Antivirus tools may block Labster, if you experience that the loading fails after 25% loading with an error message.

Recommendation #1: Just Refresh

Some tools only limit the traffic temporarily, so we always recommend you first simply try to reload the page.

Recommendation #2: Try Chrome/Firefox browser

Often times, it can be an extension you've installed in your browser which blocks Labster.
The easiest fix here is to try Google Chrome or Firefox, instead of the browser you normally use.

This simple trick nearly always solves this issue.

Recommendation #3: Fix Antivirus Blocks

To fix this, please make sure you turn off your anti-virus from blocking web traffic.
This varies from tool to tool. 

Kaspersky Antivirus

Most common issue is with Kaspersky. To fix this, you simply need to ensure you install the Kaspersky extension and have activated it in your browser extensions.
See their official guides here for all browsers.

To do this for Chrome or Microsoft Edge: 

  1. Go to the Kaspersky Add-on page.
  2. Click Add to Chrome to install it
  3. Reload the simulation page

If nothing helps please contact our support using the chat in the lower right corner and pass them the error text you get during the simulation loading.

Please do not hesitate to reach out to our support team if you have any questions or are in need of assistance. 



Looking for supported browsers? Checkout Firefox or Chrome 💬
Labster simulation system requirements? Please refer to these Specifications 💻Encounter any technical issue? Follow the basic Labster Troubleshooting 🔧
Want to get a demo of Labster? Talk to us to better understand our Pricing 🔑
Want to get the latest insights from experts? Please go to Webinars 📣
Want to discover new ways of teaching and learning? Check out Labster Blog 📚
Want to know the latest news from Labster? Please sign up to our Newsletter 💌

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Want to know more?🔎

👉 Basic Labster Troubleshooting
👉 Pressing Start shows Resume button: Simulation doesn't start
👉 Loading Stops at 0% within an iframe
👉 Stuck on teleporting screen
👉 Red Screen on Mac in Safari/Firefox
👉 Loading difficulties
👉 Stuck in a simulation? Quick tips here
👉 Out of Memory error message
👉 Black screen when entering a simulation
👉 Media won't work in Safari
👉 Missing element
👉 View Theory button is blank 

If you'd like to know more, chat to us in the Messenger 😊

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