> For the complete documentation index, see [llms.txt](https://guides.stellaraio.com/stellar/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://guides.stellaraio.com/stellar/status-codes-and-troubleshooting/failed-to-activate-license-key.md). # Fix License Activation Problems Troubleshoot Stellar AIO 4.0 activation: check your Whop key, sync your clock, reset the computer connection and get support. If Stellar AIO 4.0 cannot activate your license key, work through the checks below. Retry activation after each step so you can stop once it works. Your **license key** is the code that activates the Stellar desktop app. It is managed through Whop, separately from the retailer logins stored in Stellar’s Accounts tab. ### 1. Check your key and membership 1. Open [Stellar AIO on Whop](https://whop.com/stellaraio/) and sign in to the account used for your purchase. 2. Open **License Key Management** in Stellar’s Whop sidebar. 3. Copy the correct key and paste it into Stellar’s license field. Check for extra spaces or missing characters. If you have multiple keys, use the one for the membership you intend to activate. 4. Try activating again. ![License Key Management in Stellar’s Whop sidebar](https://files.gitbook.com/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MQL0BOlyqRRf7zyNKSf%2Fuploads%2FPpGyMUHbXook0GAvQrcV%2Fclipboard.png?alt=media\&token=f4bff22b-255d-4073-a811-bfeec31408bb) *Open License Key Management on Whop to find and manage your key.* If the membership or key is missing, check that you are signed in to the correct Whop account. For a subscription, use your Whop profile menu → **Orders → Stellar AIO** to review its status and any renewal or payment issue. Ask support if your access is unclear; do not purchase again just because the key is missing. ### 2. Check your computer’s date and time An incorrect system clock can interfere with activation. Check the date, time and time zone on the computer or server where Stellar is running. #### Windows 1. Open **Settings → Time & language → Date & time**. You can also right-click the taskbar clock and choose **Adjust date and time**. 2. Turn on **Set time automatically** and check that the time zone is correct. 3. Select **Sync now** if shown, then confirm the displayed date and time are correct. #### Mac 1. Open **System Settings → General → Date & Time**. 2. Turn on **Set time and date automatically** and check that the time zone is correct. 3. Confirm the displayed date and time are correct, then reopen Stellar and retry activation. For operating-system help, see [Microsoft’s date and time instructions](https://support.microsoft.com/en-us/windows/experience/personalization/set-time-date-and-time-zone-settings-in-windows) or [Apple’s date and time instructions](https://support.apple.com/en-ie/guide/mac-help/mchlp2996/mac). ### 3. Reset the key’s computer connection If activation still fails, or you are moving to another computer, reset the key through Whop. **Reset releases the key from its current computer** so it can be activated again. 1. Stop any running tasks and close Stellar on the computer currently using the key. 2. Open **Stellar AIO on Whop → License Key Management**. 3. Find the correct key, open its **three-dot options menu**, and choose **Reset**. Follow any confirmation shown. 4. Open Stellar on the computer you want to use, paste your key into the license field and retry activation. A key reset does not transfer your tasks, profiles, proxies or other saved setup to another computer. For more detail, see [How Do I Access and Manage My Account?](https://guides.stellaraio.com/stellar/how-do-i-access-and-manage-my-account). ### Still unable to activate? Confirm the computer has an internet connection and check Stellar’s Discord announcements for any reported service issue. If the error continues, or the key or Reset option is missing, open an **Admin Ticket in #open-ticket**. Include: * The exact error message or a screenshot with your license key hidden. * Whether you are using Windows or Mac, and whether this is a new computer or server. * Your Stellar version, if available. * Which checks you tried and what happened after each one. Keep your license key private. Do not post it in public channels or include it in screenshots. Provide account details only when requested in your ticket. If support asks for logs and you can access Settings, follow [How do I export logs for support?](https://guides.stellaraio.com/stellar/status-codes-and-troubleshooting/how-do-i-export-logs-for-support). If you cannot get past activation, tell support that instead. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation by asking a question. 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