For example:

I have a Webserver hosted externally, which will only ever be accessed by my n8n if I execute a workflow manually. But everytime, this device connects to the external Webserver, I want to be notified by unifi.

The alert could be via push or via mail.

Ubiquiti states on the product page: "We recommend using a physical SIM for best results, given carriers’ inconsistent eSIM support in our field testing." Meanwhile, Airalo support claims it "should work".

How can I allow a device (IPCam) time sync (NTP) from internet only and deny internet ?

I would like to request support for RFC2473 (IPv4-over-IPv6 / IPIP6 tunnel) on UniFi Gateways, including the UniFi Cloud Gateway Fiber.

Several European ISPs, including Iliad Italy, require this protocol for BYOD (Bring Your Own Device) connections. While UniFi already supports IPv6, DHCPv6, SLAAC, DS-Lite, and MAP-E (v6 Plus/OCN), it does not currently support the generic RFC2473 tunnel required by these providers.

Adding RFC2473 support would allow many customers to replace the ISP router and use UniFi gateways directly on FTTH connections without additional devices or workarounds.

Please consider adding native RFC2473/IPIP6 support in a future UniFi OS release. This feature would greatly improve compatibility with modern IPv6-based ISP deployments across Europe.

Attachments:

• support-3CF1-1779493371892.tgz

Recovering from a backup which includes the network app results other applications failing if not the same wan connection is possible.

The first step of the backup recovery is the network app and while restoring it switches from the temporary / current wan settings.

If the backup wan has no connection it fails to download the rest of the applications and their backup.

I would like to see an improved version which recovers everything without this issue. For example by keeping the setup internet connection until the hole backup is finished.

UDM Pro

Updated from 4.4.6 -> 5.0.12

Network is on 10.1.85

There was also a spike in cpu at that time.

UCG Max.

On network 10.1.185, protect 6.2.88

I have seen this before and was told it was normal but then it was fixed with an earlier firmware.

Memory use has been steadily climbing since the update, still absolute levels of 78% are OK, but this is up from 65-67% before, and it is showing no signs of a plateau.

Support file attached.

Attachments:

• support-6349-1770920838559.tgz

First run on v5.0.12:

 - Boot: Feb 5, 05:43 EST (upgrade reboot)

 - Crash: Feb 9, ~04:34 EST (first OOM kills in messages.1)

 - Uptime: ~3 days, 23 hours

 Second run:

 - Boot: Feb 9, ~06:03 EST (power cycle)

 - First crash: Feb 13, ~00:43 EST (OOM kills in messages)

 - Uptime: ~3 days, 19 hours

From what I can see in the support file, kmalloc-2k was using 1.4GB of memory and the OOM killer is killing all of the management daemons.

2026-02-13T03:53:36-05:00 kernel: kmalloc-2k 1419358KB 1419820KB

mem_trend shows the memory usage increasing at a constant ~13MB/hr.

Support file is attached

Attachments:

• support-6138-1771018286754.tgz

My UCG Fiber auto updated to UniFi OS 5.0.12 on Feb 15 at 12:16AM. When I woke up my internet is gone. The SFP+ port 7 (WAN 1) where I had my ISP connection via a UACC-CM-RJ45-MG was not anymore working. I moved it to SFP+ port 6 (WAN 2), this also was not working. Then I moved my ISP RJ45 to port 5 (re-assigned as WAN 2), there my internet was restored. 

To check if my UACC-CM-RJ45-MG was defective, I swapped it with a brand new UACC-CM-RJ45-MG (standby 2nd unit) and this new one also did not work on both port 6 & 7.

Re-started the unit by turning OFF and ON (power unit unplugged). This did not work to restore port 6 & 7.

My Network is at 10.0.162

The SFP+ ports 6 and 7 is not anymore working. How to make it work again?

According to the log, UCG Ultra updated first at 01:02:50, followed by UniFi Network at 01:05:20. Everything appeared to be OK until 01:54:48 when a USW Flex 2.5G that's connected to the gateway, and a U7 Lite that’s connected to the switch, both went offline. Another U7 Lite that meshes with the wired one then went offline at 01:57:19.

It’s only a small home network with 2 APs, so at that point there was no WiFi access. I was aware that updates were due, so I initially assumed they had bricked the UCG Ultra. I restarted the gateway via the power cable, and fortunately it restarted successfully, and everything has been okay since (currently ~4 hours later).

Although the USW Flex 2.5G going offline took down the WiFi shortly after the updates, interestingly I didn’t need to power cycle it to restore the network, which suggests the issue was probably with the UCG Ultra.

Another minor issue following the update, is that the network app had forgotten it’s Dark Theme setting. It may have ‘forgotten’ other settings, but if so, they’re not as immediately obvious.

I’ll report back if instability continues, but hopefully it’s just a one off.

Allowed flows are showinf fine.

Tried to change Flow Logging setting from All to Blocked Traffic Only and back again but this hasn’t helped. Rebooting the gateway again also hasn’t helped.

Does anyone have tips to try to resolve this ?

Network version 10.0.162 was already installed before upgrading Unifi OS

I’m only interested in seeing blocked flows from Firewall for now, I don’t run IPS or Content Filter.

Thanks.

TLDR; UXG-MAX, stable for 2.5 weeks. Memory Crept up to 99-98% and crashed

Hi,

I WAS loving this release (been running since EA, see my other posts) as it solved my SQM/CPU issues.

But I believe I have run into a memory leak that crashed my UXG-MAX after 2.5 weeks of stability (similar to other mentions in this thread).

The MEM crept up to 98% and then it went into a degraded loop until a cable pull / reboot fixed it. My /var/log/messages is full of "oom" alerts for that time period. Running SQM, IDS and Traffic ID on a 500/50 Cable Modem. Should not be too taxing for this router. Will upgrade to 5.1.1 as soon as convenient to see if this is somehow fixed.

How do I send you support files? I don't see the "private file" box on public threads like this. Should I create my own thread for an EA?

How do we roll back things?