New Build - 01/11/2022 - r48081

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Jovan
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Joined: 06 Nov 2018
Posts: 122

PostPosted: Sat Jan 15, 2022 22:37    Post subject: Reply with quote
mcchary wrote:
msoengineer wrote:
Look at this picture and you'll see that upper cannot be a "proper" choice when using channels 12, 13, and 14.



I understand it seems that it generates some kind of conflict with the frequencies, I just changed to channel 11 and put upper. now i get 11+15 do you think its ok?


Nothing explodes with that setting, router still works supposedly at 300 M but verify in Status > Wireless tab, at the bottom of the page at what RX and TX rates your devices are connected. With a setting like that I get no more than 150 M as if HT40 is ignored. So is of no use to set it that way if devices can't understand what the router is trying to do.
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msoengineer
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PostPosted: Sun Jan 16, 2022 2:34    Post subject: Reply with quote
Jovan wrote:
With a setting like that I get no more than 150 M as if HT40 is ignored. So is of no use to set it that way if devices can't understand what the router is trying to do.


Exactly, no commercial client will ever see channel 15 and use it, only another dd-wrt router running in super channel mode will see channel 15; or devices you have hacked to be able to see channels above 13 (14 in Japan), and you will have had to pay to unlock these channels...

If you want to set an upper channel, and you also live in JAPAN, you can try 11+upper and it should use 14 as the extension channel. Otherwise for most countries 13 is the highest channel you can use on a client and you would need to use 8+upper to make this work. Again, the clients will be the limiting factor... AND then there's the whole fact that only intel clients in laptops will allow HT40 to be used. All iOS and Android stuff will revert to HT20 mode if it detects ANY slight neighbor signal. I know of no way to force HT40 mode on Android nor on iOS devices....

HT40 in 2.4ghz is mostly a wasted feature thanks to the clients not allowing it.

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strange
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Joined: 18 Jun 2006
Posts: 229

PostPosted: Sun Jan 16, 2022 2:55    Post subject: Reply with quote
Netgear XR500
Firmware Version: DD-WRT v3.0-r48081 std (01/11/22)
Kernel Version: Linux 4.9.296 #663 SMP Tue Jan 11 02:58:11 +07 2022 armv7l
Current Time: Sat, 15 Jan 2022 18:48:22
Uptime12 min
Reset: No
GUI install over 48075
No issues

Does SFE work on this model? Every time I enable it, it reverts back to disable after I apply.

A big thanks to BS and all the gurus for everything that you do.

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Dodge DeBoulet
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Joined: 20 Jan 2007
Posts: 61

PostPosted: Sun Jan 16, 2022 3:27    Post subject: Reply with quote
strange wrote:
Netgear XR500
Firmware Version: DD-WRT v3.0-r48081 std (01/11/22)
Kernel Version: Linux 4.9.296 #663 SMP Tue Jan 11 02:58:11 +07 2022 armv7l
Current Time: Sat, 15 Jan 2022 18:48:22
Uptime12 min
Reset: No
GUI install over 48075
No issues

Does SFE work on this model? Every time I enable it, it reverts back to disable after I apply.

A big thanks to BS and all the gurus for everything that you do.


It's enabled on my R9000, and when I tried to disable it the 5GHz radio would no longer accept a connection from my primary workstation (I could still connect to the 2.4GHz radio, though). So I re-enabled it with the intention of doing some more testing later.

I am using the DD-WRT radio firmware on the 5GHz radio too, and I've been informed that I really shouldn't.
mwbuss8
DD-WRT Guru


Joined: 23 Feb 2015
Posts: 750

PostPosted: Sun Jan 16, 2022 5:46    Post subject: Reply with quote
strange wrote:
Netgear XR500
Firmware Version: DD-WRT v3.0-r48081 std (01/11/22)
Kernel Version: Linux 4.9.296 #663 SMP Tue Jan 11 02:58:11 +07 2022 armv7l
Current Time: Sat, 15 Jan 2022 18:48:22
Uptime12 min
Reset: No
GUI install over 48075
No issues

Does SFE work on this model? Every time I enable it, it reverts back to disable after I apply.

A big thanks to BS and all the gurus for everything that you do.


It is enabled on my XR500.

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egc
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Joined: 18 Mar 2014
Posts: 12837
Location: Netherlands

PostPosted: Sun Jan 16, 2022 8:04    Post subject: Reply with quote
SFE is not compatible with things like Virtual access points aka guest networks it will disable if you have one.
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Routers:Netgear R7000, R6400v1, R6400v2, EA6900 (XvortexCFE), E2000, E1200v1, WRT54GS v1.
Install guide R6400v2, R6700v3,XR300:https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=316399
Install guide R7800/XR500: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=320614
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ho1Aetoo
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Joined: 19 Feb 2019
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Location: Germany

PostPosted: Sun Jan 16, 2022 8:07    Post subject: Reply with quote
msoengineer wrote:

Exactly, no commercial client will ever see channel 15 and use it, only another dd-wrt router running in super channel mode will see channel 15; or devices you have hacked to be able to see channels above 13 (14 in Japan), and you will have had to pay to unlock these channels...

If you want to set an upper channel, and you also live in JAPAN, you can try 11+upper and it should use 14 as the extension channel. Otherwise for most countries 13 is the highest channel you can use on a client and you would need to use 8+upper to make this work. Again, the clients will be the limiting factor... AND then there's the whole fact that only intel clients in laptops will allow HT40 to be used. All iOS and Android stuff will revert to HT20 mode if it detects ANY slight neighbor signal. I know of no way to force HT40 mode on Android nor on iOS devices....

HT40 in 2.4ghz is mostly a wasted feature thanks to the clients not allowing it.


Sorry but this is not quite correct
Channel 14 is allowed in Japan only as 20Mhz and as IEEE 802.11b
Therefore the channels 10/11/12/13 can never be HT40+Upper in Japan
Channel 9 is the highest channel that supports HT40+Upper and channel 14 is basically not a 40Mhz channel.

for the primary channel mentioned, "upper" is only possible as an extension channel if you have activated Superchannel and apart from the fact that in most cases you make yourself liable to prosecution by using it, the channels are not supported by any client anyway. (with the exception of dd-wrt with activated Superchannel)

Code:
root@DD-WRT:~# iw reg get
global
country JP: DFS-UNSET
   (2402 - 2482 @ 40), (N/A, 20), (N/A)
   (2474 - 2494 @ 20), (N/A, 20), (N/A), NO-OFDM



https://en.wikipedia.org/wiki/List_of_WLAN_channels#2.4_GHz_%28802.11b%2Fg%2Fn%2Fax%29


https://git.kernel.org/pub/scm/linux/kernel/git/sforshee/wireless-regdb.git/tree/db.txt

Code:
   # Channel 14. Only JP enables this and for 802.11b only
   (2474 - 2494 @ 20), (20), NO-IR, NO-OFDM


for the sake of completeness
if we assume 13 allowed channels

valid HT40 channels are:

1+Upper ( 1+5 )
2+Upper ( 2+6 )
3+Upper ( 3+7 )
4+Upper ( 4+8 )
5+Upper ( 5+9 )
5+Lower ( 5+1 )
6+Upper ( 6+10 )
6+Lower ( 6+2 )
7+Upper ( 7+11 )
7+Lower ( 7+3 )
8+Upper ( 8+12 )
8+Lower ( 8+4 )
9+Upper ( 9+13 )
9+Lower ( 9+5 )
10+Lower ( 10+6 )
11+Lower ( 11+7 )
12+Lower ( 12+8 )
13+Lower ( 13+9 )

best regards
strange
DD-WRT User


Joined: 18 Jun 2006
Posts: 229

PostPosted: Sun Jan 16, 2022 11:03    Post subject: Reply with quote
egc wrote:
SFE is not compatible with things like Virtual access points aka guest networks it will disable if you have one.


