I found the 196 release notes by changing the version in the dropdown on the version 190 notes. Here’s a link to the 196 page: https://www.cisco.com/c/en/us/td/docs/wireless/controller/release/notes/crn810mr11.html ..read more

Dear All, I have solved the problems by change the client MTU. 1.Check the mtu for current client, for windows , the comment is "netsh interface ipv4 show subinterfaces"; 2.Change the mtu to the right size, such as "netsh interface ipv4 set subinterface WLAN mtu=1300";   3.You could find the right size by the comment " ping -l 1272 -f 10.1.1.1" ; the 1272+28 is the right mtu size(because of IP header) ; 10.1.1.1 is the target IP address. the the problems was solved now.   ..read more

     - Factory reset was something I also intended to mention ,   M ..read more

Begin by executing the following commands on the AP: Display a summary of IP interfaces: show ip int brief Show the CAPWAP IP address: show capwap ip address View the WLC config details: show capwap client config On the switch side, confirm the interface status and Power over Ethernet (PoE) status. Once everything appears to be in order, attempt to perform a factory reset on the AP. If the AP remains stuck in this state, it may be necessary to contact TAC. Jagan Chowdam /**pls rate useful responses**/     ..read more

Thanks for the tip @marce1000, but error counters are at 0 (input&output).   ..read more

   - Check port (error)-counters too , for the  problematic APs   M ..read more

The Catalyst 9124AXE Access Point is certified for use with antenna gains up to 13 dBi (2.4 GHz and 5GHz).   AIR-ANT2513P4M-N= 13 13 Cisco Aironet Four-Port Dual-Band Polarization-Diverse Array Antenna AIR-ANT2513P4M-NS= 13 13 Cisco Aironet Four-Port Dual-Band Polarization-Diverse ArrayAntenna, Self-Identifying Ref: https://www.cisco.com/c/en/us/td/docs/wireless/access_point/9124ax/install-guide/b-hig-9124ax/hardware-features.html#supported_external_antennas The above listed antenna's have 4 x N-Female Bulkhead connectors and antenna don't come with low-l ..read more

Hi,  I configured the switch ports with a range command and well DHCP pool is also valid for all of them but still I tried to swap the switch ports, no luck.  Regards ..read more

   - It doesn't look like it at first glance (RMA) ; could you swap one of them with those on a  working port/connection (to exclude and or verify possible networking issues) ?  M ..read more

Upgrade to 8.5.182.11. If you still see the issue then enable client debugs for an affected client and use the debug analyzer (link below ..read more