Joined: 10 Nov 2018 Posts: 350 Location: South Carolina
Posted: Wed Jan 30, 2019 16:30 Post subject: WRT3200ACM v1 100% CPU Load Average after flash
Folks,
Interesting observation in the last few betas. No scientific observation, just a general eyebrow raising activity, and I'm unsure of when it actually started.
100% of my flashing to my router is across the lan, and I almost never do a hard reset.
I've noticed the last few flashes (or more), that after a short time of operation, the router will begin to run warmer, and the cpu average stays at 100%. I can find no rime or reason for it, for the router seems to be working properly. However, until I cold boot the router, it will continue to run at 100%. Once I reboot the router, it settles back down to less than 3% on average until I flash again. I almost never see anything over 50% even with heavy video stream activity.
Anyone else noticing this kind of activity? And perhaps have a reason why this may be happening?
Same router here, I haven't observed this issue with mine, but the past few updates have rendered my 5GHz useless unless I do a hard reset or restore factory settings.
In my experience with DD flashing across the network can induce weird things to happen. It won't happen 99 percent of the time but eventually you will get a build that will not behave properly when flashed over the network. I stopped flashing DD across the network a long time ago (years) and now always flash directly hooked up to the router. It's quicker I know to just flash across the network but I've found that flashing PC to router directly will yield more reliable results. _________________ WRT1900ACSv2
Joined: 30 May 2017 Posts: 582 Location: Rural Manitoba
Posted: Wed Jan 30, 2019 17:35 Post subject: Load, usage and temperature
I saw this with r38381 and had posted such.
100% usage, 1.00 + load across the board, temperature at least +10C higher than normal.
Did not need to reboot though, strange enough all I did was apply settings and everything stabilized.
Had this occur on my 3200's and my 1900 V1.
The only other problem I noticed with r38381 was after a couple of days it began loading down with access denied by "unknown" multiple red lines.
I disabled the telnet access on the gui and rebooted, since then no recurrence. _________________ Starlink & DSL -> TPLink TL-R470T+
->
WRT3200acm Master WDS 5GHz 80Mhz CH 100 (+6) r55819
Ath1 2.4Ghz Disabled
99 Static Leases
ExpressVPN
WRT3200acm r55819 WDS Station 5Ghz
Ath1 AP N/G Mixed Channel 11 HT40
WRT1900Ac V1 5Ghz r55819 WDS Station
(Defective, no 2.4Ghz but 5Ghz works great)
WRT1900AC V1 5Ghz AC 80Mhz WDS Station r55819
2.4Ghz AP Ch1 HT20 Mixed
WRT1900ACS SPARE r54914
WRT1900AC SPARE r54914
WRT1900AC V1 5Ghz AC 80Mhz WDS-AP r55819
2.4Ghz AP Ch1 HT20 Mixed
WRT54G DD-WRT v3.0-r37305 micro AP CH 6 Mixed - Not in use
Joined: 10 Nov 2018 Posts: 350 Location: South Carolina
Posted: Wed Jan 30, 2019 18:42 Post subject: Re: Load, usage and temperature
melk wrote:
Same router here, I haven't observed this issue with mine, but the past few updates have rendered my 5GHz useless unless I do a hard reset or restore factory settings.
I noticed that on an earlier flash. When the security choices changed to what it is now, mutable radio buttons as options. Occasionally clients wouldn't connect unless I hard reset. But it doesn't always happen.
DaveI wrote:
In my experience with DD flashing across the network can induce weird things to happen. It won't happen 99 percent of the time but eventually you will get a build that will not behave properly when flashed over the network. I stopped flashing DD across the network a long time ago (years) and now always flash directly hooked up to the router. It's quicker I know to just flash across the network but I've found that flashing PC to router directly will yield more reliable results.
Maybe I represented that wrong. I am directly connected to the router, but via the lan cable. No bridges or other routers are between my desktop and the router. All network connections are also still present when I flash otherwise.
