Now when investigating this setup further it seems like this combination might not work at all.

Do i have one useless unit coming, @UI-Team ?

I'm unable to save a manual WireGuard client configuration on my UniFi Travel Router when using a hostname as the server address.

Environment:

- Device: UniFi Travel Router (UTR)

- UTR firmware: 6.6.118

- UniFi Android app: 11.1.2

- Phone: Oppo X7 pro / xiaomi hyperOS 3.0.302.0 Android 16

Steps to reproduce:

1. UniFi app > UTR > VPN > WireGuard > manual configuration

2. Server Address: vpn.my-domain.com (hostname only, no port, no spaces)

3. Server Port: 46820

Result:

The field shows "Please enter a valid IPv4 address or hostname" and the configuration cannot be saved.

Expected:

The hostname should be accepted. The iOS release notes for UniFi 10.33.0 state: "UTR: Fixed server address validation in WireGuard form (now supports both hostname and IP address)", but the issue still seems to be present on Android.

Additional info:

- The hostname resolves correctly to an IPv4 address (checked with nslookup).

- The same WireGuard server works with this hostname on my other devices.

- Other users reported the same issue: https://community.ui.com/questions/UTR-Wireguard-DDNS/1c557d8f-55f7-4514-82a1-15692d25db00

Happy to send a support file if needed.

Thanks,

Emile

I'm reaching out to the community regarding the possibility of using the UniFi 5G Backup (U5G) with third-party firewalls instead of UniFi gateways.

I'm currently working on a commercial solution for businesses, with the goal of providing a reliable 4G/5G backup Internet connection that is easy to deploy, centrally managed, and compatible with different network environments.

I purchased a U5G because its hardware design is almost perfect for what I'm looking for: it's compact, PoE-powered, easy to mount inside or onto a network rack, and has a built-in display that provides useful information about cellular connectivity.

My goal is to connect the U5G directly to a secondary WAN port on a third-party firewall (Zyxel, Sophos, Fortinet, pfSense, OPNsense, etc.), allowing the firewall to automatically switch to the cellular connection if the primary fiber connection goes down.

The intended setup is straightforward:

• Primary WAN: Customer's fiber Internet connection.

• Secondary WAN: U5G Backup with a SIM card.

• Automatic failover: Managed by the customer's existing firewall.

• Centralized monitoring: Ideally, all U5G devices would be managed through a central platform.

What I've managed to achieve so far

I successfully adopted my U5G into a self-hosted UniFi Network controller without using any UniFi gateway.

After experimenting with SSH, Linux routing tables, iptables, and NAT, I also managed to route Internet traffic from a computer connected via Ethernet through the U5G's cellular connection.

I was able to browse the Internet successfully using the U5G as my gateway, without relying on any UniFi firewall.

However, this setup currently relies on manual system modifications and isn't persistent or reliable enough for production use, especially after reboots or device reprovisioning.

My questions to the community

1. Is there any official or undocumented way to use the U5G as a standalone Ethernet WAN modem/router without a UniFi gateway?

2. Has anyone successfully used a U5G with a third-party firewall?

3. Is there a way to enable Standard WAN mode independently of a UniFi gateway?

4. If this isn't officially supported, has anyone found a reliable way to make custom routing and NAT configurations persistent across reboots and reprovisioning?

I'm also interested in any community firmware modifications or alternative firmware approaches, provided that the cellular modem and hardware features remain functional.

My intention

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I have another feature request.

I would like the option to tell my UTR-LR, to join every available open WiFi network automatically and handle the captive portal if possible.

Thanks

Gtz Pepijn

So i have a feature request.

I would like my UTR-LR to auto-connect to the best available known WiFi uplink in my list.

Am i the only one who would like this feature?

Thanks :)

gtz Pepijn

@UI-Team

The objective was to determine which phone provides better connectivity and throughput when used with a Ubiquiti UTR, particularly for USB-C Ethernet, Wi-Fi, tethering, and sustained data transfers.

The test environment included Ubiquiti U7 Pro access points, an Enterprise 24 PoE switch, an Aggregation Pro switch, and a 10GbE USB-C Ethernet adapter.

Testing included Wi-Fi throughput, wired Ethernet connectivity, and sustained Plexamp lossless music downloads to a Samsung 1TB microSD card.

The Moto G experienced inconsistent USB-C Ethernet recognition, fluctuating transfer rates, and repeated download interruptions. Wi-Fi performance improved substantially after locking the phone to the nearby U7 Pro access point.

The Samsung S26 demonstrated strong Wi-Fi performance, with measured speeds of 367–385 Mbps download and 205–209 Mbps upload in our AP tests.

The goal is to share practical results with the Ubiquiti community and help determine which device is better suited for reliable UTR connectivity and sustained data transfers.

These are independent, real-world tests, not laboratory benchmarks. Additional testing is needed before drawing definitive conclusions about UTR tethering performance.

Attachments:

• UTR_USB_Tethering_Comparative_Test_Report.zip

It is pretty unclear how my wife is supposed to use our travel router LR and connect it to a new hotel WIFI while I’m not there. Can you clarify?

