[SOLVED] NO VAP on 5ghz

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msoengineer
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Joined: 21 Jan 2017
Posts: 1141
Location: Illinois Moderator

PostPosted: Mon Dec 09, 2019 19:08    Post subject: [SOLVED] NO VAP on 5ghz Reply with quote
Might someone else see if they can get a 5ghz virtual Access Point to work on their router using any recent November 2019, December 2019, or preferably 12-06-2019-r41664 specifically?

The symptoms I get when creating a VAP is that the 5ghz radio will "die." My WiFi status will show the following:

Chipset QCA9984 802.11ac
RadioRadio is- On
Mode- AP
Network- AC/N-Mixed
SSID- XXXXXXX
Channel- Unknown
Busy Time- 0 ms
Active Time- 0 ms
TX Power- 30 dBm
Rate- Auto
ACK Timing- 21µs (3150m)
Encryption - Interface ath0Enabled, WPA2-PSK
Connected- Clients 0

Neither the regular 5ghz SSID nor 5ghzVap will show up on any wifi scanning software.

I need some more data points from other users.

Router model:
Build:
Then copy from the Status>wireless Tab:

Chipset QCA9984 802.11ac
RadioRadio is On
ModeAP
NetworkAC/N-Mixed
SSID
Channel149 + 155 (5745 MHz VHT80)

Thanks in Advance!

_________________
TIPS/TRICKS: Best QCA Wifi Settings | QCA WIFI WIKI | Latency tricks | QoS Port priority | NEVER USE MU-MIMO |
Why to NOT use MU-MIMO | Max Wifi Pwr by Country | Linux Wifi Pwr | AC MCS & AX MCS | QCA 5Ghz chnls to use | WIFI Freq WIKI | TFTP R7800 | Don't buy AX | IPERF3 How-To

[R9000]43874 nightly (Main Router)
[EA8500]43192 nightly (2xOffsite)
[R7800]taking a nap
[WDR3600]BS 42567 (Offsite)
[A7v5]BS 43038 (Offsite+spare here napping)


Last edited by msoengineer on Tue Dec 10, 2019 6:20; edited 1 time in total
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msoengineer
DD-WRT Guru


Joined: 21 Jan 2017
Posts: 1141
Location: Illinois Moderator

PostPosted: Tue Dec 10, 2019 6:18    Post subject: Reply with quote
Back in 2018 the writers of the ATH10k firmware decided that if you run multiple VAP's then you should use a beacon >=100... setting it lower will stop the radio from broadcasting. Problem is solved thanks to BS and he will make a commit to not allow you to enter <100 when using a VAP.

https://patchwork.kernel.org/patch/10603777/

Thank you BS!

QCA wireless wiki was updated to reflect this issue.

_________________
TIPS/TRICKS: Best QCA Wifi Settings | QCA WIFI WIKI | Latency tricks | QoS Port priority | NEVER USE MU-MIMO |
Why to NOT use MU-MIMO | Max Wifi Pwr by Country | Linux Wifi Pwr | AC MCS & AX MCS | QCA 5Ghz chnls to use | WIFI Freq WIKI | TFTP R7800 | Don't buy AX | IPERF3 How-To

[R9000]43874 nightly (Main Router)
[EA8500]43192 nightly (2xOffsite)
[R7800]taking a nap
[WDR3600]BS 42567 (Offsite)
[A7v5]BS 43038 (Offsite+spare here napping)


Last edited by msoengineer on Tue Dec 10, 2019 16:10; edited 1 time in total
egc
DD-WRT Guru


Joined: 18 Mar 2014
Posts: 5935
Location: Netherlands

PostPosted: Tue Dec 10, 2019 10:28    Post subject: Reply with quote
If I am not mistaken the beacon interval is reset to 100 if it is set lower, I now use your recommendation and set it 67.

So maybe we should change that to 101?

