This article covers common issues with the NetFlow Manager addon for WHMCS and how to resolve them.
Licence Shows Invalid
If the module licence shows as invalid, check the following:
- The licence key has been entered correctly.
- The licence is active in the Snowtech client area.
- The licence is assigned to the correct product.
- The licensed domain matches the WHMCS installation domain.
- The licensed IP address matches the WHMCS server IP.
- The licensed directory matches the WHMCS installation path.
You can review licence information from:
Addons > NetFlow Manager > License
Client Cannot See the Network Usage Link
If the client cannot see the Network Usage section in the WHMCS client area, check:
- The NetFlow record exists for the correct WHMCS service.
- The NetFlow record is enabled.
- The client is viewing the correct product or service page.
- The module licence is active.
- Client area display is enabled in the addon settings.
NetFlow Details Show for the Wrong Service
NetFlow Manager links records to WHMCS service IDs. If details appear against the wrong product, edit the record and confirm that the correct WHMCS service is selected.
A client may have multiple VPS, cloud or dedicated server services, so each service should have its own NetFlow Manager record.
Client Login Opens NetFlow but Details Are Wrong
The module stores and displays NetFlow access details, but the actual traffic visibility is controlled inside NetFlow Analyzer.
If the client logs in but sees the wrong traffic, check inside NetFlow Analyzer that:
- The correct IP address is assigned to the client.
- The correct interface or traffic group is assigned.
- The user has permission to view the correct reports.
- The service has been added to the correct NetFlow user or group.
Password Is Not Showing in the Client Area
This is usually expected.
For security, NetFlow Manager should normally show the login URL and username only. Password display in the client area can be disabled by module settings.
If password display is required, check the module configuration in:
System Settings > Addon Modules > NetFlow Manager
Password Does Not Appear in Welcome Emails
Check the following:
- Email merge fields are enabled in the module settings.
- The NetFlow record is enabled.
- A password is stored for the service.
- The welcome email template contains the NetFlow merge field block.
- The email being sent is related to the correct WHMCS service.
Example merge field block:
{if $netflow_enabled}
NetFlow Analyzer Access
URL: {$netflow_url}
Username: {$netflow_username}
Password: {$netflow_password}
Group/IP: {$netflow_group} {$netflow_ip_address}
{/if}
Licence Diagnostics Are Not Updating
The module may cache licence results to avoid checking the licensing server on every page load.
Try:
- Saving the addon module settings again.
- Opening the License tab in NetFlow Manager.
- Checking that the WHMCS server can reach the Snowtech licensing server.
Addon Page Shows a WHMCS Error
If the addon page shows a WHMCS error, enable WHMCS error display temporarily and check the activity log or PHP error log.
Common causes include:
- Missing module files
- Incorrect file permissions
- Duplicate function declarations
- Old files left behind from a previous upload
- Database table not created during activation
Database Table Was Not Created
Deactivate and reactivate the module from:
System Settings > Addon Modules
The module should create the required database table during activation.
Deactivation preserves existing NetFlow Manager data.
Existing Client Has Multiple Services
A client can use the same NetFlow login for multiple services if those services are assigned to the same NetFlow user or group inside NetFlow Analyzer.
In WHMCS, each service should still have its own NetFlow Manager record. The same username and encrypted password can be reused where appropriate.
Still Having Issues?
Please contact support and include:
- The WHMCS client name or ID
- The WHMCS service ID
- The NetFlow username
- The affected IP address or group
- A screenshot of the issue
- Any relevant WHMCS or PHP error messages