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Pub till freezing? Fix it fast in 2026

Last updated: 11 April 2026

Most pub landlords don’t realise their till freezes not because the system is broken, but because of something they could have prevented in five minutes. Your EPOS terminal doesn’t just fail randomly—it fails because of one of three things, and you can rule out two of them before you even call your support team. I’ve managed Teal Farm Pub, Washington, Tyne & Wear through hundreds of peak trading Saturday nights, and I can tell you the real cost of a frozen till isn’t the repair bill—it’s the cash transactions you’re turning away at last orders. This guide walks you through exactly what causes pub till freezing, how to troubleshoot it yourself, and when you genuinely need professional help. You’ll learn the difference between a software crash and a network failure, and more importantly, how to prevent it happening mid-service next time.

Why Your Pub Till Freezes During Service

A frozen till system almost always happens at the worst possible time—usually a Saturday night during last orders when three staff are trying to process payments simultaneously. The reason is simple: peak trading puts stress on your system in ways a test or a quiet Tuesday night never will. When I was evaluating EPOS systems for Teal Farm Pub, the real test wasn’t how the system performed in the supplier’s demo. It was what happened on a Saturday night with a full house, card-only payments, kitchen tickets, and bar tabs running at the same time. That’s when you see if your till can actually handle your business.

Your till freezes because one of four core systems has failed: your network connection, your hardware’s memory or storage, your physical power supply, or your software itself. The good news is that most of these are either preventable or fixable in under ten minutes. The bad news is that if you don’t know which one has failed, you’ll spend forty minutes troubleshooting the wrong thing while your bar staff are standing around doing nothing.

The cost of a frozen till isn’t just the repair—it’s the transactions you can’t process, the frustrated customers you’re turning away, and the staff confusion about whether to take cash or ask people to wait. A ten-minute outage on a Saturday night during last orders can cost you £200–300 in lost sales, not counting the goodwill damage and the staff stress.

Network Issues: The Most Common Culprit

Nine times out of ten, when a pub till freezes, the problem is your internet connection, not your EPOS system. Your terminal is trying to communicate with the payment processor, your stock management system, or your cloud-based data, and that connection has dropped. It can look exactly like the whole system has crashed, when actually your till is just waiting for a response that will never come.

How to Check Your Network Connection

Before you do anything else, walk over to your router. Is the internet light on? Most modern routers have a light that shows internet connection status—usually blue or green when it’s working, orange or red when it’s not. If it’s off or red, that’s your problem. Your EPOS terminal won’t work without internet, even if it can’t tell you that’s the issue.

Check your WiFi signal at the till point itself. If you’re running a wireless terminal, it might be physically too far from the router, or there might be something blocking the signal. I’ve seen pubs with tills frozen because they’re positioned three metres away from the router, and a new microwave or refrigerator was installed that runs on the same frequency. Move the terminal closer to the router temporarily. If it starts working again, you’ve found your problem.

Look at your wired connections if you have hardwired terminals. Is the Ethernet cable plugged in properly at both ends? Is the cable visibly damaged? Your IT infrastructure matters as much as your EPOS hardware because without a solid connection, even the best till system will freeze.

Restarting Your Router

This is the single most effective fix for a frozen till, and it takes ninety seconds. Unplug your router from the power socket. Count to thirty slowly. Plug it back in. Wait for all the lights to stabilise—this usually takes a minute or two. Your EPOS terminal should reconnect automatically once the router is back online.

Why does this work? Your router can get stuck in a state where it’s technically powered on but not properly communicating with your internet service provider. Switching it off and back on forces it to renegotiate that connection. It sounds too simple to be true, but I’ve restarted routers hundreds of times, and it fixes the till freeze maybe seven out of ten times.

Check Your Internet Speed

If restarting the router doesn’t work, your internet might be too slow for your EPOS system. Most modern EPOS systems need a minimum of 2 Mbps upload speed to process card payments reliably. If you’re sharing your pub WiFi with customers and you have twenty people streaming YouTube while your staff are trying to process takings, your bandwidth is being eaten up.

