That's really disappointing to hear.

It didn't used to be this way. Up until a few months ago the multi-gig port was working just fine so I really don't understand what changed.

My device is way out of warranty now so I'm not sure what I can do aside from doing what you did. Sucks I really didn't want to have to throw more money at this.

Been using mine in router mode since I updated. Mines connected to a XS505M using CAT6A STP cabling. Have seen no issues with this port on this new version of FW.

What ethernet adapters are you using on the multi-gig port? 

What CAT# lan cables are you using? 

billg118 Dumaine 

CAT6A STP

Asus XG-C100C or  OKN 2.5 G Base-T

For the ASUS one, Is that a Intel or RealTek chip set?

Have you tried setting the adapter to force 2.5Gb connection rate only and not set it to Auto detect? 

I see for the OKN that's a Realtek chipset. I'll check the one 2.5Gb adapter I have, I wanna say it's a Intel but can't remember. 🙄

Both of these direct connect to the MultiGig port in back? 

Have you tried with a LAN switch in between? 

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Dumaine wrote:

CAT6A STP

Asus XG-C100C or  OKN 2.5 G Base-T

 

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I did a lot more troubleshooting and this isn't specifically related to the multi-gig port for me.

My issue turned out to be something wrong with my gaming PC. I updated Ethernet drivers and turned off some power saving features and the disconnects seem to have stopped.

The Asus uses the ACQ107 and is forced to 2.5. Yes it directly connects to my PC and I have not tried a switch yet.  Only has issues when the wireless is enabled.  Turned off wireless and have been running 7 days 21 hours with out a drop...

What is the brand and mfr of your ethernet adapter? 

And since then the port has been working WITH the CAX80 wifi enabled? 

What CAT# cable are you using? 

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billg118 wrote:

I did a lot more troubleshooting and this isn't specifically related to the multi-gig port for me.

 

My issue turned out to be something wrong with my gaming PC. I updated Ethernet drivers and turned off some power saving features and the disconnects seem to have stopped.

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I see. Ok, that's kind of new to me. 

I had my wifi running however mine was connected to my 10Gb switch and not my 2.5Gb adapter PC. Saw no issues while I had this online for several days with the CAX80 wifi enabled. I moved to turn it off as I found that the uplink speed on 5ghz is capped for unknown reasons so I put my 9 series online in AP mode in meantime. I'll put my 10Gb switch on a 1Gb LAN port and get my 2.5Gb PC on with the MG port and re-enable the wifi radios. 

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Dumaine wrote:

The Asus uses the ACQ107 and is forced to 2.5. Yes it directly connects to my PC and I have not tried a switch yet.  Only has issues when the wireless is enabled.  Turned off wireless and have been running 7 days 21 hours with out a drop...

 

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It has been working fine since yesterday and yes my wifi is enabled.

Ethernet adapter is whatever NIC is built into the MSI X570s Tomahawk Max Wifi motherboard.

I'm using a Cat 8 cable: https://www.amazon.com/gp/product/B0894CF8GR/

OK, Mines a Realtek PCIe 2.5Gb ethernet adapter. 

Driver v10.60.615.2022 dated 6/16/2022. 

EEE, Advance EEE, Jumbo Frame and Green Ethernet features are disabled under the Advanced tab. Speed and Duplex is set to Auto Neg. 

I've connected this pc mostly directly to the CAX80 multi gig port, there is a patch panel and a wall jack in the middle. Patch panel run is from wall jack near my PC and from panel now to the multi gig port on the CAX80. 

OK, enabled CAX80 wifi and turned OFF my Orbi 9 series system. Will monitor this.

Dumaine 

Reporting that 24 hours later, my 2.5Gb connected PC is still connected and has internet access over the MultiGig port on the CAX80 with WiFi enabled on the CAX80. 

When you updated drivers, can you look at the properties section in windows for this adapter then select the Driver tab. This should display the chipset mfr and driver version. What is seen here? Intel? Realtek? Something else seen here? 

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billg118 wrote:

It has been working fine since yesterday and yes my wifi is enabled.

Ethernet adapter is whatever NIC is built into the MSI X570s Tomahawk Max Wifi motherboard.

I'm using a Cat 8 cable: https://www.amazon.com/gp/product/B0894CF8GR/

 

 

 

 

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The Asus 10g uses Marvell or the Aqtion drivers

I found it, the MSI Tomahawk uses Realtek: https://www.msi.com/Motherboard/MAG-X570S-TOMAHAWK-MAX-WIFI/Specification

Realtek^® 8125B 2.5Gbps LAN Controller

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FURRYe38 wrote:

When you updated drivers, can you look at the properties section in windows for this adapter then select the Driver tab. This should display the chipset mfr and driver version. What is seen here? Intel? Realtek? Something else seen here? 

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billg118 wrote:

It has been working fine since yesterday and yes my wifi is enabled.

Ethernet adapter is whatever NIC is built into the MSI X570s Tomahawk Max Wifi motherboard.

I'm using a Cat 8 cable: https://www.amazon.com/gp/product/B0894CF8GR/

 

 

 

 

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Still up and running with my 2.5Gb wired PC connected to the CAX80 multi gig port and WiFi enabled on the CAX80. 

Thanks for finding this. Ive still been getting the disconnects so Ive installed the Realtek driver using the info you found.

Ill report back later to let you know if it worked.

What drivers had you been using? 

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billg118 wrote:

Thanks for finding this. Ive still been getting the disconnects so Ive installed the Realtek driver using the info you found.

 

Ill report back later to let you know if it worked.

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I installed the "Realtek PCI-E Ethernet Drivers" from the MSI support page for my motherboard.

Go to this link, click Lan Drivers, and its the W11 version.

https://www.msi.com/Motherboard/MAG-X570S-TOMAHAWK-MAX-WIFI/support#driver

MSI vesrion

Released: 9/2022

11.8.515.2022

Realtek version

Released: 11/2022

11.10.0720.2022

I haven't tested with the updated version yet but I'll be able to in a couple of hours.

Great info. Thank you...Let us know. 

Looks like I might update mine as well. 🤔

When I started having this issue I broke my own cardinal rule of "try the easy stuff first".

I thought there was no way this could be caused by the cat 8 Ethernet cable I bought less than a year ago right?

Well the jokes on me because I had a big brain moment last night and thought "Its not the cable but maybe I should try switching the cable." Lo and behold it was the cable.

I've been using a different cat 8 cable (same brand) and its been working flawlessly with 0 connection drops for 2 days. So IMO this is fixed on my side. Seems like whatever problem OP was having is not the same problem I had.

Thanks for all the troubleshooting help.

Good find. Ya, not all cables are done well. Could be the little things. 

Glad you figured it out. 

Ya I've not seen any problems on the CAX80 with wifi enabled and my 2.5Gb ethernet connected pc to the MG port. Working fine here. 

I think for some these other branded adapters or higher speed adapters, 10Gb, could maybe be effected by wifi signals being enabled. My CAX80 is 25 feet away from my PC. Possible being too close with this particular ethernet adapters could be seeing noise and interferences. Users would need to try something else. I would try Intel or Realtek based and 2.5Gb only speed adapters with them connected to the CAX80. 

And be sure to use good quality and good working CAT#A STP cabling. Been using 6A for years, zero problems.