Ubiquiti UniFi Cloud Gateway UltraFrom real comments

Name: Ubiquiti UniFi Cloud Gateway Ultra
Rating: 2.5 (14 reviews)

Verdict distilled from 14 mentions across 8 aspects in comments under product review videos.

Positive sentiment33%

PROS 33%

CONS 67%

Rank based on 14 mentions across 8 aspects

View the verdict as

Buy this if...

You want a reliable, affordably priced UniFi gateway, including as a backup unit
You need multi-WAN failover or want to add a 4G/5G backup connection
You're comfortable working through UniFi's app-based and cloud-account setup process

What users love

Multi-WAN failover capability0 mentions

Widely praised

Reliable performance0 mentions

Strongly positive

Cost-effective backup gateway0 mentions

Widely praised

Skip this if...

You're migrating from an existing UniFi Cloud Key/USG setup and want a plug-and-play transition
You need built-in VLAN/firewall isolation working out of the box without troubleshooting
You expect it to fully replace your ISP's modem without any additional hardware

What users complain about

Unclear router/modem role0 mentions

Generally negative

Migration and re-adoption friction0 mentions

Frequently criticized

VLAN and firewall configuration difficulty0 mentions

Generally negative

Cloud account dependency0 mentions

Generally negative

Uncertain power-outage recovery0 mentions

Generally negative

Compare in seconds

Based on user comments

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1Mid

ASUS TUF AX3000

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Wide WiFi coverage

Dedicated gaming port

5GHz channel selection bug

Unclear VPN client setup

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Apple AirPort Extreme

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Easy setup

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Risky teardown and repair

3Premium

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VLAN and multi-SSID support

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4Mid

Asus GT-AX6000

Dual 2.5Gbps portsRich feature set and customizationReliable firmware and build qualityRandom disconnects and instabilityBuffering and heavy-load issuesBulky, flashy design

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Dual 2.5Gbps ports

Rich feature set and customization

Reliable firmware and build quality

Random disconnects and instability

Buffering and heavy-load issues

Bulky, flashy design

5Mid

Asus RT-AX86U

Reliable long-term performanceLED light controlStrong AiMesh multi-floor coverageFirmware-related instabilityInconsistent wireless speeds for some usersLimited AiMesh channel control

Asus RT-AX86U

Reliable long-term performance

LED light control

Strong AiMesh multi-floor coverage

Firmware-related instability

Inconsistent wireless speeds for some users

Limited AiMesh channel control

6Budget

Ubiquiti UniFi Flex Mini 2.5G

Affordable 2.5GbE upgradeVLAN and multi-network supportFuture-proofing for growing networksHigher total cost versus alternativesNo PoE-outUncertainty about real-world 2.5G throughput

Ubiquiti UniFi Flex Mini 2.5G

Affordable 2.5GbE upgrade

VLAN and multi-network support

Future-proofing for growing networks

Higher total cost versus alternatives

No PoE-out

Uncertainty about real-world 2.5G throughput

7Mid

iFi iSilencer 3.0

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iFi iSilencer 3.0

Fits into broader cable/noise tweaking setups

Cleaner, more detailed sound

Improved streaming stability

Perceived as overpriced or a ripoff

No audible difference for some users

Uncertainty over correct placement

8Mid

Ubiquiti UniFi Dream Router 7

Wi-Fi 7 upgrade path

Ubiquiti UniFi Dream Router 7

Wi-Fi 7 upgrade path

9Premium

Ubiquiti UniFi Cloud Gateway Fiber

Quiet and cool runningSolid upgrade from older/simpler gatewaysNative 10 GbE fiber-ready WANConfusing port forwarding and VPN setupFirewall/NAT throughput concernsLimited PoE budget/ports

Ubiquiti UniFi Cloud Gateway Fiber

Quiet and cool running

Solid upgrade from older/simpler gateways

Native 10 GbE fiber-ready WAN

Confusing port forwarding and VPN setup

Firewall/NAT throughput concerns

Limited PoE budget/ports

10Premium

Asus GT-AX11000

Strong coverage in large homesHandles heavy multi-device trafficAiMesh expansion flexibilityInconsistent real-world wifi speedsComplex setup for novicesReliability complaints

Asus GT-AX11000

Strong coverage in large homes

Handles heavy multi-device traffic

AiMesh expansion flexibility

Inconsistent real-world wifi speeds

Complex setup for novices

Reliability complaints

You are here

31Mid

Ubiquiti UniFi Cloud Gateway Ultra

Multi-WAN failover capabilityCost-effective backup gatewayReliable performanceUnclear router/modem roleMigration and re-adoption frictionVLAN and firewall configuration difficulty

