Hi @huiwenshen,

Welcome to Trend Micro Home Users Community!

The VPN feature of the mobile app is called Web Guard and allows you to filter content when you are using your preferred browser by utilizing a local Virtual Private Network, or VPN, on your iOS/iPadOS device. However, it cannot block certain applications installed on your device.

For more information, you may check this link.

About the other concern, could you tell us the following information:

• What app have an issue with the mobile security? 
• When did this happen?
• iOS version:
• Trend Micro Mobile Security version: 

Looking forward to your response. 

VPN literally blocks every website I try to go thru.  A real pain. Always having to turn it off just to do basic stuff.  Like read the news!  

Hi @pvsincssf 

Normally Web Guard will only block suspicious websites. Can you give us some sample websites that are being block when you have Web Guard turned ON.

Also, can you share a screen shot of the block message from Mobile Security.

You may also try to add the specific website on the approved list to prevent Trend Micro from blocking it. You may refer to this link below: 

How to use Web Guard (Mobile Security for Android)