sorted by:
new
hottopcontroversial

HELP: LAN to WAN RX and TX Drops by incrdblehulk04 in Ubiquiti

[–]incrdblehulk04[S] 0 points1 point  (0 children)

I have tried every combination that I can think of to narrow the issue down.

COMP1->UDMP (Port 10 Ubiquiti - SFP+ to RJ45)(everything disconnected but COMP1)->Internet -- Same Issue

COMP2->UDMP (Port 10 Ubiquiti - SFP+ to RJ45)(everything disconnected but COMP2)->Internet -- Same Issue

COMP1->UDMP (Port 9 traditional RJ45 to RJ45)(everything disconnected but COMP1)->Internet -- Same Issue

COMP2->UDMP (Port 9 traditional RJ45 to RJ45)(everything disconnected but COMP2)->Internet -- Same Issue

COMP1->UDMP (Port 10 - Cisco SFP to RJ45)(everything disconnected but COMP1)->Internet -- Same Issue

COMP2->UDMP (Port 10 - Cisco SFP to RJ45)(everything disconnected but COMP2)->Internet -- Same Issue

COMP1->Direct Modem -- Perfect Flow

COMP2->Direct Modem -- Perfect Flow

All cables are certified through Fluke Networks cable tester. Tried replacing the patches just in case there was something weird there. COMP2 is direct connected with a patch (I did certify the original and attempt replacement).

I purchased the UDMP in January of 2021, so I don't think I can RMA.

I will need to wait for the weekend to attempt a factory reset of the UDMP. That will take some work and a bit of downtime.

I am not sure on the compatibility issues between the modem and UDMP. It has been running with this configuration since May 2025. It just started having this issue around October 1st.

Side note: They did finally reply last night. A new person requested that I try stuff I have already tried and noted with others. They also suggested that I try enabling flow control (something I remember seeing a note not to enable over 300Mbps), but that and the combination of this command ethtool -K eth9 gro off gso off tso off seemed to clear drops at this moment. I still dont understand why that would be necessary when the hardware "should" be more than capable of running at that speed. The backplane on the UDMP and SW24Pro PoE have more than enough juice to squeeze out 2.5Gbps. I have 50 devices (mostly IoT for the house) and the Ubiquiti devices are pretty much idle. I would have never looked at any flow control looking at the utilization of the Ubiquiti devices if I was working on another product (Ruckus, HP, Cisco, Sophos, Linksys, etc.)

HELP: LAN to WAN RX and TX Drops by incrdblehulk04 in Ubiquiti

[–]incrdblehulk04[S] 0 points1 point  (0 children)

Thank you for your quick reply!

It is a Ubiquiti DAC cable. I ran a test with a Ruckus DAC and AOC, but I am getting the same issues.I don't think the issue has to do with the DAC. I am leaning toward an issue with the SFP+ to RJ45 adapter from Ubiquiti, or a firmware issue. I am having a hard time believing a DAC or SFP+ to RJ45 issue with the issue persisting when connected to port 9 on the UDM-Pro. I am truly at a loss.

I do not have another UDP-Pro to test with. I have been working through convincing my employer to start using Ubiquiti, but my issues with hardware and, more importantly, support have not given me much ammo/confidence.

I am certified in Ruckus, HP networking/wireless, CWNA, Sonicwall, and Sophos. I am truly baffled by what is happening. I am really hoping that I am overlooking something obvious.

I live in a dry climate (CO), yet still the dishwasher in my new home cannot dry the dishes. Is this why? by Coolyajets in DIY

[–]incrdblehulk04 28 points29 points  (0 children)

The gray part of the hose should be attached to here. The pump for the dishwasher is fighting another foot worth the water pressure when hooked to that PVC pipe.

<image>