TP-Link Omada ER706W-4G Review: A Business Gateway With 4G Backup Built In
Wi-Fi 6 router, VPN gateway and Cat6 LTE modem in one, with six configurable WAN ports, SMS support and a five year warranty.
The Omada ER706W-4G is a small business gateway rather than a home router: it combines Wi-Fi 6, a full VPN gateway and a built-in 4G+ Cat6 modem, so a dropped fixed line fails over to cellular automatically without extra hardware. All six ports can be configured as WAN, which is unusual and lets you run several internet connections at once. VPN support is comprehensive, including WireGuard, OpenVPN and L2TP/IPsec as client and server, and management runs through the Omada controller, a web interface, mobile apps, command line or SNMP. The warranty is five years. Wi-Fi is capable but not the point: dual-band AX3000, no 6 GHz.
- Small offices and shops
- Sites needing internet redundancy
- VPN and remote access setups
- Omada-managed networks
Pros
- Built-in 4G+ Cat6 LTE modem with nano SIM for automatic failover
- All six gigabit ports configurable as WAN, with multi-WAN and failover
- Complete VPN suite: WireGuard, OpenVPN, L2TP/IPsec, client and server, plus DDNS
- Omada controller integration with web, app, CLI and SNMP management
- Wi-Fi 6 AX3000 with three external antennas and Omada Mesh
- SMS send and receive over the cellular connection
- Configuration backup and restore, QoS and firewall
- Five year warranty, and low 17.3 W consumption
Cons
- Wi-Fi 6 only, with no 6 GHz band and a 2.4 Gbps ceiling
- All wired ports are gigabit, so multi-gig lines are capped
- No USB ports
- Parental controls limited to content blocking
- Not a Thread border router or Matter controller
- Large and heavy at 1.68 kg with five antennas
- Includes obsolete PPTP
Who is the ER706W-4G for?
It is for a location where losing internet is a real cost: a shop, a clinic, a small office, a holiday rental. The built-in Cat6 LTE modem with a nano SIM slot means the fallback is inside the same box, up to 300 Mbps down and 50 Mbps up, with two external LTE antennas at 4 dBi. It also fits anyone running an Omada network, since it integrates with the same controller as TP-Link's access points and switches, giving one interface for the whole site. SMS send and receive is included, which is a small business feature for alerts.
What it offers
Six gigabit ports, every one configurable as WAN, with multi-WAN and failover across wired lines and cellular, so you can combine two fixed connections and LTE. Wi-Fi is dual-band AX3000, 574 Mbps on 2.4 GHz and 2402 Mbps on 5 GHz, delivered through three external antennas with 5.5 dBi on 5 GHz, and Omada Mesh lets it work with other Omada units. The VPN feature set covers WireGuard, OpenVPN, L2TP/IPsec and PPTP as both client and server, plus dynamic DNS, which is enough for site-to-site links as well as remote workers. Management options run from a simple app to CLI and SNMP, and configuration backup and restore is supported. Power draw is a modest 17.3 W.
What to know before you buy
Wi-Fi tops out at Wi-Fi 6 with no 6 GHz band and a 2.4 Gbps combined rating, so this is not the device for the fastest wireless. All ports are gigabit, so a multi-gigabit fixed line would be capped. There are no USB ports, no Thread border router and no Matter controller. Parental controls are limited to content blocking, with no scheduled pauses, reflecting its business focus. The maximum device count is not documented, and at 1.68 kg with three Wi-Fi antennas plus two LTE antennas it is a substantial unit that expects a shelf or a rack. PPTP is present but obsolete.
Is the ER706W-4G worth it?
Judged as a home router it looks expensive for Wi-Fi 6. Judged as what it is, a VPN gateway with integrated LTE failover and a five year warranty, it replaces two or three separate boxes and costs less than buying them individually. If uptime matters at your site and you want one device handling routing, VPN, Wi-Fi and cellular backup under a single management system, that is the case for it. For a home that just wants fast Wi-Fi, almost anything else is better value.
Frequently asked questions
Does the ER706W-4G include a cellular modem?
Yes, a 4G+ Cat6 modem with a nano SIM slot, rated up to 300 Mbps down and 50 Mbps up, with two external LTE antennas. It provides automatic failover when the wired connection drops.
How many internet connections can it handle?
All six ports can be configured as WAN, and multi-WAN with failover is supported, alongside the cellular connection.
Which VPN protocols does it support?
WireGuard, OpenVPN, L2TP/IPsec and PPTP, as both client and server, with dynamic DNS. PPTP is obsolete and should be avoided.
How fast is its Wi-Fi?
Dual-band Wi-Fi 6 at 574 Mbps on 2.4 GHz and 2402 Mbps on 5 GHz, for a 2.4 Gbps combined rating. There is no 6 GHz band.
Can it be managed centrally?
Yes. It works with the Omada controller alongside other Omada devices, and also offers a web interface, mobile apps, CLI and SNMP.




