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Unable to open any books

If you’re unable to open any books on Perlego, it’s usually caused by a browser/device setting (like cached data, a VPN/extension, or anti-tracking software) blocking part of the eReader.

Updated over a week ago

Work through the steps below in order — most issues are resolved by one of the first few checks.

Step 1: Try these quick checks

1) Log out and log back in (all devices)

  • Log out of Perlego on every device you’re signed into (web + app).

  • Then log back in and try opening a book again.

2) Clear cache/cookies (or use an incognito/private tab)

  • Clear your browser’s cache and cookies, then try again
    ​or

  • Open a new incognito/private window and try opening a book there.

3) Disable VPNs and browser extensions

  • Turn off any VPN (including built-in browser VPNs).

  • Disable browser extensions, especially:

    • ad blockers

    • privacy/anti-tracking tools

    • script blockers

4) Try a different browser

If you’re currently using one browser, try another (for example):

  • Chrome → Firefox / Safari

  • Safari → Chrome / Firefox

5) Try a different device (the app is useful here)

  • If you’re on web, try the Perlego app

  • If you’re on the app, try opening books on a desktop/laptop browser

6) Try a different network connection

  • Switch between Wi-Fi and mobile/cellular data

  • If possible, try a different Wi-Fi network entirely

7) Restart your device

A full restart can clear background processes that interfere with the eReader.

Step 2: Check for updates

For best performance, make sure you’re running the latest version of:

  • your device operating system

  • your browser

  • the Perlego app (if using the app)

Step 3: Check anti-tracking / antivirus software (common fix)

Our engineers have found that anti-tracking software can sometimes block parts of Perlego (including opening books). This can trigger an error and prevent the eReader from loading. It’s often installed automatically as part of antivirus setups.

Whitelist perlego.com

“Whitelisting” tells the software that perlego.com is trusted on your device.

Avast or AVG AntiTrack (most common)

  1. Open your AntiTrack application

  2. Go to Allowed websites

  3. Type perlego.com and click Add

  4. Confirm perlego.com now appears in your allowed list

Also try: turning off Web Shield, then opening a book again.

These steps can vary slightly depending on your device or anti-tracking software, but they should be very similar.

Still not working? Send us these details

If none of the steps above help, please contact Support and include:

  • Device model (e.g. iPhone 13, MacBook Pro 2021, Dell XPS 15)

  • Operating system version (e.g. iOS 17.3, Windows 11, macOS 14.2)

  • Browser name + version (e.g. Chrome 121, Safari 17)

  • Whether you’re using the web or the app

  • The network type you’re on (Wi-Fi / cellular)

  • A screenshot of any error message (if you see one)

We’re really sorry these troubleshooting steps didn’t work out — share the information above and we’ll take it from there 🙏

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