You can check your internet speed using Speedtest’s free tool from any device. Run it at a quiet time (9am on a Tuesday) to see your baseline, then run it again during peak service (Saturday 10pm). If the upload speed drops below 2 Mbps during service, you need to either upgrade your internet package or separate your customer WiFi from your back-of-house network.

Storage and Memory Problems

If your network connection is fine and your till still freezes, the problem is likely your terminal’s storage or memory. EPOS systems that haven’t been restarted in weeks gradually accumulate temporary files and cached data that slow them down, eventually causing them to freeze completely. It’s like a computer that’s been running for three months straight without a restart—it just gets slower and slower until it stops responding.

The Weekly Restart Rule

Your EPOS terminal should be restarted at least once a week, preferably overnight when you’re closed. Don’t just put it into standby or screensaver mode—actually shut it down completely and power it back on. This clears the temporary memory and gives the system a fresh start.

Most frozen till problems in pubs that run 24-hour or late-opening services happen because nobody remembers to restart the terminal. Three weeks of continuous operation with thousands of transactions in the queue, temporary files piling up, and the system cache getting fuller—eventually something gives up and the whole thing freezes.

Check Your Storage Space

If your EPOS runs on a Windows or iPad system, check how much storage space is left. Your terminal needs at least 10–15% free space to operate smoothly. If you’re running below 5% free space, the system will start to freeze because it can’t write new data or create temporary files.

To check storage on an iPad (common for modern pub EPOS systems), go to Settings > General > iPhone Storage. On Windows, right-click your drive and select Properties. If your free space is critical, you need to delete old transaction logs or archived data. Contact your EPOS supplier to ask which files are safe to remove—don’t just start deleting things you’re not sure about.

Power and Hardware Failures

If your network is fine and your storage space is clear, the problem might be physical. Your terminal could be overheating, the power supply could be failing, or the hardware itself could be struggling.

Check for Overheating

A till terminal that’s placed next to a radiator, in direct sunlight, or on top of a hot kitchen pass will overheat and freeze. Feel the back of your terminal. Is it hot to the touch? Is there dust clogging the vents? Most EPOS terminals have a fan that sucks air through to keep them cool. If that vent is blocked by dust or debris, the system will throttle itself down to prevent overheating, and it will become slower and slower until it freezes.

The fix is immediate: move the terminal to a cooler spot or clear the vents. Use a soft brush or compressed air to clean out dust—don’t use a damp cloth, you’ll damage the electronics. If your pub is genuinely too hot (some kitchen areas are), you need to position the terminal away from the heat source or install a small fan to improve air circulation.

Power Supply Issues

If your terminal is old, the power adapter might be failing. You’ll sometimes see this as intermittent freezing—the terminal will work fine for an hour, then freeze, then work again. This is because the power supply is struggling to deliver steady voltage, and the system is having to compensate.

Check if your terminal is plugged into a proper surge protector, not just a wall socket. In a busy pub, your electrics are constantly being used—the microwave, the fridge, the kettle, the till. If there’s a voltage surge, it can damage your terminal’s power supply. A quality surge protector strips these out and keeps your voltage stable.

Software Crashes and System Updates

Sometimes your till freezes because the software itself has crashed or an update has gone wrong. This is harder to spot because the screen might look fine, but nothing responds to touch or keyboard input.

Force Restart Your Terminal

If your terminal is completely unresponsive, you need to force restart it. On an iPad, this means pressing and holding the top button and one of the volume buttons until the power-off slider appears, then sliding to power off. On a Windows system, hold the power button for ten seconds until the screen goes black.

Don’t just tap the restart button—actually hold the power button down. This forces the system to shut down without saving anything, which clears out whatever crash or frozen process was running.

