How to Enable Network Link Conditioner on iOS 27
Enable Network Link Conditioner in iPhone Developer settings to test your app under slow or unreliable network conditions.
Step 1
Open Settings from the Home Screen
Before you begin: An unlocked iPhone running iOS 27, paired with Xcode, with Developer Mode enabled and Developer visible in Settings.
Find and tap the Settings app on your Home Screen. Its icon looks like a gray gear.
Step 2
Open Developer in Settings
In Settings, scroll down and tap Developer.
Step 3
Open Network Link Conditioner
Scroll to Network Link Conditioner.
Step 4
Enable the network simulation
Select a suitable profile, then turn Enable on to apply its simulated network conditions. Run your app and check its loading, retry, and error behavior.
Reference
By ProgramGuru
Published: 2026-10-14
Updated: 2026-10-14
Instructions reviewed against Apple documentation on 2026-10-14.