Admob ads not showing through wifi but working on mobile data.Please help

Hi guys,
I need a solution, i have terrible problem i dont know where to post it,

Am a android game developer, i implement admob ads in my games, when testing ads are not showing through my home wifi but when i switch to my mobile data ads are working good.

And one more thing playstore apps downloading very slow through wifi, but when i on mobile 4g data the speed is really good.

I dont know where is the problem. But on other device through same wifi ads are working good.
Only for my device is problematic.

My device is Lenovo a6600 plus, 6.0 android version.

Sounds like it’s your network. Have you tried going to a local Starbucks and seeing if your WiFi is the problem? If your WiFi is super slow the Ads may be timing out idk off the top of my head so I may be very wrong.

I solved it.
The problem is LTE, If i put my phone on Airplane Mode the wifi works good, or uncheck LTE recomended option in mobile network. If LTE on the wifi is not working.

If you guys any one have problem , Try this. Have a good day.