Going cashless can make an event quicker and easier for visitors, traders and organisers, but it also makes connectivity part of the payment infrastructure. If card terminals, EPOS systems, bars, ticket desks and vendors all depend on an internet connection, the network needs to be planned around them rather than treated as an afterthought.
This guide explains what event organisers should consider when planning internet for cashless payments, how payment traffic can be separated from other event users, and what information to collect from traders before event day.
Why cashless events need properly planned connectivity
A card terminal may not appear to use much bandwidth on its own. The challenge comes when an event has dozens of traders, multiple bars, entrance payment points and EPOS systems operating at the same time, while the same site is also supporting ticket scanning, production teams, staff, live streaming and public WiFi.
At busy periods, those requirements can peak together. Gates open, bars become busy, food traders process queues and visitors use their phones simultaneously. The event network therefore needs to be designed for peak demand, not simply the average amount of traffic across the day.
Do card machines need WiFi at an event?
Card terminals need a route to their payment service, but that does not necessarily have to be venue WiFi. Depending on the terminal and provider, it may connect using WiFi, Ethernet or its own mobile connection.
The problem at a busy event is that a terminal’s normal mobile connection may be using the same local cellular networks as thousands of attendees. Good signal strength alone therefore does not necessarily mean there will be enough usable capacity during peak periods.
Where payments are critical to the event, organisers should establish in advance how each terminal will connect and whether a managed event network will provide the primary or alternative route.
Separate payment traffic from guest WiFi
One of the most important principles is that business-critical payment systems should not simply compete with unrestricted public internet usage.
An event can have different connectivity requirements for:
- card terminals and EPOS;
- bars and food traders;
- ticketing and entrance systems;
- event organisers and staff;
- production and technical teams;
- exhibitors or sponsors;
- live streaming and media; and
- attendee or guest WiFi.
These users do not all need to sit on the same network. Separate networks or appropriately segmented access can help control who connects, manage traffic and give critical systems greater protection from high-bandwidth public usage.
Prioritise payments, ticketing and operational traffic
Network capacity is only part of the picture. Traffic can also be managed according to how important it is to the event.
If a visitor’s social-media upload takes slightly longer, the impact is relatively small. If a busy bar cannot process transactions or the entrance team cannot validate tickets, the operational and financial impact can be much greater.
For this reason, payment, ticketing and other critical operational traffic can be separated and prioritised rather than simply sharing available capacity equally with every connected device.
Plan for the busiest payment period, not the quietest
An event network that works perfectly during setup at 9am may behave very differently when the site is full.
Think about when transaction demand is likely to peak:
- when gates first open;
- immediately before a headline performance;
- during meal periods;
- during intervals;
- when bars experience concentrated queues;
- during auctions or fundraising moments;
- at merchandise stands after a performance; and
- when visitors arrive or leave in large numbers.
The connectivity plan should consider how many payment devices could be active simultaneously during those periods, alongside everything else using the event network.
Ask every vendor what connectivity they actually need
Do not wait until traders arrive on site to discover how their systems work.
As part of trader or exhibitor onboarding, ask each vendor:
- how many card terminals they will bring;
- whether those terminals use WiFi, mobile data, Ethernet or a combination;
- whether they use a separate EPOS or ordering system;
- how many staff devices require connectivity;
- whether stock or inventory information is cloud-based;
- whether printers or other networked equipment are involved;
- where their pitch, bar or stand will be located; and
- whether connectivity is essential for them to trade.
This gives the network team a much more realistic device count than simply asking how many traders will attend.
Map payment points before the event
Knowing that an event has 80 payment terminals is useful. Knowing where those 80 terminals will actually be used is much better.
Plot bars, food concessions, merchandise stands, ticket desks, box offices, fundraising points and other transaction areas onto the site plan. This helps identify where WiFi coverage and device density will be most important.
A large outdoor event may have excellent connectivity around production offices but weak coverage across a distant vendor village. Network design should follow the operational layout of the event rather than assuming one access point can serve an entire site.