Ah, thank you.

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Dodge DeBoulet
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Joined: 20 Jan 2007
Posts: 61

PostPosted: Sun Jan 16, 2022 13:06    Post subject: Reply with quote
egc wrote:
SFE is not compatible with things like Virtual access points aka guest networks it will disable if you have one.


I have a VAP on my 2.4GHz radio and, as mentioned above, SFE shows as enabled in Setup. Seems to be working fine ...?
ho1Aetoo
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Joined: 19 Feb 2019
Posts: 2927
Location: Germany

PostPosted: Sun Jan 16, 2022 13:14    Post subject: Reply with quote
concerns only unbridged VAP's
unlucky1
DD-WRT User


Joined: 09 Mar 2013
Posts: 75

PostPosted: Sun Jan 16, 2022 14:14    Post subject: Reply with quote
See signature for devices/firmware.

I have two R7800s.

One is AP only and has been running fine for over a year.

Second one I just received (bought used on Ebay) and am using as a test gateway for now. Only a basic setup using the recommended settings from egc's signature.

The first one shows the Switch Config page in the GUI. The second one does not. Both using same r48081 firmware. First one was an update, second one was initial conversion from stock.

Did I miss the magic setting that displays the Switch Config page or just hit and miss with install/upgrades?

Or, after perusing other posts, do I care if it's there or not as it doesn't seem to be completely functional and could be problematic? Especially since I specifically want to play with adding a second WAN VLAN on it.

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Buffalo WZR-600DHP (Gateway, NAS, DDNS, DHCP) - r54682
Netgear R7800 (Gateway, DDNS, DHCP, DNSMASQ w/Pi Hole) - r54682
Netgear R7800 (AP) - r54682
egc
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Joined: 18 Mar 2014
Posts: 12837
Location: Netherlands

PostPosted: Sun Jan 16, 2022 14:19    Post subject: Reply with quote
It should be functional in build 48128, you probably need to reset to defaults after upgrading (from CLI: nvram erase && reboot) and put settings in manually
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Routers:Netgear R7000, R6400v1, R6400v2, EA6900 (XvortexCFE), E2000, E1200v1, WRT54GS v1.
Install guide R6400v2, R6700v3,XR300:https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=316399
Install guide R7800/XR500: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=320614
Forum Guide Lines (important read):https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324087
ho1Aetoo
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Joined: 19 Feb 2019
Posts: 2927
Location: Germany

PostPosted: Sun Jan 16, 2022 14:21    Post subject: Reply with quote
This is a bug after a factory reset the switch config page disappeared and it appears again only after the next firmware update.

And possibly tolerable, since the switch config page did not work properly in older builds anyway (e.g. made the WAN port unusable).

maybe this is fixed in the next build there was a commit the other day

https://svn.dd-wrt.com/changeset/48123
unlucky1
DD-WRT User


Joined: 09 Mar 2013
Posts: 75

PostPosted: Sun Jan 16, 2022 14:29    Post subject: Reply with quote
egc wrote:
It should be functional in build 48128, you probably need to reset to defaults after upgrading (from CLI: nvram erase && reboot) and put settings in manually


Ok.

ho1Aetoo wrote:
This is a bug after a factory reset the switch config page disappeared and it appears again only after the next firmware update.

And possibly tolerable, since the switch config page did not work properly in older builds anyway (e.g. made the WAN port unusable).

maybe this is fixed in the next build there was a commit the other day

https://svn.dd-wrt.com/changeset/48123


I think I'll take that advice.

_________________
TP-Link TL-WDR4300 v1 (NAS) - r54682
Buffalo WZR-600DHP (Gateway, NAS, DDNS, DHCP) - r54682
Netgear R7800 (Gateway, DDNS, DHCP, DNSMASQ w/Pi Hole) - r54682
Netgear R7800 (AP) - r54682
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