Joined: 29 Mar 2010 Posts: 60 Location: San Jose, CA
Posted: Wed Jul 04, 2018 3:18 Post subject: Some Devices not seeing the 5GHz Channel
I was running Brainslayer's r34080 since it came out in 12/1, recently I upgraded to Kong's r36174 on my EA8500.
The following discussion applies to both versions of DD-WRT on my EA8500.
I noticed that the 5GHz channel doesn't show up on my Iphone 5s or my AE6000 adapter in my PC or the AE6000 adapter in my laptop. My iPad Air 2 does see and can connect to the EA8500 5GHz channel.
I can see/connect to my ISP's 5Ghz channel from any of my devices, iPhone 5s, iPad Air 2, AE6000 on my laptop or PC.
Any ideas as to why I can't see the 5GHz channel?
Settings on the 8500 are:
ath1(5GHz)
Mode AC/N-mixed
channel width vht80
channel 149
extension channel UL (+6)
ssid xxyyzz50
Advanced setting:power 26
sensitivity 0 (default 2000)
5 GHz Wi-Fi Radio Configuration
Wi-Fi Interface
Wi-Fi Interface Default: Enabled
Wi-Fi Channel Default: Auto
Current Wi-Fi Channel 36
Channel Bandwidth Default: 80 MHz
Advanced Settings
Regulatory Domain
TX Power
26 dBm
Antenna Gain 0 dBi
Noise ImmunityEnable Disable
Protection Mode
RTS ThresholdEnable Disable
Short PreambleEnable Disable
Short GIEnable Disable
Single User BeamformingEnable Disable
Multi User BeamformingEnable Disable
TX Antenna Chains
RX Antenna Chains
AP IsolationEnable Disable
Beacon Interval 100
DTIM Interval 2
Airtime FairnessEnable Disable
Frame Compression
WMM SupportEnable Disable
Radar DetectionEnable Disable
ScanList default
Sensitivity Range (ACK Timing) 0
(Default: 2000 meters)
Max Associated Clients 256
(Default: 256 Clients)Drop Clients with Low Signal
Minimum Signal for authenticate
-128
Minimum Signal for connection
-128
Poll Time for signal lookup
10
Amount of allowed low signals
3
Network ConfigurationUnbridged Bridged
The settings for the ISP router are:
The ISP router is a Pace PLZ 5268AC
5 GHz Wi-Fi Radio Configuration
Wi-Fi Interface Default: Enabled
Wi-Fi Interface Default: Enabled
Wi-Fi Channel Default: Auto
Current Wi-Fi Channel 36
Channel Bandwidth Default: 80 MHz
Check Wi-Fi Channel Availability User Network
Network Name (SSID) xxxxxx50
Default: ATT7hBg5Ns
SSID Broadcast Default: Enabled
Wi-Fi Security Default: Enabled
Authentication Type Default: WPA2-PSK (AES)
Wi-Fi Password Use custom Wi-Fi Network Password
EA8500 5GHz settings I use and have for couple years with many dd-wrt builds.
Currently on BS-r36247. It also has a guest VAP on 5GHz. Have never had a problem.
Joined: 29 Mar 2010 Posts: 60 Location: San Jose, CA
Posted: Fri Jul 06, 2018 1:27 Post subject:
Using the settings suggested by mrjcd, 161 ll-6, the 5GHz radio seemed to turn off. None of my devices could see the 5GHz interface.
I changed the ll-6 to uu+6 resulting in no improvement.
Changing to channel 36 uu+6:
On r36246std all devices could see and connect to the 5GHz interface. Using Wi-Fi Sweetspots I saw a bandwidth of 500 to 650 Mbps.
On r36175M, all devices could see and connect to the 5GHz interface. Using Wi-Fi Sweetspots I saw a bandwidth of 600 to 900 Mbps.
The bandwidth difference doesn't matter much as the ISP router's connection to the Internet is a bottleneck at 50Mbps.
So two questions come to mind:
Is the DD-WRT software broken on the upper channels of the 5GHz radio?
What difference between the IPS router and the 8500(DD-WRT) would cause the iphones to not connect to the 8500's 5GHz interface?
Joined: 03 Jan 2010 Posts: 7568 Location: YWG, Canada
Posted: Fri Jul 06, 2018 1:35 Post subject:
no they work fine, ur device probably doesnt support those channels (bought from a different region?) or u had something else invalid set, make sure security is set to wpa2 personal aes or wpa2 personal mixed aes
reg domain is important too, must set one that supports selected channel, and both radios must use the same reg domain at the same time, or it breaks in all sorts of ways _________________ LATEST FIRMWARE(S)
BrainSlayer wrote:
we just do it since we do not like any restrictions enforced by stupid cocaine snorting managers
Joined: 29 Mar 2010 Posts: 60 Location: San Jose, CA
Posted: Fri Jul 06, 2018 6:02 Post subject: Some Devices not seeing the 5GHz Channel
I reset the settings to default and rebooted the router. I followed the recommendations from the Settings Guide.The 5GHz set to, 161 with a default ll-6, that didn't run the 5GHz interface. I changed that to 161 uu+6, that's not running either.
This router was purchased in San Jose California, it's the model with the serial connector pins in the motherboard. I remember the 5GHz interface running at 149 but I don't remember what the extension setting was, but it's not working now.
Any ideas what settings maybe causing the upper channels to not work?
Joined: 03 Jan 2010 Posts: 7568 Location: YWG, Canada
Posted: Fri Jul 06, 2018 6:07 Post subject:
set it to 161+LL again, then issue the "dmesg" command, copy/paste the entire output into a .txt file and upload it to the forum or whatever cloud service of choice _________________ LATEST FIRMWARE(S)
BrainSlayer wrote:
we just do it since we do not like any restrictions enforced by stupid cocaine snorting managers
Joined: 03 Jan 2010 Posts: 7568 Location: YWG, Canada
Posted: Fri Jul 06, 2018 7:00 Post subject:
the output is normal, can u post a screenshot of the 5ghz settings (that dont work) with advanced settings box checked? _________________ LATEST FIRMWARE(S)
BrainSlayer wrote:
we just do it since we do not like any restrictions enforced by stupid cocaine snorting managers
Joined: 29 Mar 2010 Posts: 60 Location: San Jose, CA
Posted: Fri Jul 06, 2018 14:37 Post subject:
I attached a screenshot of the ath1 status page. At the bottom the 2 devices connected to ath0 don't see ath1 and can't connect. The device connected to ath1 I connected to ath0 then back to ath1 then took the screenshot.
