[Question/Recommendation] WRT3200ACM


Well, for starters the official repo for the WLAN driver at https://github.com/kaloz/mwlwifi still incorporates FW; that will probably be relevant to LEDE. The rest of the changes seem specific to the original firmware.


I have the latest LEDE build (with latest mwlwifi) on my WRT3200ACM and with one device attached to it, I can only get about 1/4 the speed of my ASUS AC87U (with Merlin) on all the wireless radios with several systems I tested (laptops, phones, USB dongles). This is very frustrating. I just bought it, so I am about to return it. I have WMM checked and removed all QoS type services (SQM) to ensure they weren't hindering it. It seems there is really no decent high end router that LEDE or DD-WRT can take full advantage of the latest radio chipsets without either retarding their speeds or becoming unstable. I may just get a R7800, but it also has its own issues.


Any new experiences with the WRT3200ACM? Better to go for the previous model WRT1900ACS?

Edit: Typo in first link name (should be WRT3200ACM instead of WRT1900ACS)


I have two WRT3200ACM (different locations) and they work very well and stable. Nothing to complain about. That said, I'm running master and not release builds on both.


Thank you (especially interpretating the (now corrected) typo in the right way :wink: ). I'm just irritated by the mass of "problem flashing WRT3200ACM" threads...
How is the the heat-resistance? Does the device become very hot (I don't have air con and in summer the temp my flat can be over 35°)?


I'm using a WRT3200ACM with the latest build of davidc502. (Davidc502- wrt1200ac wrt1900acx wrt3200acm wrt32x builds)
Overall no problems with this device but the wifi performance and coverage could be better...


Ambient is about 25C tops, it does get a bit warm but at 35C+ without any decent airflow your unit will probably overheat but that probably goes for any ARM-based router without any active cooling.


Hi friends,



is it possible to convert a WRT3200ACM to a WRT32X?, I saw that the hardware of the two are identical, the difference being only in software, this information is correct?

some users in oruns say that the WRT32X is faster and after fewer problems than the WRT3200, if it is true I think it would be due to fost being another.

What is your opinion of your friends about this?



As the hardware is identical, there is no difference for running OpenWrt on one or the other (aside from picking the right firmware image).


Thx, do you know about problems with the release builds?

Thank you as well. Could you provide some details for "performance and coverafe yould be better"?

Beside this: Why https://openwrt.org/toh/hwdata/linksys/linksys_wrt3200acm is called "v1" but https://openwrt.org/toh/linksys/wrt_ac_series?s[]=wrt3200acm lists only one model?


What problems?
There are no special problems with WRT3200ACM.
There was some difficulty a few months ago when Linksys changed the flash chip in the new WRT3200ACMs to an unknown and unsupported chip but that support was subsequently developed.

(note that all wrt1900ac series routers suffer to to some extent from he sporadic development of the mwlwifi wifi driver)


To my knowledge it should be fine(?) however pretty much all testing including 3rd party firmwares occurs on the master branch so I can't say for sure.


Thankk you. I just found https://www.mbreviews.com/linksys-wrt3200acm-dual-band-tri-stream-160-router-review/ where the author mentions:

UPDATE 07.22.2018: The Linksys WRT3200ACM has gone through multiple radical changes during its two years of existence, so, while at the beginning the router would function properly and had a fantastic wireless performance, sometimes last year, lots of users started complaining that the WRT3200ACM was having serious issues with the 5GHz radio (some have hinted that it may be a hardware problem and that the Marvell chip needed to be changed) and that the LED lights would become dim after a few months of normal use. Considering that the review I did a year and a half ago may not portray the current condition of the WRT3200ACM, I re-purchased it and retested the device to see if Linksys has managed to release a stable firmware which would at least solve the 5GHz radio instability.

Is there any way how I can determine to get a recent (2018 produced?) model (like looking for special serial numbers?), is it just luck not to run into problems or does the recent OpenWRT will cover all possible problems of the WRT3200ACM hardware changes?


The only hardware change known was a flash chip brand change in November 2017.
Models before this time had the old one, and after this have the new one. Both are supported in latest Openwrt.

The wireless chip being a hardware problem sounds rubbish to me. Sounds like the driver, which has been plagued with bugs and poor performance with certain clients since inception.


Thanks for clarification, I'm t'a little bit tired considering which router to buy and will go for the WRT3200ACM now. Thx a lot everybody for answering my questions!


In all fairness i can reproduce the problem with the dim LED's on my unit but it doesn't bother me much as the unit works fine.


WRT3200acm is running grate for me with latest driver. I have a lot of devices and all is good for me.


Hi @tapper
which one is the latest driver? 18.06.01? Development version?
I have one WRT3200acm from Jan 17 in storage, which i gave up on using LEDE, because of unstable and unusable WiFi. It was just no fun waiting for channel changes, rebooting it five times a day, when you are using it for work purposes.
When i look at https://github.com/kaloz/mwlwifi/issues it looks like WiFi still has issues esp. with Intel 8260 (2x2). And the one marvel developer has too much workload to fix it soon.

If anyone can confirm 5Ghz not changing channels and has no degrading throughput over time i would really like to give it another try, as the hardware is still great.


You can try on http://cdn.corifeus.com/openwrt, always latest wifi kaloz, never a problem, i am using newer wifi laptop intel 9260


Hi I am running Development version? SNAPSHOT r7894 I think It has same
driver as 18.06.1 as far as I know. Give 18.06.1 a go and then If you
have any issues then flash a snapshot. you can keep your config files
you will just have to install packages. Let us know how you go on.