Ubiquiti UniFi Cloud Gateway Ultra

Multi-WAN failover capability

Cost-effective backup gateway

Reliable performance

Unclear router/modem role

Migration and re-adoption friction

VLAN and firewall configuration difficulty

Reliable
1. Apple AirPort Extremearrow_upward17
2. Ubiquiti UniFi Cloud Gateway Ultraarrow_upward1
Overheating
1. Asus RT-AX86Uarrow_downward2
2. Apple AirPort Extremearrow_downward11
Fast speeds
1. Asus GT-AX6000arrow_upward6
2. Apple AirPort Extremearrow_upward5
Aimesh
1. Asus GT-AX11000arrow_upward4
2. ASUS TUF AX3000arrow_upward3
Good value
1. Asus GT-AX6000arrow_upward4
2. Asus RT-AX86Uarrow_upward2
High price
1. ASUS TUF AX3000arrow_downward1
2. Asus GT-AX11000arrow_downward2

Overall Impression

Buyers who already own one describe the UCG-Ultra as dependable and good value. One user called it 'rock solid' and said they loved it, while another purchased it specifically as a cheaper backup to a UDM Pro SE, noting it was more cost-effective than running two SE units. This suggests owners see it as a trustworthy secondary or primary gateway without a premium price tag, even if the exact reasons behind that reliability perception aren't detailed.

New and prospective owners are confused about its exact role as router versus modem. Multiple commenters asked whether the UCG-Ultra can act as both a modem and router, whether an existing ISP modem is still required (including on NBN fixed wireless), and why plugging in a single-WAN giga modem caused speeds to drop drastically. This points to unclear expectations around WAN connectivity requirements and possibly configuration issues when integrating with non-standard ISP hardware.

Migrating into an existing UniFi environment and configuring VLANs proved tricky for several users. One commenter described IP addressing conflicts and failed re-adoption of about 20 access points when adding the gateway to a network previously run by a Cloud Key, fearing a full reset would be required. Others struggled to write firewall rules to block a guest VLAN from reaching the default LAN, indicating that advanced network segmentation isn't always intuitive for newcomers.

Outdated / Not-accurate data?

swap_horizMulti-WAN failover capability

2 mentions

Widely praised

The device supports multi-WAN failover detection, with one technically detailed comment explaining how it likely uses layer 3/4 echo-server monitoring to detect outages and switch WAN connections. Another user is actively planning to add a 4G/5G backup WAN device to it.

@myrtleroadlights

just got one of these, and about to set it up.\nwhat do you use for the secondary backup wan device ? I'm looking to see what sort of 4G/5G backup devices I would need to plug in to the ethernet port to give me a backup.

smart_display

January 25, 2026

@thewallacepf

Awesome video! May I give you a suggestion? When testing Multi-WAN Routers, avoid pulling the cable that connects your GW to those ISP routers/modems. When you pull the cable, you're causing an interruption at the Layer-1 which will be very easy for any device to detect (And this isn't a reality from an outage perspective). The easiest way to validate this test and really see how long the gateway takes to commute between WAN Connections would be, interrupting the uplink from those ISP Routers/Modems to the ISP itself, I mean, pulling the WAN cable/fiber from those devices. With that your maintaining your Layer 1 and 2 connectivity and your GW will need to detect it using Layer 3 or anything above that. As per my understanding, this device uses an Echo Server from Ubiquiti to validate the link connection but I can't see more information about how frequently this synthetic monitoring occurs and if this is configurable or not. TL;DR: If your multi-WAN uses Layer 3/4 monitoring to detect outages you should test forcing them to work on that level once Layer 1/2 doesn't represent the reality and will be too easy to detect. Hope it helps! Thanks for your content.

smart_display

April 22, 2024

check_circleReliable performance

1 mentions

Strongly positive

Owners who already purchased the UCG-Ultra describe it as 'rock solid' and express strong satisfaction after using it. This positive sentiment comes from actual buyers rather than prospective users.

@JasonsLabVideos

I bought one too, rock solid device !! Love it !! Good video too !

smart_display

April 5, 2024

attach_moneyCost-effective backup gateway

1 mentions

Widely praised

One user chose the UCG-Ultra specifically as a backup to their UDM Pro SE, noting it was a cheaper way to have redundancy than buying a second SE unit. This positions it as good value for a secondary or failover role.

