ESP8266 Cannot connect to WRT3200ACM DD-WRT on WIFI 2.4ghz

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kaboom748
DD-WRT Novice


Joined: 12 Nov 2017
Posts: 1

PostPosted: Sun Nov 12, 2017 4:30    Post subject: ESP8266 Cannot connect to WRT3200ACM DD-WRT on WIFI 2.4ghz Reply with quote
I've found the solution for working together ESP8266 and WRT3200ACM:

1- Disable Wireless Physical Interface ath1 [2.4 Ghz TurboQAM] --> INCOMPATIBILITY

2- Use the ath2
--> AP
--> Mixed
--> Channel: Full 20mhz
--> Channel: 1 - 6 or 11

ENJOY !!!

Don't forget to set the ath0 to 5ghz only... Sometimes ESP8266 try to connect to

802.11n is a 2.4ghz and 5ghz protocol......


THE ath1 is BUGGED !!!!!!!!
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WENED
DD-WRT Guru


Joined: 30 May 2017
Posts: 564
Location: Rural Manitoba

PostPosted: Fri Jun 22, 2018 19:00    Post subject: esp8266 devices on WRT3200acm Reply with quote
Many thanks for the info regarding esp8266 and the 3200. I switched to ATH2 as suggested and am running flawlessly with multiple esp8266 devices which I use for temperature/humidity monitor and control. I also have a couple of cameras on the same link which seem to work fine.I suspect that if I wanted to get better range and monitor my link, it might be a problem but the devices are working well. I have upgraded to r36168 and the problem still exists.
WENED
DD-WRT Guru


Joined: 30 May 2017
Posts: 564
Location: Rural Manitoba

PostPosted: Mon Aug 06, 2018 21:31    Post subject: Re: esp8266 devices on WRT3200acm Reply with quote
WENED wrote:
Many thanks for the info regarding esp8266 and the 3200. I switched to ATH2 as suggested and am running flawlessly with multiple esp8266 devices which I use for temperature/humidity monitor and control. I also have a couple of cameras on the same link which seem to work fine.I suspect that if I wanted to get better range and monitor my link, it might be a problem but the devices are working well. I have upgraded to r36168 and the problem still exists.


Have done a lot more experimenting and found that the Sonoff devices (ESP8266) have no problem connecting and staying connected with wmm disabled. Unfortunately wmm disabled causes problems with most other devices. I resolved this by adding a virtual interface where I now have two 2.4 ssid's on my 3200's. One interface has wmm enabled and the the other disabled. All devices now connect and stay that way without problem. In one case I have three Sonoff devices and six ip cameras running on one 3200 flawlessly.

_________________
WRT3200acm Master WDS 5GHz 80Mhz CH 100 (+6) r47608
Ath1 2.4Ghz Disabled
99 Static Leases
ExpressVPN

WRT3200acm r47608 WDS Station 5Ghz
Ath1 AP N/G Mixed Channel 11 HT40

WRT1900Ac V1 5Ghz r47608 WDS Station
(Defective, no 2.4Ghz but 5Ghz works great)

WRT1900AC V1 5Ghz AC 80Mhz WDS Station r47608
2.4Ghz AP Ch1 HT20 Mixed

WRT1900ACS SPARE r47608

WRT1900AC V1 5Ghz AC 80Mhz WDS-AP r47608
2.4Ghz AP Ch1 HT20 Mixed

WRT54G DD-WRT v3.0-r37305 micro AP CH 6 Mixed - Not in use

3200 Master -> LAN -> 1900ACS -> WDS 5Ghz -> 1900 V1 (X2)
3200 Master -> WDS -> 3200 Slave & 1900V1
JR2502
DD-WRT Novice


Joined: 14 Apr 2017
Posts: 7

PostPosted: Sun Oct 28, 2018 6:10    Post subject: Re: ESP8266 Cannot connect to WRT3200ACM DD-WRT on WIFI 2.4g Reply with quote
Hi all.

kaboom748 wrote:
I've found the solution for working together ESP8266 and WRT3200ACM


And I wish I had found your post 10 hours ago..doh! Spent the entire day trying to figure out why DD-WRT would not connect my ESP8266 device but the same 3200ACM flashed with OpenWRT would work.

I have no experience with OpenWRT but as far as I could see, it was using the same Wifi radio in ath1. In fact, I could not find ath2 in OpenWRT - maybe they don't even support it.

This leads me to think there's nothing wrong with the radio itself but something about DD-WRT (v3.0-r37442) is not right.

Anyway, MUCH appreciate you sharing the solution.

Regards,
JR
Trainer
DD-WRT Novice


Joined: 14 Mar 2020
Posts: 13

PostPosted: Wed Mar 18, 2020 18:02    Post subject: Reply with quote
if i activate ath2 and deactivate ath1 i cant't find the AP with my device Sad

which FW Version do you use?

i have problems with my ESP connection via 2.4Ghz.
blkt
DD-WRT Guru


Joined: 20 Jan 2019
Posts: 3461

PostPosted: Wed Mar 18, 2020 20:47    Post subject: Reply with quote
OpenWrt will have the same problem as it's an unresolved issue with the open source wifi driver mwlwifi.

Disable ath2. Enable ath1 interface and set Advanced Settings WMM Support to disable.

Try a different ath1 Wireless Network Mode (examples: G-Only, BG-Mixed or NG-Mixed). Save. Reboot.

Check your syslog for spam auth request and deauthenticated due to inactivity. If they are gone, problem solved.

If not, try a different Wireless Network Mode then Save and Reboot. Also disable TKIP if it's checked in Wireless Security.
blkt
DD-WRT Guru


Joined: 20 Jan 2019
Posts: 3461

PostPosted: Fri Mar 20, 2020 23:21    Post subject: Reply with quote
I am under the impression 1900 and 3200 series are far more affected by this issue.

There are also lots of different ESP model variants, revisions and firmware.
carrots
DD-WRT Novice


Joined: 06 Mar 2020
Posts: 6

PostPosted: Sat Mar 28, 2020 21:03    Post subject: Reply with quote
blkt wrote:
I am under the impression 1900 and 3200 series are far more affected by this issue.

There are also lots of different ESP model variants, revisions and firmware.


ACM3200 for sure is.

It can be worked around to an extent by using a virtual interface on ATH2.
kernel-panic69
DD-WRT Guru


Joined: 08 May 2018
Posts: 11827
Location: Texas, USA

PostPosted: Sat Mar 28, 2020 21:34    Post subject: Reply with quote
The 1200s and 1900s are more identical hardware-wise. The 3200 and 32x, same. But let's just group the 1900s and 3200 together for fun, huh? Yeah.
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