12-20-2017 09:12 PM
I have a X1 Carbon 5th Gen with built-in AC 8265. It can not connect to the 5G band. My other devices, like iPhone and Chromecast work just fine in 5G band. X1 can find the SSID for 5G, but can not link to it.
I updated the driver to 220.127.116.11, also confirmed the setting for properties. Still it does not work. Is there any setting I missed? Please help.
802.11n Channel Width for 5.2GHz Auto (AP determines width)
Roaming Aggressiveness Medium
Throughput Booster Disabled
Transmit Power Highest
Wireless Mode 802.11a/b/g
HT Mode VHT Mode
Solved! Go to Solution.
12-21-2017 08:16 AM
The problem solved! I deleted the 8265 driver completely from device manager, then reinstalled the latest one. Now I can either connect to 2.4 GHZ and 5 GHZ.