Hello GL.iNet team,
I am using a GL-E5800EU (Mudi 7) with a CMHK SIM card.
Client devices:
- Samsung Galaxy S25 Ultra, Hong Kong version
- iPhone 16 Pro Max, mainland China version
Before the issue, the Samsung could detect and connect to the router’s 6 GHz Wi-Fi normally. The iPhone could not detect 6 GHz and used 2.4 GHz instead.
The issue started after this sequence:
- The router was originally using 2.4 GHz + 6 GHz.
- The Samsung was connected to 6 GHz normally.
- I changed the high-band Wi-Fi from 6 GHz to 5 GHz through the normal GL.iNet web interface.
- Both phones could detect and connect to 5 GHz normally.
- I then changed the router from 5 GHz back to 6 GHz.
- From that moment, even the Samsung could no longer detect the 6 GHz SSID.
Before the issue, I did not modify the country code, driver files, LuCI wireless settings, or any low-level configuration. I only used the normal GL.iNet web interface.
Troubleshooting already completed:
- Changed the 6 GHz SSID
- Confirmed SSID broadcast is enabled
- Enabled PSC
- Tried automatic and manual channel selection
- Tested channel 5
- Tested 80 MHz and 160 MHz
- Used WPA3-SAE
- Used 11ax/be mode
- Disabled randomized BSSID
- Set transmit power to maximum
- Rebooted and fully powered off the router
- Factory reset the router
- Did not restore the old configuration
- Upgraded to the latest firmware
- Reconfigured everything from scratch
- Restarted the Samsung
- Tested close to the router
- Tested in airplane mode with Wi-Fi manually enabled
Samsung ADB shows:
wifi_last_country_code=HK
wifi_default_country_code=HK
mDriverCountryCode=HK
mTelephonyCountryCode=null
mOverrideCountryCode=null
The router country code appears to be DE.
Router SSH shows that the 6 GHz AP exists and is enabled:
iw dev:
Interface wlan2
ssid MUDI7TEST
type AP
channel 5 (5975 MHz)
txpower 30.00 dBm
hostapd_cli -i wlan2 status:
state=ENABLED
freq=5975
channel=5
ieee80211ax=1
ieee80211be=1
beacon_int=100
ssid[0]=MUDI7TEST
num_sta[0]=0
The logs also show:
START AP: mode SAP(1) 5975
Update beacon template
wlan2: IEEE 802.11 driver had channel switch
I did not see obvious errors such as AP-DISABLED, failed to set beacon, interface initialization failed, or no available channel.
Current situation:
- 2.4 GHz works
- 5 GHz works on both phones
- The 6 GHz interface exists
- hostapd reports ENABLED
- The Samsung previously connected to this router’s 6 GHz network
- The Samsung can no longer detect the 6 GHz SSID
- Factory reset and latest firmware did not fix it
Could you please confirm:
- Is this a known GL-E5800EU bug when switching between 5 GHz and 6 GHz?
- Could the DE regulatory domain cause hostapd to report ENABLED while clients cannot detect the SSID?
- Could the 6 GHz beacon, LPI/VLP mode, PSC information, power settings, or regulatory information be incorrect?
- Is there a test firmware or driver update available?
- What additional logs should I collect?
- If this cannot be fixed by software, should the device be replaced?
Thank you.