She also needs to be able to teleport back home.

If this isn’t possible in a clean way, then… well, she’ll be travelling in 1 month, please fix asap 😅 I’d prefer to not give her admin rights to our sites.

Please add a software toggle to turn off the blue status LED on the UniFi 5G Max Outdoor.

Currently, there is no option in the Network Application to disable the light for this specific model. For outdoor deployments where light pollution or stealth is a factor, being able to turn off the LED is essential. As it is shown as a lighthouse in the nigth.

Thank you!

I am requesting manual radio controls for the UniFi 5G Max Outdoor, managed by a Cloud Gateway Fiber (UCG-Fiber) running UniFi Network 11.

**Current state (verified on my system)**

In UniFi Network (web and mobile app) and in the API, the U5G Max Outdoor currently only exposes APN, roaming on/off, SIM slot selection and data limits as writable cellular settings. There is:

- no manual network / PLMN (carrier) selection — `network_scan` returns empty,

- no band selection / band lock,

- no cell / tower lock.

**Requested features (three related radio controls)**

1. **Manual PLMN / carrier selection** — Auto / Manual mode; scan and list available operators (MCC/MNC + name); select and persist a preferred PLMN; optional preferred-operator list / exclusion list for multi-carrier (roaming) eSIMs; persist across reboot, re-adoption and firmware update; expose the same in the API.

2. **Band lock / band selection** — allow enabling/disabling individual LTE and NR bands (e.g. B1/B3/B7/B20/B28, n1/n28/n78), and RAT selection (Auto / LTE only / 5G NSA / 5G SA). Persist in the controller config instead of the controller pushing "all bands" on every boot/reprovision.

3. **Cell lock** — optionally lock to a specific cell (PCI + EARFCN/ARFCN, or Cell ID), with a clear warning and an easy "clear lock / back to Auto" action, and automatic fallback if the locked cell disappears for a configurable time.

Also helpful and related: show serving PLMN, band(s) in aggregation, PCI/Cell ID, RSRP/RSRQ/SINR and the exact registration rejection cause (e.g. 3GPP cause) in the UI/API, plus a "retry / continue operator selection" action after a rejected registration.

**Concrete use case**

My location is in a valley. I use a (roaming/multi-carrier) eSIM/SIM where several carriers are receivable at very different quality. The modem in Auto mode repeatedly camps on the weakest / slowest carrier (or on a carrier that rejects it and then does not continue to the next operator), while a strong, fast carrier is available at the same spot. Because there is no manual PLMN selection, I cannot force the strong carrier; the only workarounds are repeated reboots ("carrier roulette") or unsupported SSH/QMI/AT hacks (`qmicli --nas-set-system-selection-preference`, `uiwwand-ctl set-radio-pref`, `qmicli --nas-set-cell-config`) that do not survive reboot or controller reprovisioning — the controller resets the radio config to "all/auto".

This is not a hardware limitation: the built-in modem (Sierra Wireless EM9291 family) supports PLMN selection, radio/band preference and cell configuration via QMI/AT — the community has proven all three over SSH. What is missing is exposure and persistence in UniFi Network.

**Why this matters / competitive parity**

Manual carrier selection, band lock and cell lock are standard on comparable cellular routers — e.g. Teltonika (RUTX/RUTM 5G series), GL.iNet (GL-X3000 / Spitz AX), Peplink, Zyxel (NR7101/FWA series) and ZTE — and are essential for fixed-wireless (FWA) installs, rural/valley locations, failover/WAN-backup use, and multi-carrier eSIMs (e.g. Roamless), where Auto selection demonstrably picks rejected or unusable networks (see existing community threads linked below).

**Existing related requests (please merge/vote)**

- "U5G - manual carrier select / override badly needed !" — https://community.ui.com/questions/U5G-manual-carrier-select-override-badly-needed/eb165625-81e2-46b9-8dac-01d7e8339e99

- "U5G-Max: Add band selection or carrier-specific band profiles (required by Odido NL)" — https://community.ui.com/questions/U5G-Max-Add-band-selection-or-carrier-specific-band-profiles-required-by-Odido-NL/5445359d-0a5a-49ab-94ea-809174fbe2ba

- "Cell Locking the UniFi U5G Max Outdoor - Guide" (workaround, proves modem capability) — https://community.ui.com/questions/Cell-Locking-the-UniFi-U5G-Max-Outdoor-Guide/66758f36-e059-47bb-a711-15abe482065c

I am happy to provide a support file, modem logs, PLMN scan results from a phone at the same location, and signal measurements for the weak vs. strong carrier.

Thank you for considering this — even PLMN selection alone (persisted) would solve the most urgent failover/valley cases.

Device / versions:

- UniFi 5G Max Outdoor (EU)

- Cloud Gateway Fiber (UCG-Fiber)

- UniFi Network 11

- U5G Max Outdoor on UCG-Fiber, UniFi Network 11; eSIM roaming SIM (KPN profile via Airalo) auto-camped on Drei (3 AT) in Austria; manual Telekom/Magenta comparison at same location.

