In short
A 5G business router is a router or gateway with a built-in 5G modem and SIM that shares a mobile connection over Wi-Fi and Ethernet. For business use, look for 5G Standalone support, good or external antennas, automatic failover, a current Wi-Fi standard, VPN and firewall features, and remote management.
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Types of 5G router
"5G router" covers several kinds of device, and the right one depends on the job:
- Network-supplied hubs. The router a network sends with its 5G broadband plan. Simple to set up and supported by the network, but usually locked to that network and with fewer business features.
- Business 5G routers and gateways. Indoor routers with a 5G modem, several Ethernet ports, business Wi-Fi, VPN and firewall features and remote management.
- Outdoor 5G units. A weatherproof modem mounted on the outside of the building where the signal is strongest, connected by a single cable to a router or switch inside.
- Cellular add-ons for existing equipment. A 5G modem or gateway that plugs into your existing firewall or SD-WAN appliance to give it a mobile backup link.
- Portable hotspots. Battery-powered mobile Wi-Fi devices for one or two people on the move; see mobile broadband for business.
If the 5G link is your main connection, it is worth investing in a business-grade router or an outdoor unit. If it is a backup for an office that already has a good firewall, a cellular gateway that plugs into it may be simpler.
Checklist: what to look for
Use this checklist when comparing routers. We deliberately do not recommend specific models here; the right choice depends on your site, network and existing equipment.
| Feature | Why it matters for a business |
|---|---|
| 5G Standalone (SA) support | Lets the router use a network's standalone service and the features built on it, as well as ordinary 5G and 4G |
| Support for UK 5G and 4G bands | The modem must support the frequencies your chosen network uses in the UK, or it may not connect at all |
| Carrier aggregation | Combines several frequency bands at once for more capacity where the network supports it |
| Antennas | Good internal antennas, or ports for external and directional antennas, make the most of weak signal |
| Ethernet ports and PoE | Enough wired ports for your switch, phones or access points; Power over Ethernet simplifies outdoor units |
| Wi-Fi standard | Wi-Fi 6, 6E or 7 serves more devices more smoothly; mesh support helps in larger spaces |
| Failover and dual WAN | Switches automatically between a fixed line and 5G, or between two mobile connections |
| SIM and eSIM | Dual SIM slots or eSIM let you add a second network or change network without a site visit |
| VPN, firewall and VLANs | Site-to-site VPN, firewall rules and separate networks for staff, guests, tills and cameras |
| Remote management | Cloud or remote management, alerts and firmware updates without visiting the site |
| Unlocked or network-locked | An unlocked router can use any network's SIM; a locked hub only works on its own network |
The network you choose matters as much as the router: check that the router is approved or tested for that network, and that the plan permits use in a router.
Not sure which option fits? Ask us
Tell us what you need and we will recommend the right option for your organisation, with a quote.
Antennas and placement
Most performance problems with 5G routers come down to where the router is, not the router itself. Signal drops sharply through brick, concrete, metal cladding and coated glass, and at basement level.
Practical rules:
- Put the router or its antennas near a window facing the nearest mast, as high as practical
- Keep it away from metal shelving, server racks and microwave ovens
- If signal is weak indoors, use external antennas or an outdoor unit rather than moving staff closer to the router
- Use separate Wi-Fi access points or mesh units to spread Wi-Fi around the building, connected to the router by cable where possible
- Check the router's signal readings during set-up and adjust its position before you fix it in place
Network hubs follow the same principle. Three Business, for example, advises placing its 5G Business Broadband hub near a window. Our business mobile coverage guide explains how to check the signal at a site before you buy.
Using a 5G router for failover
A 5G router is one of the most popular ways to keep a business online when the fixed line fails. There are three common set-ups:
- A dual-WAN router. The router takes the fixed line and the 5G connection and switches between them automatically.
- A cellular gateway behind your firewall. Your existing firewall or SD-WAN appliance treats the 5G gateway as a second internet link and fails over to it.
- SD-WAN across two links. The SD-WAN platform uses both connections at once and steers each application over the best path.
Whichever you choose, decide in advance which traffic should use the backup link, as a full office on a mobile connection can use a lot of data. Then test failover by unplugging the main line, and repeat the test periodically. Forever Group covers SD-WAN on its Meraki SD-WAN page.