WENED wrote:
I saw this with r38381 and had posted such.
100% usage, 1.00 + load across the board, temperature at least +10C higher than normal.
Did not need to reboot though, strange enough all I did was apply settings and everything stabilized.
Had this occur on my 3200's and my 1900 V1.
The only other problem I noticed with r38381 was after a couple of days it began loading down with access denied by "unknown" multiple red lines.
I disabled the telnet access on the gui and rebooted, since then no recurrence.
Problem in doing that is the router configuration is complex enough it would be a pain to re-apply all my setting. Not sure I would do that instead of a hard reboot. Do you know the origin of the “unknown” access message? Would probably drive me batty not knowing what was causing that (external log in attempts, or a process trying to get access, etc).
I have no basis for this, but it almost feels like some kind of "memory leak" or something that a clearing of ram on the hard boot resolves. Only problem with that is the memory available display, and use, doesn't seem to be abnormal.
Joined: 30 May 2017 Posts: 582 Location: Rural Manitoba
Posted: Wed Jan 30, 2019 20:16 Post subject: Re: Load, usage and temperature
scar1943 wrote:
melk wrote:
Same router here, I haven't observed this issue with mine, but the past few updates have rendered my 5GHz useless unless I do a hard reset or restore factory settings.
I noticed that on an earlier flash. When the security choices changed to what it is now, mutable radio buttons as options. Occasionally clients wouldn't connect unless I hard reset. But it doesn't always happen.
DaveI wrote:
In my experience with DD flashing across the network can induce weird things to happen. It won't happen 99 percent of the time but eventually you will get a build that will not behave properly when flashed over the network. I stopped flashing DD across the network a long time ago (years) and now always flash directly hooked up to the router. It's quicker I know to just flash across the network but I've found that flashing PC to router directly will yield more reliable results.
Maybe I represented that wrong. I am directly connected to the router, but via the lan cable. No bridges or other routers are between my desktop and the router. All network connections are also still present when I flash otherwise.
WENED wrote:
I saw this with r38381 and had posted such.
100% usage, 1.00 + load across the board, temperature at least +10C higher than normal.
Did not need to reboot though, strange enough all I did was apply settings and everything stabilized.
Had this occur on my 3200's and my 1900 V1.
The only other problem I noticed with r38381 was after a couple of days it began loading down with access denied by "unknown" multiple red lines.
I disabled the telnet access on the gui and rebooted, since then no recurrence.
Problem in doing that is the router configuration is complex enough it would be a pain to re-apply all my setting. Not sure I would do that instead of a hard reboot. Do you know the origin of the “unknown” access message? Would probably drive me batty not knowing what was causing that (external log in attempts, or a process trying to get access, etc).
I have no basis for this, but it almost feels like some kind of "memory leak" or something that a clearing of ram on the hard boot resolves. Only problem with that is the memory available display, and use, doesn't seem to be abnormal.
Maybe I wasn't clear about "apply settings" as I did not change anything, just hit the apply to restore the router to normal operation.
As for where the random access attempts are coming from, I have no idea but do remember this from earlier builds and a number of people mentioning it. Rather than drive myself nuts worrying about who is trying to access my router, I simply disable Telnet unless I have a need to use it. _________________ Starlink & DSL -> TPLink TL-R470T+
->
WRT3200acm Master WDS 5GHz 80Mhz CH 100 (+6) r55819
Ath1 2.4Ghz Disabled
99 Static Leases
ExpressVPN
WRT3200acm r55819 WDS Station 5Ghz
Ath1 AP N/G Mixed Channel 11 HT40
WRT1900Ac V1 5Ghz r55819 WDS Station
(Defective, no 2.4Ghz but 5Ghz works great)
WRT1900AC V1 5Ghz AC 80Mhz WDS Station r55819
2.4Ghz AP Ch1 HT20 Mixed
WRT1900ACS SPARE r54914
WRT1900AC SPARE r54914
WRT1900AC V1 5Ghz AC 80Mhz WDS-AP r55819
2.4Ghz AP Ch1 HT20 Mixed
WRT54G DD-WRT v3.0-r37305 micro AP CH 6 Mixed - Not in use
Posted: Sun Aug 02, 2020 16:20 Post subject: WRT3200ACM r43904 permanent load average 1.00+
I have tried build r43904 on my WRT3200ACM (flashed with factory/nvram reset) and observed the same load average behavior (load average went to 1.00+ in about 10 minutes after restart). I was trying to find the root cause without success. I have reverted to previous build r40134 which does not have that issue (so, stable build for me).
