Can´t download certain apps from play store with wifi

[Pepilolandia]

Hi there, since a few days ago I can´t download certain apps from the play store while being connected to my home Wifi (I can download them using 3G but I don´t have a big data plan).
For example I can download Facebook app but Instagram gets stuck in downloading forever.
This issue happens for any phone connected to my home network, tried:

Nexus 5x - Android 7.0 and 6.0.1
Nexus 4 - Android 5.1
Moto X Style - Android 6.0.1

Also tried:
Clearing cache and data of every related app (google play store, play services, downloading manager).
Factory reset
Restarting router
Reset to defaults the router
Disabling IPV6
Enabling IPV6
Using Guest session in the router
Changing date and time of the phone, router, etc

My router is a DLink DSL-2750B and my ISP is Wind Infostrada Italy

Thank in advance!

 

[tony bag o donuts]

Does your internet provider limit you with data by any chance? It's strange that it would happen. It happens to me, but with my ISP I have one network for computers and TV streaming and another for mobile devices.
Have you tried any other wifi network?
Very very dumb question but is wifi turned on in your device settings?
Is there a firewall blocking the device?

Sorry, welcome to the forums!

 

[Pepilolandia]

Hi Tony, thanks for your reply,
No, my ISP doesn´t limit data that I know of.
I´ve tried with other Wifi networks and they seem to work fine.
Wifi is turned on and there´s no wifi blocking the device.

The oddest thing is that the internet works fine and I can download some apps from the play store, but some of them don´t seem to work.
I can download/update google maps, but google keep or google play books get stuck.