If OT issue is resolved, I would like to put update about my issue again

Most devices and
Laptop continue to have internet connection. But internet connection is lost on mobile and
tablet when I try to install or update app from
Google Play Store. After app starts downloading, internet connection is lost. But internet is working on other devices. I have observed this behavior almost 8-10 time on 2 mobile and 1 tablet. If I reboot
router, connection is resumed, else connection is automatically resumed on that device after sometime.