Factory-to-ddwrt.bin from linksys newest update to r41379 (aka r41380) save, and apply all settings then Webflash to Firmware Version: DD-WRT v3.0-r43886 std (07/21/20) save, and apply all settings. This fixed the load average issues with my wrt3200acm. I keep r41379 on one of my partitions just to Webflash newest build. After doing so r43886 has been a solid build even for WiFi.
Posted: Sun Aug 02, 2020 19:27 Post subject: Very interesting for going to latest dd-wrt on WRT3200ACM
Justanotherbrokenrouter wrote:
Factory-to-ddwrt.bin from linksys newest update to r41379 (aka r41380) save, and apply all settings then Webflash to Firmware Version: DD-WRT v3.0-r43886 std (07/21/20) save, and apply all settings. This fixed the load average issues with my wrt3200acm. I keep r41379 on one of my partitions just to Webflash newest build. After doing so r43886 has been a solid build even for WiFi.
Thank you for sharing that valuable information!
To be honest I was just thinking to give OpenWRT a try .
Do you mean that:
1) I need to update to latest Linksys firmware (old one is not good idea?). One off-topic question - can I go directly from stock to latest Linksys firmware?;
2) Go from it to r41379 (https://download1.dd-wrt.com/dd-wrtv2/downloads/betas/2019/10-24-2019-r41379/linksys-wrt3200acm/factory-to-ddwrt.bin) on the other partition. Save and apply all settings - do you mean default dd-wrt settings for that build? Should I erase nvram before going to r43886?
3) Go from r41379 to r43886 using https://download1.dd-wrt.com/dd-wrtv2/downloads/betas/2020/07-21-2020-r43886/linksys-wrt3200acm/ddwrt-linksys-wrt3200acm-webflash.bin with clearing nvram. Save and apply all settings - do you mean default dd-wrt settings for that build?
4) If the load average is normal proceed with my real router settings.
It will be great to clarify that for me and I suppose other WRT3200ACM users.
I do recommend installing the newest version of Linksys Firmware if this hasen't already been done. Only start with this step if wanting to do a clean install.
__________________________________________________________
Install DD-WRT Build r41379 (aka r41380) In the Firmware Update section of your Linksys WRT3200ACM Wi-Fi Router using file (factory-to-ddwrt.bin), OR if already on DD-WRT Firmware upgrade using the DD-WRT Administration/Firmware Upgrade Tab to DD-WRT build r41379 (aka r41380) file (ddwrt-linksys-wrt3200acm-webflash.bin)
https://download1.dd-wrt.com/dd-wrtv2/downloads/betas/2019/10-24-2019-r41379/linksys-wrt3200acm/
* "nvram erase && reboot" after installing build r41379, but don't before instaling build r43886, or newer build. Only use "nvram erase && reboot" if wanting a clean install.
*Save, and apply settings 1st using DD-WRT build r41379 (aka r41380).
*Use DD-WRT build r41379 (aka r41380) as Default for webflashing to newest DD-WRT Builds
*Make sure to disable Wireless Physical Interface ath2 [2.4GHz/5 GHz/802.11ac] - SD8887 802.11ac settings Wireless Network Mode, and Wireless SSID
Broadcast as some are having issues with this area disappearing on some DD-WRT Builds after using (ddwrt-linksys-wrt3200acm-webflash.bin).
