So as an update - My inconsistent Internet speeds have continued, but I've narrowed things down a bit.
Recently, I've tested connectivity on 2 different laptops using 2 different USB to 2.5Gbit Ethernet connectors. In order to isolate the AXE-16000 fully, I even swapped to an ET12 router and everything worked perfectly (as far as wired. Once you Mesh setup the ET12, other things pop up...)
Also, I've noticed this unstable connection primarily happens on any connections over 1Gbit. The 1Gbit connections are pretty stable, but once I move to the 10Gbit ports, or even the 2.5Gbit port (since I've also flipped WAN to a 10Gb in my testing, also my service with Comcast/Xfinity is 1200+) the inconsistencies begin.
My decision was to return this router a second time to Amazon (5 star support on their end) and try for one more. If I get a 3rd AXE-16000 that has weird bugs, I'm done with it.
I got some new cables, 6a, to help but it does have a better transfer rating than the 6e. As you noticed, I have been getting 1.6 to 1.8 Gbps on the wired 2.5 Gbs system port, from the 2.5 Gbs AXE 16000 port which is getting the data from a 2402 Mbps Wi-Fi system. The 1.6 Gbps is probably due to the Wi-Fi transfer speed.
Hopefully, the new router works better, but for us, mixing different devices, such as Routers, makes it hard to even follow exactly what is going on. If you system does become unstable above 1 Gbps then possibly it is a cable or some other component.
They have redone the Beta firmware, in case you did not notice. I do not know it if would help, since I do not appear to need it.
Apologies if I created any confusion. Main point I was going for was that I was attempting to isolate pieces of hardware to see if it was the router or something connected to it. So far, it seems to be my router as other devices don’t have any issues when connected to other means of connectivity.
Another thing I forgot to mention is I also tried Merlin firmware to see if that helped at all. No joy. Ended up going back to the current Asuswrt. I’ll definitely post updates once I receive the new AXE-16000 with hopefully better news!
I have been continuing my research and was wondering, do you show both Wi-Fi and Ethernet connections at the same time? Mine was doing that I my transfer speed was around 500 Mbps using the same file.
I just did a test using the 2.5 Gbps ports on the Z590 and 690 motherboards and the two 10 Gbps ports on the AXE16000.
Hi Saltgrass - I've made sure that my Wi-Fi was off on my laptop while I was hardwired to the router, so I wasn't double-connected.
Unfortunate news... I received the brand new GT-AXE16000 and this one can't even get a WAN address from Xfinity. It just sits on "Your ISP's DHCP does not function correctly" no matter what I do. I've reset my modem several times, I've updated the firmware on the router (had it downloaded to my laptop), I've tried switching ports around, factory reset the new router, feels like I've tried everything. So I can't even test my Internet speeds because I can't even connect to the Internet with it! *Facepalm* I think I'm done with the GT-AXE16000... I've had nothing but bugs and problems with it and this one kind of takes the cake. I'm going to give it a day or two to see if there might be something going on with Xfinity, but I doubt it.