Check for Pending Updates

Sometimes a till freezes because an operating system update is pending and hasn’t been installed. The system is trying to apply the update in the background while you’re trying to use it, and the two processes conflict. Check your terminal’s settings for any pending updates. If there are any, install them immediately during a quiet period—don’t leave them hanging for weeks.

Never ignore EPOS system updates, even if they seem non-urgent. Updates include security patches that protect your payment data, and they often include performance fixes that prevent crashes. A five-minute update installation is worth it to prevent a 30-minute frozen till during service.

Step-by-Step Troubleshooting Checklist

When your till freezes mid-service, follow this order. Each step takes two minutes. Work through them in sequence. Don’t skip ahead.

Step 1: Check Your Network (2 minutes)

• Walk to your router. Is the internet light on?
• Restart the router if the light is off or red. Count to 30, then power back on.
• If WiFi, check the terminal is within 5 metres of the router. Move it closer temporarily.
• If hardwired, check the Ethernet cable is properly plugged in at both ends.

Step 2: Force Restart the Terminal (2 minutes)

• Hold the power button for 10 seconds until the screen goes black.
• Wait 30 seconds.
• Power the terminal back on.
• Wait for it to fully boot and reconnect to the network (usually 60–90 seconds).

Step 3: Check Physical Conditions (1 minute)

• Feel the back of the terminal. Is it hot?
• Is the power cable properly plugged in?
• Is it plugged into a surge protector, not a wall socket?

Step 4: Clear the Cache (2 minutes)

• If you can access your EPOS settings, look for an option to clear cached data or temporary files.
• This varies by system—contact your supplier if you can’t find it.

If your till still isn’t working after these four steps, you’ve eliminated the obvious causes. It’s time to call your supplier.

When to Call Your Supplier and What to Have Ready

When you ring your EPOS supplier to report a frozen till, they will ask you the same five questions in the same order. If you have these answers ready before you call, you’ll shave 15 minutes off the resolution time.

Information to Gather Before You Call

• Terminal serial number or device ID: Usually printed on a sticker on the back of the hardware or visible in the settings menu.
• When did it last work correctly? “Saturday evening” is not specific enough. Tell them exactly what time and what you were trying to do when it froze.
• What have you already tried? Tell them you’ve restarted the router and force-restarted the terminal. If you haven’t done this, do it before calling—most support teams will ask you to do it anyway.
• Is this the first time it’s happened or is it repeating? A till that freezes once and then works fine is often a one-off software glitch. A till that freezes repeatedly every few hours suggests a deeper hardware or network problem.
• Error messages or codes: If your till displays any error message before or after freezing, write it down exactly as it appears. Support teams can often trace problems directly from error codes.

During the Call

Your supplier might ask you to check your network connection speed or restart things again. Don’t be frustrated—they’re gathering data to diagnose the problem remotely before they send an engineer out. If they need to send someone to your site, there’s usually a call-out charge unless your terminal is still under warranty.

Ask your supplier about whether your EPOS system includes breakdown cover or support insurance. Many systems include free support and repair for the first 12 months. After that, you might be charged £80–150 per visit. Knowing what you’ve paid for upfront saves arguments later.

Preventing Future Freezes

After the till is fixed, your supplier will often tell you what caused the freeze. Whatever it was, make a note of it. If it was a network issue, upgrade your internet. If it was overheating, reposition the terminal. If it was storage space, set a monthly reminder to check free space.

The best troubleshooting is prevention. A till that’s restarted weekly, kept clear of dust and heat, and running with a stable internet connection will freeze very rarely. The pubs that call support every month are the ones that ignore these basics and only react when something breaks.

When evaluating your pub management software, ask your supplier how many support calls the average pub makes per year, and what percentage of those are preventable. This is a better measure of system reliability than any uptime percentage they can quote you.

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The pub management system used at Teal Farm keeps labour at 15% against the 25–30% UK average across 180 covers.