*Always save twice, and apply settings once for Wireless Basic Sittings
*After installing build r41379 (aka r41380) first should notice load average is corrected, and again after newest build is Wedflashed.
*Above are the First steps used when I found that it worked the bugs out. SINCE THEN I HAVE WEBFLASHED THE NEWEST BUILD FROM THE PARTITION WITH DD-WRT BUILD R41379 INSTALLED, AND THE BUGS ARE STILL GONE.
Browser: Firefox Version 78.0.2 (64-bit)
Router Model: Linksys WRT3200ACM
Previous Version: r41379 (aka r41380)
Firmware Version: DD-WRT v3.0-r43886 std (07/21/20)
Kernel Version: Linux 4.9.230 #1918 SMP Tue Jul 21 00:48:11 +03 2020 armv7l
OpenVPN Client: (NordVPN Server) OK
5GHz 40MHz Mixed 36 + 40 5180MHz WPA2 AES OK
(Received RX OK, no error) (Transmitted TX OK, no error)
2.4GHz 20MHz Mixed 11-2462MHz WPA2 AES OK
(Received RX OK, no error) (Transmitted TX OK, no error)
Load Average: 0.00, 0.00, 0.00 0% OK
Temperatures: CPU 59.4 °C / WL0 34.6 °C / WL1 35.6 °C OK (USB cooling fan)
Clients: 2 PS3s, 2 PS4s, 2 Firesticks, 1 Firebox, 3 Android phones, 2 Laptops, 1 Desktop
Status: Webflash no reset, Uptime 3 days, 36 min, no-resolv/strict-order, QoS FQ_CODEL MAC Priority, no keep alive, or reboot needed OK.
*Using (Speedtest) Android App will cause WiFi error's.
Last edited by Justanotherbrokenrouter on Wed Aug 05, 2020 13:06; edited 8 times in total
I'm getting this too. Top reports Nic:100%. So sad.
(Went back down to 43471 build, all is well on the western front. CPU usage back down to normal.)
Edit- Nope above is a dirty lie, 43471 is maxing out CPU usage just takes a little longer...back to square one.
Edit 2- Ok, this is probably known to many, but it solved my problem. DISABLE ATH2 BEFORE UPGRADING TO ANY RECENT BUILDS. After going back and forth on countless firmware versions (and testing the awesome backup of DD WRT), that was it. Disabled ath2 upgraded to 44048 (most recent at the time of this post) and cpu normal load now.
Edit 2- Ok, this is probably known to many, but it solved my problem. DISABLE ATH2 BEFORE UPGRADING TO ANY RECENT BUILDS. After going back and forth on countless firmware versions (and testing the awesome backup of DD WRT), that was it. Disabled ath2 upgraded to 44048 (most recent at the time of this post) and cpu normal load now.
I listed above in my recent comment basically using a older version as in r41379 would fix all the bugs before webflashing a new build. 🤣
Posted: Mon Aug 10, 2020 14:04 Post subject: disable ath2
Hi,
i installed DD-WRT v3.0-r41218 std (10/01/19) on my 3200acm to turn off ath2. I use it as a client-bridge on 5ghz to a netgear r7800 on stock firmware. ath1 is a 2.4 GHZ only N AP.
That worked great on idle:
Load Average 0% 0.00, 0.01, 0.00
Temperatures CPU 71.7 °C / WL0 39.1 °C / WL1 40.5 °C
When i upgraded directly without reset to 44085 the ath2 is not shown in GUI this are the idle values:
Load Average 0% 1.03, 0.87, 0.78
Temperatures CPU 91.7 °C / WL0 54.1 °C / WL1 52.5 °C
I stepped back to 41218 via 3xswitchreset and i can see ath2 and it is enabled but all values are down again like before when it was disabled.
I think i install the stock firmware again. Does somebody know, how to see the temperatures in the stock gui or via telnet?
