When trying to activate Aspel SAE, many users encounter the error message “La serie no es válida” (The serial is not valid) or “Serie inválida” (Invalid serial). This error prevents the program from completing activation and is especially common during upgrades, reinstallations, or migrations to a new computer. In this article, we explain all possible causes and how to resolve each one step by step.

The Error

When you try to activate Aspel SAE and enter your serial number, the program displays a dialog box with the message:

“La serie no es válida” (The serial is not valid)

Or in some versions:

“Serie inválida” (Invalid serial)

This error appears immediately after typing the serial in the activation field and clicking Accept or Activate. The program does not allow you to continue and returns to the serial entry screen or closes completely.

The error can occur in the following scenarios:

  • First installation of Aspel SAE on a new computer
  • Reinstallation after formatting the computer
  • Upgrade from a previous version of Aspel SAE
  • Migration of the program to a different computer
  • License renewal with a new serial

Root Cause

There are five main causes for Aspel SAE displaying this error:

1. Serial entered incorrectly

The most common cause. Aspel SAE serials are long alphanumeric strings where it is easy to confuse similar characters such as the letter O with the number 0, the letter I with the number 1, or the lowercase letter l with the number 1. There may also be extra whitespace at the beginning or end of the serial if it was copied from an email.

2. Serial belongs to another Aspel product

Each Aspel product (SAE, COI, NOI, Bancos) has its own serial. If you try to activate Aspel SAE with a serial from Aspel COI or any other product, you will receive the invalid serial error.

3. Serial already activated on another machine

Aspel serials have a limited number of activations. If the serial was already registered on another computer and was not properly deactivated, the system will reject it when you try to activate it on a different machine.

4. License server blocking activation

In multi-user environments, the Aspel License Server controls activations. If the server is not running, is not accessible from the network, or has an incorrect configuration, activation will fail with this error.

5. Serial expired

Aspel licenses have a set validity period. If your serial has expired, the system will not allow activation until you renew your license.

Step-by-Step Solution

Step 1: Verify the entered serial

  1. Locate your original serial in the purchase email, invoice, or license certificate you received from your distributor
  2. Compare character by character with what you entered in Aspel SAE
  3. Pay special attention to these commonly confused characters:
    • Letter O vs number 0
    • Letter I vs number 1
    • Letter l (lowercase L) vs number 1
    • Letter B vs number 8
    • Letter S vs number 5
  4. If you copied the serial from an email, paste it first into Notepad to remove hidden spaces or special formatting
  5. Make sure there are no spaces at the beginning or end of the serial

Step 2: Confirm the serial belongs to SAE

  1. Review your purchase documentation (invoice, distributor email)
  2. Verify that the document specifically indicates Aspel SAE and not another product
  3. Each product’s serials have a different identifying prefix. Consult your distributor if you have doubts about which serial corresponds to each product

Step 3: Check activation status on the License Server

  1. On the computer where the Aspel License Server is installed, open the application from Start > Aspel > License Server
  2. Review the list of registered serials
  3. Find your serial and verify if it appears as active on another computer
  4. If the serial is active on a computer you no longer have access to, note the associated computer name

Step 4: Deactivate the serial on the previous computer

If the serial is active on another computer:

  1. Go to the computer where the serial is currently active
  2. Open Aspel SAE and navigate to Help > About or Configuration > License
  3. Select the Deactivate or Release serial option
  4. Confirm the deactivation
  5. Verify on the License Server that the serial now appears as available

If you do not have access to the previous computer, contact Aspel technical support at (55) 5325-3600 or your authorized distributor to request manual release of the serial.

Step 5: Verify the License Server

  1. Open services.msc on the server computer
  2. Look for the ServLicAsp or Aspel License Server service
  3. Verify that the status is Running. If it is stopped, right-click and select Start
  4. From the client computer, verify connectivity with a ping to the server:
ping server-name
  1. Make sure the license server port (default 5555) is not blocked by the firewall:
telnet server-name 5555

Step 6: Activate the serial

  1. Open Aspel SAE
  2. In the activation window, enter your verified serial
  3. If the system requests a connection to the license server, enter the server name or IP
  4. Click Activate and wait for the process to complete
  5. If activation is successful, you will see a confirmation message

Alternative Solution

If after following all the previous steps the error persists, try the following alternatives:

Phone activation

  1. Call Aspel technical support at (55) 5325-3600
  2. Provide your serial number and purchase details
  3. The agent can verify your serial status and perform the activation remotely

Clean reinstallation

  1. Uninstall Aspel SAE completely from Control Panel > Programs
  2. Delete the residual Aspel folder at C:\Program Files (x86)\Aspel\
  3. Clean the registry entries using regedit:
    • Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Aspel and delete the SAE subkey
    • Navigate to HKEY_CURRENT_USER\SOFTWARE\Aspel and delete the SAE subkey
  4. Restart the computer
  5. Install Aspel SAE again from the original installer
  6. Attempt activation with your serial

Caution: Before modifying the Windows registry, create a restore point and back up the registry. Incorrect modifications can cause system instability.

Verify system date and time

In some cases, incorrect date and time on the computer can cause serial validation to fail:

  1. Right-click the clock in the taskbar
  2. Select Adjust date and time
  3. Enable Set time automatically
  4. Verify the time zone is correct for your location

Prevention

To avoid this error in the future, follow these recommendations:

  • Store your serial in a safe place: Create a document with all your Aspel serials and keep it backed up both digitally and physically
  • Deactivate before formatting: Always deactivate the Aspel SAE serial before formatting a computer or replacing it
  • Keep the License Server updated: Install license server updates when available
  • Document activations: Keep a record of which computers have your serials activated
  • Renew on time: Do not wait until your license expires to renew it. Aspel sends expiration notices that should be addressed promptly
  • Use copy and paste carefully: When entering the serial, use copy and paste from the original document, but verify that no extra spaces are included
IssueLikely causeQuick fix
”No se logró registrar la serie en el servidor de licencias”Insufficient domain permissionsConfigure ServLicAsp service credentials
”El servidor de licencias no responde”Service stopped or firewall blockingStart service and open port 5555
”Número máximo de activaciones alcanzado”Serial used on too many computersDeactivate on computers no longer using SAE
”Error de comunicación con el servidor de activación”No internet connectionVerify connectivity or activate by phone
”La serie ha expirado”Expired licenseContact distributor for renewal

Summary

  • The “La serie no es válida” error in Aspel SAE has five main causes: mistyped serial, serial from another product, serial already activated, license server issues, or expired serial
  • Verify character by character that the serial is correct, paying attention to similar characters like O/0, I/1, and l/1
  • Confirm the serial is for SAE and not another Aspel product
  • Check the License Server to verify if the serial is already active on another computer
  • If you cannot resolve the issue, contact Aspel support at (55) 5325-3600 for phone activation
  • Always deactivate the serial before formatting or replacing a computer to avoid future issues