How to Fix Microsoft Copilot Not Responding

When Copilot stops responding, the root cause is frequently a temporary network glitch or an interruption on Microsoft's backend servers. Because Copilot relies heavily on cloud-based large language models, even a momentary drop in your internet connection can freeze the generation process or prevent your prompts from sending. First, open a web browser and load a few different websites to ensure your internet connection is stable. If other pages load fine, the issue might be temporary server congestion on Microsoft's end. You can check independent status dashboards or Microsoft service channels to see if there is an active outage affecting Copilot services in your region.

If your network connection is sluggish or dropping packets, try restarting your router or switching from a weak Wi-Fi network to a wired Ethernet connection or a stable mobile hotspot. Sometimes, VPN services or strict corporate firewalls can also block Copilot traffic. Temporarily disable your VPN or security proxy to see if the AI assistant resumes normal operation. Once your network is verified and any blocking filters are cleared, reopen Copilot and submit a simple prompt to test its responsiveness.

If you are using Microsoft Copilot inside a web browser like Microsoft Edge or Google Chrome, accumulated cache data or conflicting browser extensions can cause the interface to freeze. Corrupted cookies and temporary site data often interfere with scripts required to render AI responses in real-time. To resolve this, open your browser settings and navigate to your privacy history to clear cached images and files for the past hour or 24 hours. Alternatively, you can open an Incognito or InPrivate browsing window, log into your Microsoft account, and test Copilot there to see if extensions are causing the disruption.

Browser extensions, particularly aggressive ad blockers, script blockers, or privacy-enhancement tools, frequently block essential API calls that Copilot needs to function. Temporarily disable all active extensions by going to your browser extension manager, then refresh the Copilot tab. If the tool starts responding normally, enable your extensions one by one to identify the specific culprit. Once identified, whitelist the Copilot domain in that extension's settings to prevent future freezes while maintaining your preferred browsing security.

Authentication token errors can cause Copilot to freeze or display endless loading animations without returning an error message. If your Microsoft account session has expired or encountered a sync glitch in the background, Copilot will fail to process queries because it cannot verify your subscription level or user permissions. To fix this, locate the profile icon within the Copilot interface or your browser sidebar, click on it, and select the option to sign out of your account. Ensure you completely close the application or browser tab after signing out to clear any lingering session states.

After a minute, reopen the Copilot application or web page and sign back in using your primary Microsoft credentials. Make sure you complete any required multi-factor authentication prompts thoroughly. Re-establishing a fresh session forces the server to generate a new authentication token, clearing out corrupt credentials that were halting your requests. This simple refresh frequently resolves persistent unresponsiveness in both standalone apps and integrated Office environments.