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This article outlines how to disable Apple settings that disrupt DNS traffic from resolving correctly when using the Roaming Client.  

Safari and iOS both have options that hide ip addresses which can break DNS resolution with DNS proxy network extension like the DNSFilter Roaming Client. 

When using both Apple's solution and the Roaming Client on the same device some websites may not load or only partially load.

Single-device resolution

Disable one or more of the ip address hiding capabilities across Safari and iOS. Depending on the current device configuration, any or all may apply.

iCloud Private Relay

Available if subscribed to iCloud+

1. Go to Settings > [your name] > iCloud > Private Relay
2. Select/move the Private Relay slider to off/white
   This will present a popup
3. Select Turn Off Private Relay

Review the Apple iPhone User Guide and iPad User Guide for more information.

Limit IP Address Tracking

1. Go to Settings > Wi-Fi > Network Settings
2. Select/move the Limit IP Address Tracking slider to off/white
3. Repeat for each network used

Hide IP Address

1. Go to Settings > Safari
2. Select Hide IP Address
3. Select Off

MDM resolution

Many MDM softwares provide steps to disable or restrict these Apple settings. Consult your provider's support documentation for details. Here is an example troubleshooting guide from Jamf to restrict the iCloud Private Relay on both iOS and macOS devices.