Unable to download apps from google playstore via wifi
I faced this same problem a while ago. I could think of two things here. 
1. In my case, I had problem with my router. Other devices connected to the same router had no issues. I had to reset the router and everything worked fine after connecting the device back to it.
2. Then, you say you have 'Clear cache data from playstore app' but have you cleared the cache of all applications? try something like 'cc cleaner'. May be some old installation files/folders of the app you are trying to download, in this case chrome browser, might be causing this problem.