Device: UniFi 5G Backup (U5G)

Firmware: 1.4.x

Summary:

Please add a manual toggle in the UniFi app / Network interface to select which SIM source is active (physical Nano SIM or eSIM), rather than relying solely on the presence or absence of a physical card.

Use case:

I use the physical SIM as my primary connection at home and the eSIM as a travel backup. When I remove the physical SIM, the eSIM should take over — and it does. However, when I reinsert the physical SIM, the device frequently remains stuck on the eSIM profile and does not automatically switch back. The only workaround is to manually unregister the eSIM profile via the app (which requires the device to be on a LAN port with internet access), then reinsert the physical SIM.

Requested change:

A simple dropdown or toggle in the U5G Backup device settings:

• SIM source: Auto (current behavior — physical takes priority when present)
• SIM source: Physical SIM
• SIM source: eSIM

This would allow users to explicitly choose the active SIM without needing to delete/re-register eSIM profiles, and would resolve the "stuck on eSIM" issue entirely.

Additional note:

It would also be helpful if the APN setting could be stored per-SIM (physical vs. eSIM) rather than as a single global value, so that switching between carriers doesn't require a manual APN change each time.

Area to look for in/add in inspector is

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Attachments:

• Screenshot 2026-10-11 at 12.04.09 AM.jpg

Today, the inserted SIM is used only for data connectivity. This creates a gap for sites that have a mobile plan with voice service but need calls to reach UniFi Talk phones, ATA devices or softphones. The requested feature is not simply “VoIP over 5G”; it is integration with the cellular subscription’s own voice service and number.

Proposed capability

• Register and manage the carrier voice service (where the carrier, SIM and modem support it), including IMS/VoLTE or equivalent.

• Present it in UniFi Talk as a cellular trunk with the SIM’s number as the inbound and outbound identity.

• Route inbound calls to individual users, ring groups, shared numbers or an ATA; allow normal Talk transfers, voicemail, schedules and failover rules.

• Allow outbound calls through the cellular trunk, with clear per-country emergency-calling restrictions and configurable call permissions.

• Make cellular data WAN and cellular voice independently controllable, so a voice-capable SIM can be used even when Ethernet or fibre remains the primary Internet path.

• Provide clear status and diagnostics: registration state, signal quality, carrier, IMS availability, active calls, codec and failure reason.

Important safeguards

This should be explicitly capability- and carrier-dependent. UniFi should show “not supported by carrier/SIM/device” where appropriate rather than attempting a generic workaround. It should not require exposing carrier credentials to the user, bypassing operator policy or pretending that every data-only plan has voice capability.

Why this matters

It would give UniFi a practical all-in-one option for small sites, temporary locations, resilience and mobile-first deployments: a single installed 5G Max could provide both WAN backup and a usable business number within the Talk ecosystem. It would also be valuable in markets where the easiest number to obtain is mobile rather than a fixed SIP line.

A sensible first release could support one active cellular voice line per device, basic incoming/outgoing calling and Talk routing. Advanced features—SMS, eSIM line selection, dual-SIM behaviour and cellular voice failover—could follow.

Would Ubiquiti consider adding this to the UniFi 5G Max / Mobility and UniFi Talk roadmap?

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Long-time Ubiquiti fan and user here. Huge respect for what Robert and UI have done for the WISP industry over the years.

I’m curious how installers here handle cell service dead zones in complex or spread-out environments—places where pulling thick LMR coax isn't realistic, and passive DAS drops off too fast over distance.

Back in 2022, I helped build a system to solve this at PARI (a local radio telescope facility back in the mountains in NC). We brought cell service down from a hill a few miles away over single-mode fiber, running it into the main building and splitting it off to two other facilities over optical lines. This was done on an experimental FCC license a local senator helped me get.

I ended up patenting the architecture in 2023 (US12494845B2).

Here is how it works.

Donor Unit: Presently a rackmount headend hooked up to a outdoor multi-band antenna. It uses variable gain amplifiers to set levels automatically, preventing self-oscillation while hitting around +24 dBm TX power back to the cell tower on LTE.

Optical Transport: Connects via TX/RX fiber directly to CWDM or standard PLC splitters. Right now it just covers cellular but it can do other services as well with a filter swap but is likely to be limited to cellular.

Service Units: Compact remote units designed to fit inside standard access-point style enclosures. In a final production build, these are powered via copper PoE while carrying the RF over single-mode fiber. Prototypes are in plastic boxes.

We tested and validated the system under a 1-year FCC experimental license. Because it transports RF over fiber the users phones just work without them even knowing its there.

My current prototypes are a bit rough (4U rackmount donor unit and black ABS plastic plastic-enclosure service units).

I was genuinely curious if an all-in-one, PoE-powered RFoF remote unit in a UniFi-style form factor is something this community would actually use on large installs ?

Just mainly asking to see if this user base might be interested in something like this. DSL reports is gone.

Thank You