Yeah, you can find it from session.log file.
File location by default, it can be found in %ProgramData%\QlikTech\QlikviewServer.
as mentioned earlier you can find it from User Session Log file
if you have sever access go --> windows - start (win key +R) then navigate to below location
Note: if you wanted to display this client IP address info. at dashboard level try to configure below document analyzer for qlik sense (try to search app from qlik branch or rob blog post)
PS: i've configured document analyzer for qlik view and able to display that user IP address.
I've only qlikview server. i'm very sure the same field (Client Address) available in your qlik sense session log file (try to search above mention path kind)