Don’t rely solely on mobile signal
Mobile-connected card terminals can work perfectly well under normal conditions. Events, however, can create unusual demand on the local cellular networks as hundreds or thousands of additional devices arrive in one place.
Before relying on mobile connectivity, consider not only whether there is a 4G or 5G signal but how the networks are likely to perform when the event is at full capacity.
A managed event network can use bonded connections from multiple mobile networks, satellite, existing venue connectivity or a combination of sources depending on the site and requirement.
What about venues with existing WiFi?
Existing venue WiFi may be perfectly suitable, but it should be assessed against the event rather than assumed to be sufficient because it works well on a normal day.
Ask:
- how much internet capacity is available;
- how many simultaneous devices the network is designed to support;
- whether vendor and payment networks can be separated;
- whether coverage reaches every trading area;
- what happens if the primary connection fails; and
- who provides technical support during the event.
The best solution may be to use the venue’s existing connection and extend or supplement it rather than replace it entirely.
Build resilience around critical payment areas
If an event is heavily dependent on cashless trading, relying on a single connection creates an obvious operational risk.
Where resilience is required, different connectivity sources can be combined so an alternative route is available if the primary service degrades or fails. The appropriate level of resilience depends on the scale of the event, transaction volumes and the financial impact of losing connectivity.
This does not mean every small event needs an elaborate multi-connection network. It means the connectivity design should reflect the consequences of failure.
Don’t forget power
Internet connectivity is only one dependency. Card terminals, access points, switches, routers and EPOS equipment also need power.
When planning temporary or outdoor events, confirm where network equipment will be powered and what happens if that supply is interrupted. A resilient internet connection is of little use if the equipment distributing it loses power.
Test payments under realistic conditions
Testing one card terminal beside the router before attendees arrive does not replicate a busy event.
Before opening, test representative devices from the areas where they will actually operate. Where possible, test multiple payment points simultaneously alongside ticketing, production and other critical systems.
The aim is to identify coverage gaps, configuration problems or unexpected dependencies while there is still time to correct them.
Give traders clear connectivity instructions
If vendors will use an event-provided network, tell them before arrival rather than handing out WiFi details during setup.
Provide:
- the network they should use;
- how they will receive login details;
- whether access is limited to registered devices;
- who to contact if they cannot connect;
- where support will be available on event day; and
- any testing window before the event opens.
This reduces last-minute troubleshooting and gives organisers visibility of problems before trading begins.
Cashless event connectivity checklist
- Count card terminals, EPOS systems and other payment devices.
- Ask vendors how their equipment connects.
- Map bars, traders and payment points onto the event plan.
- Identify peak transaction periods.
- Check existing venue internet capacity and coverage.
- Assess 4G/5G availability and likely event-day demand.
- Separate payment traffic from public WiFi where appropriate.
- Prioritise critical payment, ticketing and operational systems.
- Decide what level of connectivity resilience is required.
- Check power arrangements for network and payment equipment.
- Test representative terminals in their actual locations.
- Give vendors connection and support instructions before arrival.
How much internet does a cashless event need?
There is no useful one-size-fits-all figure. A small market with a handful of terminals has very different requirements from a festival with multiple bars, hundreds of traders, ticket scanning, live production and public WiFi.
Start with the number of simultaneous users and devices, then add the other applications that will share the connection. Our Event Bandwidth Calculator can help you estimate the wider requirement.
What if you’ve already had card machines fail?
A failed transaction does not automatically mean the internet connection was responsible. Problems can also involve the payment provider, terminal, configuration or other parts of the transaction process.
However, if failures repeatedly happen when a venue becomes busy or mobile networks become congested, the connectivity design is worth investigating. Read our guide to preventing card machine connectivity problems for more troubleshooting advice.
Planning WiFi and internet for your event?
Click Telecom designs and manages event connectivity for payments, ticketing, production teams, exhibitors, streaming and attendee WiFi. The network can be designed around your venue, expected user density, vendor layout and the systems that matter most to the event.
See our Event WiFi & Managed Internet Hire service for larger or business-critical events.
