Through the above manual, all of the C9200L equipments that had problems seemed to be okay temporarily. But for some reason, some devices again caused licensing problems. Both cases of the equipment that were normal and the equipment that took the above measures were changed to trial mode. When I logged in to software.cisco.com and checked the SA, the last communication was about 2 weeks ago for the device with the problem, but the evaluation version of the device was about 30 days away.
Question 1. If the trial mode expires, is there any problem with the network function? Question 2. Is there only OS upgrade to solve the above problem?