Web UI > QIS > Turkey profiles.
– DSL Driver updated – v5.6.36.0_2020_0327_asus.
– ADSL WAN (ATM) QIS manual setting/Auto detection list updated: Added Italy ISP Vodafone.
– ADSL WAN (ATM)/VDSL WAN (PTM) QIS manual setting list updated: Added United Kingdom ISP Cloudscape Connect.
– VDSL2 G.INP handling fine tuned.

Bug fixes and enhancements:
– Web UI > WebHistory Log/ AccessLog, “Clear” button added.
– Fixed OpenVPN related issues.
– Fine tuned Feedback feature.
– Fixed Web UI related issues.
– Live Update feature enhanced.
– Syslog > WiFi debug log level adjusted.

Security:
– Live Update Security enhancement.

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[lostcause]

UK Sentinel wrote:

@lostcause – I think I may have missed this post last time (apologies) good bug find and I will report the wifi scheduler issue/bug to ASUS A.S.A.P

Brilliant. Thanks !

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[lostcause]

lostcause wrote:

No it went down as usual after 6 days, I found the culprit, its the wireless scheduler. Every time it cycles the WiFi radio it uses extra memory until you runout (approx 6 – 7 days) at ~4MB. Firmware Version:v9.1.2.3_854

@Sentinel , did you report this wireless scheduler bug to Asus ? If so, much appreciated !

With the wireless scheduler enabled it cant make it past 6 days, with the scheduler turned off it already hums along for 15 days. [DSL-AC51]

 

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[lostcause]

pavlf wrote:

Yes. No memory leak. I think it’s probably a god amongst the ac88u models. I’ll be selling tickets for people to come in and look at it soon. It might end up like Lourdes. There could be an entire industry sets up down the street selling replica aerials and rj45 cable. But, oh dear, this is just a dream isn’t it. The crown is about to be be wrested from my grasp. If only I hadn’t rebooted on Sunday afternoon. Everything could have been so different. Unless, unless, unless I manage to locate your address via some sort of reverse ip seach in conjunction with cross-references to past posts and cut your line!

LoL

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[lostcause]

No it went down as usual after 6 days, I found the culprit, its the wireless scheduler.
Every time it cycles the WiFi radio it uses extra memory until you runout (approx 6 – 7 days) at ~4MB.
Firmware Version:v9.1.2.3_854

 

 

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[lostcause]

UK Sentinel wrote:

Great news about memory usage and finally working well for you and your settings (I will relay this positive news back to ASUS)

Think this time was just lucky that it freed-up RAM by itself. Will report the setting bug once I am sure about it.
Not a big deal, just for reporting to the Asus FW team.

 

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[lostcause]

Free memory DSL-AC51 is dropping to 4 MB within 6 days , and then it usually reboots. But this time it managed to save itself by freeing up memory to 8 MB. See log.
Note: Free memory dropping to 4 MB within 6 days is due to my particular settings. Other users will likely not experience this.

Will reboot it manually and see what happens the next 6 days.

2020-04-23 05:38:10 [Informational] kernel: tcphy[1]: Link-down!!!
2020-04-23 05:38:10 [Informational] kernel: Link State: LAN_2 down.
2020-04-23 05:42:11 [Warning] kernel: mtd: page allocation failure. order:4, mode:0x40d0
2020-04-23 05:42:11 [Informational] kernel:
2020-04-23 05:42:11 [Informational] kernel: Call Trace:
2020-04-23 05:42:11 [Informational] kernel: [<8000bf10>] dump_stack+0x8/0x34
2020-04-23 05:42:11 [Informational] kernel: [<8008adcc>] __alloc_pages_nodemask+0x51c/0x69c
2020-04-23 05:42:11 [Informational] kernel: [<8008af64>] __get_free_pages+0x18/0x4c
2020-04-23 05:42:11 [Informational] kernel: [<801ab098>] mtd_read+0x2ac/0x2c4
2020-04-23 05:42:11 [Informational] kernel: [<800b3d28>] vfs_read+0xc0/0x15c
2020-04-23 05:42:11 [Informational] kernel: [<800b3eec>] sys_read+0x58/0xc0
2020-04-23 05:42:11 [Informational] kernel: [<80004450>] stack_done+0x20/0x40
2020-04-23 05:42:11 [Informational] kernel:
2020-04-23 06:00:26 [Informational] kernel: ##### mbss_cr_enable, BssId = 1
2020-04-23 06:00:26 [Informational] kernel: br0: port 6(ra1) entering forwarding state
2020-04-23 06:00:26 [Informational] kernel: br0: port 6(ra1) entering forwarding state
2020-04-23 06:03:15 [Informational] kernel: AP SETKEYS WPA2 MAC=5C:1D:D9:41:1E:B8
2020-04-23 06:57:20 [Alert] monitorcfgmgr[374]: cfg_manager is er.
2020-04-23 06:57:20 [Alert] monitorcfgmgr[374]: restart cfg_manager!!
2020-04-23 06:57:21 [Debug] kernel: cfg_manager used greatest stack depth: 8028 bytes left
2020-04-23 06:57:22 [Informational] kernel: arpstorm_init
2020-04-23 06:57:22 [Informational] kernel: The number of cache node is 5
2020-04-23 06:57:22 [Informational] kernel: [restore_tmp_romfile, 186]restore file(/tmp/var/romfile.cfg)
2020-04-23 06:57:22 [Informational] kernel: [restore_tmp_romfile, 199]restore success.
2020-04-23 06:57:22 [Informational] kernel:
2020-04-23 06:57:22 [Informational] kernel: lanHost_read: Create node LanHost !
2020-04-23 06:57:22 [Informational] kernel: Link State: PVC_8_0 logistic interface up.
2020-04-23 06:57:22 [Informational] kernel: Link State: LAN_1 up.

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[lostcause]

UK Sentinel wrote:

Latest DSL ASUSWRT beta firmware v9.1.2.3_854-g837bd26 now available. Note; Normal ASUS beta Firmware T&C’s applies, see top of Forums 2020_04_16_v9.1.2.3_854-g837bd26 https://www.asuswebstorage.com/navigate/a/#/s/EEAC28BE937F42628055856245A0B366Y Changelog:

• Fixed Web UI related issues.
• Clear button now added for Web UI > Web History Log/ Access Log.
• OpenVPN related enhancements adopted.

Thanks for the update !
Have not installed it yet as I’m still honing in on the reboot bug. Getting close now… ;-)

 

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[lostcause]

UK Sentinel wrote:

What was memory usage / free memory value after seven days ?

7 MB free (DSL-AC51) after 7 days.
With the old settings it went down to 4 MB free within 6 days, and rebooted every 6 days.
Will leave it running a few days more to see what it does.

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[lostcause]

UK Sentinel wrote:

Updated beta firmware now available that fixes earlier ADSL sync problems v9.1.2.3_835-g5ced613 (UKTH) https://www.asuswebstorage.com/navigate/a/#/s/50F2BE9BC89E44F98860E933B7D0E618Y Note: Normal ASUS Beta Firmware T&C’s apply, see top of forum

 

Made it past 6 days runtime for the first time in a long time.
Now I have to revert the changes I made one by one to see which setting is causing the memory leak and sub-sequential reboot every 6 days.

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[lostcause]

UK Sentinel wrote:

No problem, I spoke with ASUS and the DSL-AC51U does not support 35b Profile but was told that it should synch OK via VDSL 17a for your speeds and work just fine. Looks like a weekly reboot is the only way around this

Still got 8 MB free RAM now after 4 days runtime, so I am definitely moving in the right direction….
BTW thanks for the above update

 

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