@aykutfdn What exactly is the problem that you have ? A more detailed description of the issue would be helpful. Any error message you're receiving ? Who's your ISP ? Did they give you any...

@Julius_Sweden This setting is per network, so if he connects to other wireless network, the private address will be active unless he switch that off for that particular network.

@shahriyardx Restricting WhatsApp from accessing on mobiles might be a tricky thing - check this thread for details. It's about blocking TikTok, but the same could be valid for WhatsApp as well.

@Julius_Sweden Depending on the devices you're setting up, the issue might be similar to the one in this thread. If that's the case you can follow this FAQ to mitigate that.

@Wendyb If you forgot your router management password then you have to reset it to factory default - admin/admin. If you re-configure the main router after the resetting procedure the same way as...

@aykutfdn According to its specification: Setting the Internet connection: Scroll down on the same page: