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How to Fix iPhone or Android Not Connecting to Work Wi-Fi

Applies toiOSAndroid
3 min fix Updated 20 Jul 2026

By , 10+ years in IT support and helpdesk How these guides are checked

Quick Answer

Go to your phone's Wi-Fi settings, tap the information icon next to the corporate network, select Forget This Network, and try logging in again.

Estimated Time to Fix: 3 minutes

Summary ​

This article guides you through fixing common issues that prevent personal smartphones from connecting to secure corporate Wi-Fi networks (often labeled as "Guest" or "BYOD" networks).

Symptoms ​

  • Your phone asks for a password but repeatedly says "Incorrect password" even when typed correctly.
  • The phone connects to the Wi-Fi but displays a "No Internet Connection" warning.
  • Your iPhone prompts you to "Trust a Certificate" and the connection fails if you decline.

Before You Start ​

  • You must know your current corporate username and password.

Instructions ​

1. Trust the Security Certificate (iPhone/iPad) ​

  1. Corporate Wi-Fi networks use special security certificates to verify your identity.
  2. Go to Settings > Wi-Fi and tap your company's network name.
  3. Enter your corporate username and password (the same one you use for your computer).
  4. A screen titled Certificate will appear. Look at the top right corner and tap Trust.
  5. Your phone should now securely connect to the network.

If your phone runs Android, the Certificate prompt above never appears and the same settings sit in a different place — go to Step 2. If the network still rejects your password after you tap Trust, the phone is holding an old one — go to Step 3.

2. Configure Advanced Settings (Android) ​

  1. Android phones sometimes require you to manually specify the security type for corporate networks.
  2. Go to Settings > Connections > Wi-Fi and tap your company's network name.
  3. If prompted for an EAP method, select PEAP.
  4. If prompted for Phase 2 authentication, select MSCHAPV2.
  5. Change the CA certificate dropdown to Use system certificates or Do not validate (depending on your IT department's specific policy).
  6. Enter your corporate username in the Identity field (leave Anonymous Identity blank).
  7. Enter your password and tap Connect.

3. Forget and Reconnect the Network ​

  1. If you recently changed your corporate password, your phone will fail to connect because it is trying to use the old password.
  2. On your phone, go to your Wi-Fi settings, tap the information icon (i or gear) next to the network name, and select Forget This Network.
  3. Tap the network name again and log in with your new password.

4. Verify Success ​

  1. Open a web browser on your phone and try loading a public website (like google.com) to confirm you have internet access.

Troubleshooting ​

WARNING

Many corporate Wi-Fi networks are set up as "Captive Portals". This means that even after connecting, you must open a web browser and accept the Terms and Conditions before the internet will work.

Symptom / ErrorPotential CauseSolution
MAC Address randomization blockedSecurity policySome companies block "Private Wi-Fi Addresses". Go to your Wi-Fi settings for the network and toggle off Private Wi-Fi Address or MAC Randomization.
Phone says "Connected without internet"Captive portalOpen Safari or Chrome and navigate to neverssl.com to force the login page to appear.

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Frequently asked questions

Why is my correct password being rejected?
If you recently changed your work password, your phone is likely trying to auto-connect using your old password in the background, locking out the connection.
What should I do if my iPhone asks me to 'Trust a Certificate'?
You must click 'Trust'. Corporate networks use security certificates to encrypt traffic. If you do not trust the certificate, the connection will be blocked.