@slam5

got one as a backup to my udm-pro se. great way to backup at a lower cost than having 2 se's.

smart_display

April 22, 2024

help_outlineUnclear router/modem role

4 mentions

Generally negative

Several prospective buyers were confused about whether the UCG-Ultra can replace their ISP modem entirely or whether a separate modem is still required, including on fixed wireless connections. One user also reported a major speed drop when connecting a single-WAN modem to the UCG-Ultra's WAN port.

@jennascott9341

So if you have this gateway along with switches access points could this act as a modem and a router? I keep getting mixed answers that it is both, or that you need to buy a modem in addition to the gateway ultra.

smart_display

April 14, 2025

@danpaul1342

Do you still need a isp modem with this on NBN fixed wireless?\nI’m wanting to replace my Telstra one

smart_display

April 5, 2025

@anildivecha

pardon my ignorance, but do I need a dual WAN modem to plug the WAN from the router to UCGU's WAN for it to work? At the moment my ISP has provided a giga speed modem but it only has one WAN and when i plug LAN to the UCGU WAN, the 200mps drops to 9mbpds. What am I doing wrong?

smart_display

October 1, 2024

@TheStevenWhiting

Is it actually a router or not? Looking for a new router as the new ISP doesn't provide one so I want to get a decent one.

smart_display

May 29, 2024

warningMigration and re-adoption friction

2 mentions

Frequently criticized

Adding the gateway to an existing UniFi network caused IP addressing conflicts and failed re-adoption of roughly 20 access points for one user, who worried a full reset of every device might be needed. Another commenter asked for a dedicated upgrade guide from CloudKey/USG, citing inconsistent guidance online.

@DuncLowe-l8b

Great video. Helped loads. I have a question that maybe you can help with. If I add the cloud gateway ultra to an existing Unifi network (currently managed by cloud keygen 2) and the existing network router is supplying 192.168.0.1 to 254 the cloud gateway defaults to .1.1. Do I need to readopt every single AP and device (there's about 20 across the units). They seem to take up a .1.x IP but adoption always fails. Any ideas? Is it a reset for each one?? I Hope not!

smart_display

September 30, 2024

@MrBrettStar

It would be great to see a guide for upgrading from cloud key/usg to the ucg-ultra. The guides online seem to be hit and miss. There will be a LOT of people doing this shortly now that there is more stock in Australia (including me).

smart_display

June 26, 2024

ruleVLAN and firewall configuration difficulty

2 mentions

Generally negative

One user struggled to configure firewall rules that would block a guest Wi-Fi VLAN from accessing the default LAN despite following standard rule setup. Another asked for a dedicated tutorial on VLAN and guest network setup, indicating the process isn't well documented for this device.

@ZohrePishbin

Hi Thanks for this video. Can you prepare a video with current setup (these two devices that are introduced here) for setting VLAN and guest network using UCG-Ultra Ubiquiti Cloud Gateway and UAP-AC- PRo. I searched your channel but I couldn't find anything.

smart_display

April 25, 2025

@andrewjosephson2480

Thanks for the video. I'm struggling to block access to the default/management network from another vlan/wifi network. EG. Despite configuring firewall rules to deny WiFi vlan 192.168.47.0/24 access to Default LAN 192.168.1.0/24. Any ideas?

smart_display

July 7, 2024

cloudCloud account dependency

1 mentions

Generally negative

Remote and app-based management appears to require a Ubiquiti account, which one commenter explicitly questioned, raising potential concerns for users wary of cloud-tied management for local infrastructure.

@harrij.9542

It needs a ubiquiti account to be able to manage via phone app ?

smart_display

July 17, 2025

power_offUncertain power-outage recovery

1 mentions

Generally negative

A long-time CloudKey user raised concerns about needing to restore from backup after ungraceful power loss and was unsure whether this issue was resolved in the Cloud Gateway Ultra, finding no clear information available.

@srengregersen8172

How does it handle a power outage? I've been running a CloudKey for some years and we always had to recover from a backup whenever it got disconnected from power without gracefully shutting down first. I hope this issue has been fixed in the Cloud Gateway Ultra, but I cannot find any info about it yet.

smart_display

April 8, 2024

Ubiquiti UniFi Cloud Gateway Ultrachat_bubble_outlineFrom real comments

thumb_up_off_altBuy this if...

What users lovefavorite_border

thumb_down_off_altSkip this if...

What users complain aboutheart_broken

Compare in seconds

Who wins on what

Reliable

Overheating

Fast speeds

Aimesh

Good value

High price

auto_awesomeOverall Impression

Ubiquiti UniFi Cloud Gateway UltraFrom real comments

Buy this if...

What users love

Skip this if...

What users complain about

Overall Impression