_________________
Routers:Netgear R7800, Netgear R6400v1, Netgear R6400v2, Linksys EA6900 (XvortexCFE), Linksys E2000 (converted WRT320N), WRT54GS v1.
OpenVPN Policy Based Routing guide: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=321686
Install guide R6400v2:http://forum.dd-wrt.com/phpBB2/viewtopic.php?t=316399
OpenVPN Server Setup:https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=318795
Install guide R7800: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=320614
Wireguard server setup guide:https://forum.dd-wrt.com/phpBB2/viewtopic.php?p=1183135
Wireguard client setup guide:https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324624
Wireguard Advanced setup guide:https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324787
Forum Guide Lines (important read):https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324087
blkt
DD-WRT Guru


Joined: 20 Jan 2019
Posts: 1309

PostPosted: Tue Dec 10, 2019 11:10    Post subject: Reply with quote
egc wrote:
So maybe we should change that to 101?

https://svn.dd-wrt.com/changeset/41690

100 bacons it is. mmm... bacon.
msoengineer
DD-WRT Guru


Joined: 21 Jan 2017
Posts: 1141
Location: Illinois Moderator

PostPosted: Tue Dec 10, 2019 14:00    Post subject: Reply with quote
I think values less than 100 work fine, so long as you don't use/create a VAP. If you plan to run a VAP you need to have it at 100 as a minimum.

FWIW, I am using 101 since that's a prime number.

Again, set which ever radio you want to be "primary," first to be seen, with the lower beacon, bacon, interval.

Bacon makes everything better!

_________________
TIPS/TRICKS: Best QCA Wifi Settings | QCA WIFI WIKI | Latency tricks | QoS Port priority | NEVER USE MU-MIMO |
Why to NOT use MU-MIMO | Max Wifi Pwr by Country | Linux Wifi Pwr | AC MCS & AX MCS | QCA 5Ghz chnls to use | WIFI Freq WIKI | TFTP R7800 | Don't buy AX | IPERF3 How-To

[R9000]43874 nightly (Main Router)
[EA8500]43192 nightly (2xOffsite)
[R7800]taking a nap
[WDR3600]BS 42567 (Offsite)
[A7v5]BS 43038 (Offsite+spare here napping)
blkt
DD-WRT Guru


Joined: 20 Jan 2019
Posts: 1309

PostPosted: Wed Dec 11, 2019 12:08    Post subject: Reply with quote
msoengineer wrote:
Bacon makes everything better!

https://svn.dd-wrt.com/changeset/41693

More bacon.
msoengineer
DD-WRT Guru


Joined: 21 Jan 2017
Posts: 1141
Location: Illinois Moderator

PostPosted: Wed Dec 11, 2019 15:10    Post subject: Reply with quote
blkt wrote:
msoengineer wrote:
Bacon makes everything better!

https://svn.dd-wrt.com/changeset/41693

More bacon.


That was a fat finger correction to overcome the 41692 alpha build bricking the R7800 and R9000...

_________________
TIPS/TRICKS: Best QCA Wifi Settings | QCA WIFI WIKI | Latency tricks | QoS Port priority | NEVER USE MU-MIMO |
Why to NOT use MU-MIMO | Max Wifi Pwr by Country | Linux Wifi Pwr | AC MCS & AX MCS | QCA 5Ghz chnls to use | WIFI Freq WIKI | TFTP R7800 | Don't buy AX | IPERF3 How-To

[R9000]43874 nightly (Main Router)
[EA8500]43192 nightly (2xOffsite)
[R7800]taking a nap
[WDR3600]BS 42567 (Offsite)
[A7v5]BS 43038 (Offsite+spare here napping)
kernel-panic69
DD-WRT Guru


Joined: 08 May 2018
Posts: 7011
Location: Texas, USA

PostPosted: Wed Dec 11, 2019 15:53    Post subject: Reply with quote
^^^^^^ I wasn't gonna say it Mr. Green Cool
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egc
DD-WRT Guru


Joined: 18 Mar 2014
Posts: 5935
Location: Netherlands

PostPosted: Wed Dec 11, 2019 16:12    Post subject: Reply with quote
Any decent programming language would have known you meant an integer and not a string Wink
_________________
Routers:Netgear R7800, Netgear R6400v1, Netgear R6400v2, Linksys EA6900 (XvortexCFE), Linksys E2000 (converted WRT320N), WRT54GS v1.
OpenVPN Policy Based Routing guide: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=321686
Install guide R6400v2:http://forum.dd-wrt.com/phpBB2/viewtopic.php?t=316399
OpenVPN Server Setup:https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=318795
Install guide R7800: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=320614
Wireguard server setup guide:https://forum.dd-wrt.com/phpBB2/viewtopic.php?p=1183135
Wireguard client setup guide:https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324624
Wireguard Advanced setup guide:https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324787
Forum Guide Lines (important read):https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324087
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