Posted: Sat Apr 03, 2021 10:55 Post subject: Roaming Issue - 2.4Ghz to 5Ghz
Hello,
Can anyone advise best settings to get my devices to jump back onto 5Ghz after they are on 2.4Ghz?
I would like them back on 5Ghz as fast as possible, becasue i get 70mbps Dl on 2.4Ghz and 350mbps on 5Ghz.
My scenario is as so:
Testing 4x phones. S10+, S10, Mate 20x 5G, S21 Ultra.
Behaviour is largely the same.
I am located 2m from the router. I reset the Wifi on the devices. They all connect directly to 5Ghz.
I move from the router into the garden, the 5Ghz gets to around -80 to -90 and the devices switch automatically to 2.4Ghz at around -70 -75.
This part seems to be great. As the 5Ghz gets unusable, they swtich to 2.4Ghz (which is usable)
My issue starts when i come back into the property. I sit the devices within 1-2m of the router, and they just remain on 2.4Ghz band. They dont switch back to 5Ghz.
I have left them there for around 1 hour. The devices do slowly return to 5Ghz, but after 5m, 15m, 30m, 45m.
Initially, i thought that this was related to the handset.
I put the router back to default factory software, and the issue is resolved. Devices switch back to 5Ghz band as soon as i get to within 5m of the router.
WRT1900ACSv2
Latest Stable Firmware: DD-WRT v3.0-r44048 (08/02/20)
I do not have any nearby neighbours on 2.4Ghz or 5Ghz band. I can see some AP's around 500m away at -90 if im in the garden.
Below are my settings for both bands.
Thanks in advance.
Wireless Physical Interface ath0 [5 GHz/802.11ac] - 88W8864 802.11ac
Physical Interface ath0 - SSID [XX] HWAddr [XX]
Wireless Mode = AP
Wireless Network Mode = AC/N-Mixed
Channel Width = VHT80 (80 MHz)
Wireless Channel = 36 - 5180 MHz
Extension Channel = UU (+6)
Allow Channel Overlapping = Disable
Wireless Network Name (SSID) = XX
Wireless SSID Broadcast = Enable
Regulatory Domain = UNITED_STATES
TX Power = 30 dBm
Antenna Gain = 0 dBi
U-APSD (Automatic Power Save) = Disable
Protection Mode = None
RTS Threshold = Disable
Short Preamble = Enable
Short GI = Enable
Single User Beamforming = Enable
AP Isolation = Disable
Beacon Interval = 100
DTIM Interval = 2
WMM Support = Enable
Radar Detection = Disable
ScanList = default
Sensitivity Range (ACK Timing) = 0 (Default: 500 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
Multicast To Unicast = Disable
Network Configuration = Bridged
Wireless Physical Interface ath1 [2.4 GHz TurboQAM] - 88W8864 802.11ac
Physical Interface ath1 - SSID [XX] HWAddr [XX]
Wireless Mode = AP
Wireless Network Mode = NG-Mixed
Channel Width = Full (20 MHz)
Wireless Channel = 1 - 2412 MHz
TurboQAM (QAM256) support = Disable
Wireless Network Name (SSID) = XX
Wireless SSID Broadcast = Enable
Regulatory Domain = UNITED_STATES
TX Power = 30 dBm
Antenna Gain = 0 dBi
U-APSD (Automatic Power Save) = Disable
Protection Mode = None
RTS Threshold = Disable
Short Preamble = Enable
Short GI = Enable
AP Isolation = Disable
Beacon Interval = 100
DTIM Interval = 2
WMM Support = Enable
ScanList = default
Sensitivity Range (ACK Timing) = 0 (Default: 500 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
Multicast To Unicast = Disable
Network Configuration = Bridged