I think it very likely your choice of 'ad-hoc' is wrong. If you are connecting your 2nd laptop to the Router you should select 'infra-structure'. You should only use the Windows WiFi manager and uninstall the Dell WiFi Manager. Should then work!
OnePlus 5 review
See the work of famous artists playing with toys
iPad Pro 10.5in (2017) review
Comment faire une capture d’écran sur un Mac ?