What to do in case of payment terminal network disruption during a sale?

This is the beginning of a New Year holiday, and your shop sees a surge of customers. The store fills with voices and the sounds of customers as they choose products. The line at the checkout counter already reaches the door.

You greet a familiar customer with a smile, enter the amount with ease, and hand over the POS terminal. The customer taps the card. You expect the clear beep and the soft sound of the receipt printer. A few seconds pass. The small circle on the screen keeps rotating, and the air seems frozen. At last, the screen shows a message: Network connection failed. Customers in line begin to check their watches and whisper to one another.

At this moment, pressure rises fast. Is there a problem with the customer’s card, or has the store Wi -Fi gone down? Did the payment go through or not? If you ask the customer to try again, could that cause a double charge? This kind of situation not only hurts your professional image, but may also lead to lost orders amid the confusion. 

Network instability is a challenge that every merchant may face, but experienced merchants know how to defuse a crisis through emergency plans and hardware redundancy. 

In this article, Silkpay offers an emergency guide, from on site troubleshooting steps to the use of dual network backup technology on smart terminals such as the PAX A920Pro, to ensure that your business stays online in any environment.

A three step standard response to network outages

When the transaction screen shows “connection failed” or “timeout,” stay calm and follow the steps below.

1. Confirm the transaction status to avoid duplicate charges

First, check whether the POS terminal or mobile app has generated a transaction record and check its status in the transaction history. You can also verify the transaction status in real-time through your backoffice to prevent disputes caused by delayed network responses.

If the device does not print a receipt or shows “transaction failed,” funds usually have not moved. 

If the customer says a charge notification has arrived, guide them to check for a “pending” status. If their transaction shows “Pending”, it means that the funds will be returned after a few days to their balance if unclaimed. 

2. Switch the communication mode

If you use a smart terminal such as the PAX A920Pro, check the bar at the top of the screen at once: If the Wi Fi signal icon shows an exclamation mark, the local router or broadband provider may be at fault.

Turn off WiFi quickly and allow the device to fall back to the 4G or mobile network. This dual backup approach offers the fastest fix for broadband failures.

3. Restart and reset

If the network appears normal but checkout still fails, restart the payment app or the entire terminal. This often clears logic blocks caused by cache overload or temporary protocol issues.

Backup plan 

If the network becomes completely unavailable due to a regional operator failure, please explain the situation to customers and implement your backup plan. 

For instance, log into the Silkpay app from your phone to accept Asian e-wallets or SoftPOS app to accept card payments. This backup plan ensures your customers are not left empty-handed.

Technical diagnosis: what is causing your payment latency?

Localized Wi-Fi congestion: 

When too many devices are connected to your store's network (e.g., customers utilizing public Wi-Fi), they "hog" the bandwidth. This causes payment data packets to be crowded out or delayed during transmission.

Regional ISP (Internet Service Provider) outages: 

Whether it is a severed fibre-optic cable or a server failure at the Internet service provider, network outages are the "Achilles' heel" of traditional fixed POS terminals.

Hardware obsolescence: 

Older wireless POS terminals rely on 2G/3G modules that are currently being phased out by cellular carriers, resulting in extremely poor signal acquisition and reception.

Discover our latest POS terminal model. Engineered for exceptional performance and reliability even during your busiest business hours.

How to build an "always-on" payment system?

As a merchant, while you cannot control the stability of a carrier's network, you can choose hardware equipped with resilient capabilities.

Why is the PAX A920Pro the ultimate solution?

At Silkpay, we understand that stability is non-negotiable for merchants. That is why we have selected the PAX A920Pro, a performance powerhouse designed with multiple layers of protection against network fluctuations.

• Always-on connectivity via 4G + dual-band Wi-Fi: 

The A920Pro features an industrial-grade 4G module alongside dual-band Wi-Fi (2.4GHz/5GHz) support. This provides dual communication redundancy: if the Wi-Fi signal becomes unstable, the device instantly initiates an automated failover to the 4G network. 

This "double insurance" guarantees your transactions remain uninterrupted, whether you are operating in the basement of a bustling shopping mall or at a signal-congested outdoor market.

• The acceleration effect of high-performance processors: 

Equipped with a Cortex A53 processor, the A920Pro handles complex encryption protocols at lightning speed. In many cases, "lag" isn't caused by a slow network, but by a bottleneck in device processing. 

The A920Pro’s rapid processing ensures that data is transmitted before the network even experiences a micro-fluctuation.

Conclusion: 

Every successful transaction reinforces the relationship with your customers; conversely, every awkward moment caused by a network outage erodes your brand value.

As a business owner, you should treat the connectivity stability of your payment hardware as a core component of your overall productivity. The PAX A920Pro is more than just a wireless POS terminal, it is a tailored "business insurance policy" provided by Silkpay. Equipped with rapid transaction processing, robust security features, and the powerful redundancy of dual-network backup, it ensures your business remains resilient in the face of any connectivity challenges.

Don’t let a fluctuating Wi-Fi signal dictate your revenue.

At Silkpay, we provide flexible, comprehensive payment solutions to suit your needs. Whether you choose to purchase your hardware or opt for our flexible rental plans, our Europe-based expert team provides all the technical support and backup plans to ensure your business thrives steadily in the digital age.

About the author: Silkpay

Based in Paris, Silkpay provides omnichannel and secure payment solutions to help physical stores and e-commerce in Europe and the Americas accept more than 30 of the world's most popular payment methods: Visa, Mastercard, CB, UnionPay, Alipay+, WeChat Pay as well as Asia-Pacific’s major e-wallets.

Silkpay is a winner of the LVMH Innovation Award. The company was also selected as a finalist for the "Money 20/20" Best Startup and in the "MPE Berlin” Startup Awards. Silkpay also won the "Best Fintech" awards from Capgemini and BPCE.

Silkpay helps merchants deliver the smoothest payment experience to their customers. We are a talented and international team driven by a single goal: to improve the customer experience and make payments simple and secure.