- Compatible with:
- macOS
On macOS devices, the app provides an error code and message when there is a connection, activation, or authentication issue. See the table below for a list of error codes and their recommended resolution.
Connection and General error messages
| Code | Message/description | Resolution |
|---|---|---|
|
MB404104 MB405105 MB406100 |
Network error. Unable to contact the license server. Check your network connection and try again. (OK) | Check you have an active Internet connection. If the issue persists, submit a ticket with Support. |
|
MB404103 MB405112 MB405113 MB405114 MB405115 MB405116 MB405117 MB406101 MB406102 |
Whoops. Something went wrong, please try again later. (OK) | Retry the action later. If the issue persists, submit a ticket with Support. |
Activation error messages
| Code | Message/description/options | Resolution |
|---|---|---|
| MB403100 | License key inactive. There's an issue with your license key. Please visit the Support page. (Visit Support) (OK) | Submit a ticket with Support. |
|
MB403101 MB403107 MB404101 |
License issue. There is an issue with your license Key. (Visit Support) (OK) | Submit a ticket with Support. |
| MB403102 | Expired License Key. Your license key has expired. (Buy now) (OK) | Purchase a valid subscription. Visit our Pricing page. |
| MB403103 | License key issue. This license does not match the product you are trying to activate. (Buy now) (OK) | Purchase a valid subscription. Visit our Pricing page. |
| MB403104 | License issue. This license key was already used to activate the maximum seats available. (Ok) | Deactivate devices or purchase another subscription. See how to deactivate a device or visit our Pricing page. |
| MB403105 | License key inactive. This license key has been refunded. (Buy now) (OK) | Purchase a valid subscription. Visit our Pricing page. |
| MB403106 | License key issue. The current subscription has been canceled. (Buy now) (OK) | Purchase a valid subscription. Visit our Pricing page. |
| MB404102 | License key issue. This license key does not match our records. Please make sure you entered it correctly. (Close) | Check your license details and try again. If the issue persists, submit a ticket with Support. |
| MB404105 | No subscription found. You have a Malwarebytes account, but you still need to purchase a Malwarebytes subscription. (OK) | Purchase a valid subscription. Visit our Pricing page. |
| MB403104 | No available devices. Your subscription is already in use on the maximum devices. Free up a device by deactivating Malwarebytes on one of your devices or purchase another subscription. (OK) | Deactivate devices or purchase another subscription. See how to deactivate a device or visit our Pricing page. |
| Invalid key format. (Close) | Check your license key and enter it in the correct format, including the dashes. |
Authentication error messages
| Code | Message/description | Resolution |
|---|---|---|
| MB405100 | Account locked. You've reached the maximum number of sign in attempts. For security reasons, your account has been locked. Please try again in 10 minutes. (OK) | Wait the recommended period of time, then try to sign in again. If the issue persists, submit a ticket with Support. |
| MB405101 | Verify your email. To sign in, you need to finish activating your account first. Check your inbox for the activation email we sent you and follow the instructions (OK). | Complete the Create your Malwarebytes Account. If you cannot locate the setup/activation email, submit a ticket with Support. |
|
MB405102 MB405107 |
Account locked. Your account has been locked. Please contact Support. (Visit Support) (OK) | Submit a ticket with Support. |
| MB405103 | Account setup/confirmation required. To sign in, you need to finish activating your account first. Check your inbox for the activation email we sent you and follow the instructions. (OK) | Complete the My Account profile set up. If you cannot locate the setup/activation email, submit a ticket with Support. |
|
MB405104 MB405108 MB405109 MB405110 MB405111 |
Sign in failed. Verify your email and password are correct and try again. (OK) | Check your sign in credentials, then try to sign in again. If the issue persists, submit a ticket with Support. |
| MB405106 | Distributor or reseller account detected. You cannot sign in using a distributor or reseller account. (OK) | If you need Account and Billing information, contact your Account Manager. |