We were seeing the issues with Windows 10 laptops which had the most recently available Windows 10 updates installed, AC9560 driver showed version of 21.20.1.1 with date of 5/30/2019. Our Cisco AP was likewise running a very recent firmware version o...
We found that disabling 802.11ac on the Thinkpad laptops running 9560 resolved the issue... so this looks like a 802.11ac negotiation issue between laptops w/ 9560 chip and Cisco AP... these laptops don't have same issue with 802.11ac w/ other APs, o...