Could not find Malawi listed on the above link which @Scott Fella has shared. so this is probably not yet approved.
Also came across this bug https://bst.cisco.com/bugsearch/bug/CSCwk46722?rfs=qvlogin
Adding Support for Malawi Country Code on the 98...
6Ghz was introduced for few countries including Mexico only from 17.14.x. Please check release notes of 17.14.x. We had similar issue when using 9166D1-ROW and were asked by TAC to upgrade to 17.14.x.
https://www.cisco.com/c/en/us/td/docs/wireless/c...
@axom789 another suggestion would be to block/disable the test laptop's MAC address on your Aruba WLC. Then enable Radioactive trace on Cisco 9800 for the test laptop's MAC address and analyze further.
We have few 1562I/Es running on 9800-L with 17.9.3 version and as per Release notes for 17.9.x, 1560s are supported.
https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/17-9/release-notes/rn-17-9-9800.html#Cisco_Concept.dita_7b3aedb7-a434-...
@ishara if you are asking whether it is possible in High Availability mode (3 WLCs as Active-Standby1-Standby2;) then answer is No. Please choose @marce1000 's N+1 model in this case. Another suggestion would be to continue your existing 2 units as H...