Find the Sophos Firewall serial number

The serial number uniquely identifies a Sophos Firewall. This identifier is required for support cases, warranty or RMA clarifications, license questions, account transfers, inventory lists and internal documentation. In SFOS you can find the serial number directly in the dashboard of the local WebAdmin Console. For everyday support, it makes sense to document the serial number, model, firmware version, license status and location together so that you don’t have to access the firewall in the event of a problem. For an overview of the different Sophos accesses, Sophos portals: SophosID, Central, Support and Firewall accesses also fits. If the firewall later needs to be transferred to another account, Transfer Sophos Firewall to another Sophos Central account is the appropriate connection item.

Find serial number in SFOS dashboard

Menu path:

WebAdmin > Control center

Proceed:

1. Log in to the Sophos Firewall WebAdmin Console.

2. Open Control center or dashboard.

3. Read the Serial number in the system or appliance area.

4. Document serial number along with model, firmware version and location.

If the local WebAdmin Console is not accessible, you should not only look for the serial number, but also check the access itself. For local management access, Device Access and Local Service ACL on Sophos Firewall is relevant. If WebAdmin hangs, Restart Sophos Firewall WebAdmin GUI will help.

Find serial number outside the dashboard

Depending on the situation, the serial number may also be available outside of the dashboard:

• on the device label of the appliance,
• in purchase, license or renewal documents,
• in internal inventory or CMDB systems,
• in Sophos Central or license views if the firewall is registered,
• in previous support tickets or RMA communications. For virtual firewalls or cloud installations, you should document particularly carefully which serial number, license, instance and environment belong together. Otherwise, confusion quickly arises during migration, restore or support cases.

Quickly provide serial number for support

The serial number alone is rarely enough for a support ticket. This identifier is the unique anchor, but support must be able to classify the device, version, error and impact. It is therefore best to copy the serial number directly together with the most important operating data. Practical template:

Serial number:
Model:
Firmware version / build:
Location:
Central account or tenant:
HA cluster: yes/no
Affected function:
Error since:
Impact:
Latest backup available: yes/no

If the firewall is part of an HA cluster, both serial numbers should be specified. It is also important to know which node is affected, what role it had at the time of the error and whether a failover took place. Understand Sophos Firewall HA Cluster variants is suitable for the HA classification.

Do not confuse serial number, license and account

The serial number identifies the firewall, but does not automatically prove that the license, support and account assignment are correct. This information should be checked separately, especially in the case of renewals, changes to service providers, HA clusters or virtual firewalls.

Understanding Sophos Firewall Base License is suitable for the classification of base license, support and subscriptions. If account assignment and license responsibility change, you should also check Transfer Sophos Firewall to another Sophos Central account.

What the serial number is needed for

Typical situations:

• Open a support ticket with Sophos or partner.
• Check license status or renewal.
• Assign firewall to an account or central tenant.
• Clarify hardware defect or RMA.
• Update asset inventory.
• Document backup, restore or replacement processes. The serial number should not be passed on in isolation for support cases. Firmware version, model, time of error, affected function, logs and a short description of what has already been checked are also helpful. The process is described in How to open a support ticket with Sophos. In the case of hardware defects or RMA cases, it should also be checked whether the model, serial number, warranty or support status and location are clear. The classification can be found in Classify Sophos Hardware Warranty, Support and RMA.

Avoid typical mix-ups

Serial number, model, license, account and backup are sometimes mixed up, especially in support and license cases. This leads to unnecessary queries.

After a hardware replacement, the documentation should be consciously updated: new serial number, old serial number, RMA number, restore date, backup source, license status and central assignment. When restoring to replacement hardware, Create or restore Sophos Firewall Backup is the key connection item.

Documentation check

At least the following information should be maintained in firewall documentation:

• serial number,
• model and appliance type,
• firmware version,
• location and function,
• responsible Sophos Central tenant or account,
• License or renewal information,
• HA role if the firewall is part of a cluster,
• last backup time,
• Secure Storage Master Key if encrypted backups are used,
• Contact and support responsibilities. For HA clusters, you should document both serial numbers and clearly state which node has which role. For HA basics, Understanding Sophos Firewall HA Cluster variants fits. For backup, restore and SSMK, Create or restore Sophos Firewall backup is the more suitable connection article.

FAQ