iPhone 'Cannot Connect to App Store' — How to Fix It

What it means

'Cannot connect to App Store' on iPhone means the App Store reached the network but couldn't talk to Apple's servers properly.
Most of the time the phone has internet — Safari and Mail work — but the App Store alone refuses to load.
The usual culprits are a stale App Store session, a wrong system clock, a DNS or VPN problem on your network, or — occasionally — Apple's status page showing an actual outage.
The fix is rarely complicated.

Affected Models

All iPhone models
Also affects iPad, iPod Touch, Apple TV, and Mac App Store
Common right after a long stretch of not opening the App Store, or after switching networks

Common Causes

Stale App Store session that needs a fresh sign-in
iPhone's date and time are wrong
Apple's servers having an outage (rare)
VPN or custom DNS on the device or router blocking Apple domains
Wi-Fi connection has internet but is dropping the App Store's secure handshake
Apple ID needs to re-accept terms and conditions
Restrictions / Screen Time block on installing apps
Country/region mismatch on the Apple ID

How to Fix It

Sign out of the App Store, then sign back in.

Open Settings > [your name] > Media & Purchases > Sign Out.
Wait a few seconds, then tap Sign In and enter your Apple ID password.
This refreshes the App Store's token, which is what fixes most cases of 'Cannot connect to App Store'.
Toggle airplane mode, then restart the iPhone.

Swipe down Control Centre, turn airplane mode on for 10 seconds, off.
If the App Store still won't connect, restart the iPhone — press and hold either volume button and the side button until the power slider appears, drag it, wait, then hold the side button to turn it back on.
A proper restart clears stuck network state.
Check Apple's system status.

On another device, open apple.com/support/systemstatus.
If the App Store row is green, the servers are fine — keep troubleshooting.
If it's amber or red, there's a known outage; just wait for it to clear, usually within an hour.
Fix the date and time.

Settings > General > Date & Time > Set Automatically on.
An incorrect clock breaks the secure handshake with Apple's servers and the App Store quietly refuses to connect.
This is a common, easily-missed cause.
Switch network — Wi-Fi to cellular, or vice versa.

If you're on Wi-Fi, turn it off and try over cellular data (Settings > Cellular > Cellular Data on).
If you're on cellular, connect to a known-good Wi-Fi.
If it works on one network but not the other, the problem is that network's DNS, a router-level filter, or a VPN — not the iPhone.
Turn off any VPN and any custom DNS.

Settings > General > VPN & Device Management > turn the VPN off.
Settings > Wi-Fi > tap the (i) next to your network > Configure DNS > Automatic.
VPNs and custom DNS that filter Apple's CDN are a frequent cause; switch them off briefly to test.
Accept any pending terms, or update iOS.

If the App Store flashes briefly to a terms-and-conditions page, accept it.
Settings > General > Software Update — install anything available; App Store bugs do get patched.
If the App Store fails on a fully updated iPhone, on multiple networks, with a fresh Apple ID sign-in, contact Apple Support; that points at an account-side issue.

Frequently Asked Questions

Why does my iPhone say 'Cannot connect to App Store' when everything else works?

Because the App Store uses a few specific Apple domains and a content delivery network that other apps don't touch — so Safari, Mail, and WhatsApp can be fine while the App Store fails.
The fastest fix is usually to sign out of Media & Purchases (Settings > your name > Media & Purchases > Sign Out) and sign back in, which refreshes your store session.
If that doesn't help, check the iPhone's clock (must be automatic), turn off any VPN, and try a different network.
A persistent problem on every network, with a fresh sign-in and the right time, usually means a wider Apple outage — check apple.com/support/systemstatus.