I did more internal research and I found the timer you modified will be the real one, any attempt to finish authentication after 180 seconds will fail, but the one shown is hard-coded on FortiClient side.
Thank you for your feedback, but I confused about this subject. "but the one shown is hard-coded on FortiClient side." I've 5 location and there are different each locations. location A=50 s location B = 100s location C =....... there are not the same.
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