Your business probably has a firewall.

But when was the last time someone checked whether it's actually protecting you?

A firewall is one of the most important layers of your business's cybersecurity. It sits between your network and the internet, helping control traffic and protect your systems from unwanted access and malicious activity.

But like computers, servers, and other technology, firewalls don't last forever.

An outdated or improperly maintained firewall can create performance problems, security gaps, and a false sense of protection.

Here are seven signs it may be time to take a closer look at yours.

1. Your Firewall Is More Than Five Years Old

Age alone doesn't automatically mean a firewall needs to be replaced, but older equipment deserves a closer look.

Cybersecurity threats, internet speeds, cloud applications, and the number of connected devices have changed dramatically over the years.

An older firewall may struggle to keep up with today's business environment.

More importantly, manufacturers eventually stop providing updates and support for older models.

Knowing the age and support status of your firewall should be part of your overall technology planning.

2. Your Firewall Is No Longer Supported

This is one of the biggest warning signs.

Manufacturers eventually designate older firewall models as End-of-Life (EOL) or End-of-Support (EOS).

Once that happens, the device may stop receiving:

• Security updates

• Firmware updates

• Bug fixes

• Technical support

• Updated security services

A firewall can continue turning on and passing internet traffic long after it should have been replaced.

That doesn't mean it's providing the level of protection your business needs.

3. Your Internet Is Fast, but Your Network Still Feels Slow

You upgraded your internet connection, but employees are still complaining about performance.

The firewall could be part of the problem.

Every connection entering or leaving your network may pass through the firewall. Modern security features can also require significant processing power.

An older or undersized firewall may become a bottleneck, preventing your business from taking full advantage of the internet speed you're paying for.

Before blaming your internet provider, it's worth reviewing the equipment sitting between your employees and that connection.

4. Your Business Has Grown

Think about how much your business has changed since your firewall was installed.

Maybe you've added:

• More employees

• Additional computers

• VoIP phones

• Security cameras

• Wireless access points

• Cloud applications

• Smart devices

• Another office location

Every additional device and user creates more network traffic.

A firewall that worked perfectly for a small office several years ago may not be properly sized for the business you operate today.

Your technology should grow along with your company.

5. Remote Work Has Changed How Employees Connect

Remote and hybrid work have changed business networks considerably.

Employees may now need secure access to company resources from their homes, hotels, customer locations, or while traveling.

That means your firewall may be handling technologies such as:

• VPN connections

• Remote access

• Site-to-site connections

• Cloud applications

• Additional security policies

Remote access needs to be configured carefully.

If your firewall was installed before remote work became common in your business, it's worth reviewing whether your current configuration still meets your needs.

6. Security Features Aren't Being Maintained

Installing a firewall and forgetting about it isn't enough.

Business-grade firewalls may include security capabilities such as intrusion prevention, web filtering, application controls, malware protection, VPN services, and threat detection.

But those capabilities need to be properly configured, licensed, updated, and monitored.

It's possible to have an expensive firewall protecting your network while only using a fraction of its security capabilities.

Your firewall should be actively managed as part of your cybersecurity strategy—not treated like a box that simply provides internet access.

7. Nobody Knows the Last Time It Was Reviewed

Here's one of the easiest warning signs to identify.

Ask this question:

When was the last time someone reviewed our firewall?

If nobody knows the answer, it's probably time.

A firewall review can help determine:

• How old the device is

• Whether it's still supported

• Whether firmware is current

• Whether security subscriptions are active

• Whether unnecessary access is allowed

• Whether remote access is properly secured

• Whether the firewall is appropriately sized

• Whether the configuration still matches your business

You don't necessarily need a new firewall every time you perform a review.

Sometimes the existing equipment simply needs updates or configuration changes.

The important thing is knowing where you stand.

A Firewall Is Only One Layer of Security

It's also important to understand what a firewall can't do.

No single security product can protect a business from every threat.

A strong cybersecurity strategy may also include:

• Endpoint protection

• Email security

• Multi-Factor Authentication (MFA)

• Secure backups

• Password management

• Employee cybersecurity awareness training

• Microsoft 365 security

• Regular patching and updates

• Monitoring and response

Think of cybersecurity as multiple layers working together.

If one layer fails, another may help prevent an incident from becoming a major business disruption.

Don't Wait Until Your Firewall Fails

Replacing technology during an emergency is rarely the best approach.

If your firewall fails unexpectedly, employees may lose internet access, cloud applications, email connectivity, remote access, and other services your business depends on.

Proactively reviewing and replacing aging network equipment allows you to budget for upgrades and schedule them at a time that minimizes disruption.

It's the same principle we've discussed with computers and other business technology:

Plan the replacement before the failure makes the decision for you.

How Black Dog IT Solutions Can Help

At Black Dog IT Solutions, we help small businesses build secure, reliable networks that support their day-to-day operations and future growth.

We can review your current firewall and network environment to help determine whether your equipment is properly configured, appropriately sized, receiving necessary updates, and still supported by the manufacturer.

If everything looks good, great.

If something needs attention, you'll know before it becomes an emergency.

When Was Your Firewall Last Reviewed?

If you don't know how old your firewall is—or can't remember the last time someone reviewed it—now is a good time to find out.

A proactive network security review can uncover aging equipment, performance bottlenecks, configuration issues, and potential security gaps before they impact your business.

Contact Black Dog IT Solutions today to schedule a firewall and network security assessment.

We'll help make sure the equipment protecting your business is ready for the job.