Some networks package backup for you: Vodafone Business, for example, sells a fixed Hybrid Broadband service with automatic 4G backup, and O2 Business offers 4G mobile broadband as a temporary or automatic back-up.
Is a 5G business router the right fit for you?
We will check it against your systems and requirements and recommend the right option.
Network-supplied hub or your own router?
Each network sells its own hardware with its 5G broadband service, such as EE Business's 4G, 5G and 5G+ fixed wireless access routers and the hub that comes with Three Business 5G Business Broadband. These are simple to set up and supported by the network.
A business-grade router of your own makes more sense when you need:
- Failover between a fixed line and 5G, or between two networks
- VPN connections to head office or a cloud network
- Separate networks for staff, guests, tills and cameras
- External antennas or an outdoor unit for a weak-signal site
- Remote management across many sites from one console
You then buy a data plan and SIM for the router. See business data SIMs for how data SIMs, APNs and fixed IP options work, and our sister site for business SIM only plans.
Security for 5G routers
A 5G router is an internet-facing device and needs the same care as any firewall:
- Change default admin and Wi-Fi passwords before the router goes live, and use strong, unique ones
- Turn off remote administration from the internet unless you need it, and restrict it if you do
- Apply firmware updates promptly, and choose a router whose maker publishes regular security updates
- Separate guest Wi-Fi, payment terminals and cameras from your staff network
- Use a VPN for access to company systems
If you are working towards Cyber Essentials, routers and firewalls are part of the scope; our sister site covers Cyber Essentials requirements for home and remote working.
How we help
We can help you decide what kind of 5G router suits a site, whether a network's own hub is enough, and which network to use there based on coverage. We can supply 5G data plans on the networks we work with and help you set up failover alongside an existing fixed line.
Pricing depends on the hardware, data and term, so ask us for a quote. For the bigger picture, read our guides to 5G business broadband and 5G for business.
Contact us for a recommendation.
How Forever Communications helps with business mobile
We help UK organisations choose, set up and run business mobile: plans, SIMs and eSIMs, phones, mobile broadband, 5G and the device management that keeps a fleet under control.
- Start with what you have: we look at your current contracts, end dates, users and devices before suggesting anything new
- Four networks, one conversation: we supply EE Business and Three Business, and can also supply O2 Business and Vodafone Business, so you can choose the network that works where your people work
- Airtime first, devices your way: we focus on getting your airtime costs down, so you can buy iPhone, Samsung Galaxy and other devices separately and set them up to enrol in your mobile device management
- Moving without losing numbers: we help you plan the switch and keep your existing business mobile numbers
- Beyond the phone: 5G for business, mobile broadband and data SIMs for sites, vehicles and backup connections
- Device management and mobile security: MDM and mobile threat defence from vendors such as IBM, Sophos, Check Point, CrowdStrike and Lookout, plus Jamf, Ivanti, Microsoft Teams Phone Mobile and Mobile Voice Recording with EE Business; see mobile device management and security
Forever Communications is part of Forever Group. Ask us for a quote and we will set out the plans and services that fit your team.
Frequently asked questions
What is a 5G business router?
A 5G business router is a router or gateway with a built-in 5G modem and SIM. It connects to the mobile network and shares the connection over Wi-Fi and Ethernet, with business features such as VPN, firewall rules, failover and remote management.
Do I need a router that supports 5G Standalone?
It is worth having. A router that supports 5G Standalone can use a network's standalone service where it is available and falls back to ordinary 5G or 4G elsewhere, so it will not date as quickly.
Can I put any network's SIM in a 5G router?
Only if the router is unlocked, supports that network's UK frequency bands and the plan allows use in a router. Hubs supplied by a network are usually locked to it.
Is an external antenna worth it?
Often, at sites with weak signal indoors. External or outdoor antennas placed where the signal is strongest can make a noticeable difference, so it is worth testing before changing network.
Can a 5G router fail over automatically from my fibre line?
Yes, if it has dual WAN or sits behind a firewall or SD-WAN appliance that supports failover. Test it by unplugging the main line, and decide which traffic should use the backup link.
Still have a question about a 5G business router?
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