Hey all, quick recap of the situation:
Last year I purchased the RT-BE92U with the main purpose of having more than one 2.5G port. With that said, I had issues out of the box with the router with some of my 2.4G smart devices such as smart plugs failing to connect with 6Ghz enabled. It wasn't a WPA3 related issue as I did testing of that by disabling WP3 on all bands and only disabling 6Ghz was the fix until I mad other changes and then I was able to get things all working together. Fast forward til a month or so ago, and the router was fine. Then it developed issues with Alexa, and my smart lights where Alexa's responses were altered, when interacting with the bulbs, and the bulb(s) were not turning the correct colors. There was real way to figure out or explain what was going on, as none of the usual documented fixes for compatibility would work. So after hearing so many negative things about that router, and thinking mine had gone bad, I threw it out, and went back to my RT-AX86U and things worked fine, but that still didn't solve the Ethernet upgrades I wanted to have in place.
So, since I knew my most important needs at this point, I tried a dual band TP-Link BE3600, because the BE9300 was out of stock. Well the dual band TP worked perfectly. However, the next day Walmart (yesterday) got the BE9300 back into stock so I got one of those to try and compare since I do want to have 6G available for future devices I get that can take advantage of it.
Anyway, I discovered that some of my iOT devices DO NOT like Tri-Band routers, because alexa acted up again with the light controls under the new router as well. However the light turned the right colors under the TP-Link, so the BE92U was making the problem worse. I then tested something yesterday, and set Alexa to "Brief Mode) which disables a lot of the spoken responses for things, and just plays a tone. Well that seems to have fixed the issue completely, or at least it's not noticeable now.
@Tech9 had suggested a Ubiquity router / AP to me, which I may get later on in a couple years or so. However in troubleshooting this issue, I didn't want to spend a lot of money on a new router since the RT-AX86U still works, and I was only focused on the Ethernet upgrade as to why I tried the cheapest dual band WiFi 7 router first which had a 2.5 WAN and 1 2.5G LAN which was perfect as only the computer with the 2.5 adapter is the only device that can currently use faster Ethernet. I was curious about the 6G issues though as well, and the other good news is, my smart plugs didn't have connection issues out of the box with the default settings with all three bands on either. So the Asus does have issues in some setups.
The other secret the BE9300 has, is there are two versions:
The BE9300 Archer 550, which is marketed with all 2.5 ports
The BE9300 Archer 9300 which is sold cheaper through places like Walmart, and is marketed and labeled as having a single 2.5 LAN and the 2.5 WAN with 3 1G LAN. turns out they both have all 2.5G ports despite the marketing and port labels.
So, for the time being, problem solved and I have access to faster Ethernet, and 6Ghz for my supported device, and any future devices I get going forward, and all smart home devices reported to be working correctly.
Oh, and I returned the dual band router yesterday, so will get the money back for that one.
One other thing I wanted to add for detail sake is, in testing, I disabled the iOT network on the tp-link, and connected my old airport extreme in bridge mode in 2.4 only and set it's SSID and pass to those of the iOT network, and it seems like the problems caused with the tri-band setup isn't WiFi specific. as it happened with the devices connected to the airport as well. So it must be a processing related issue tri band wifi 7 routers have over dual band routers.
As mentioned though, I seem to have been able to settle the issue down with the TP-Link where I wasn't able to with the BE92U.
Last year I purchased the RT-BE92U with the main purpose of having more than one 2.5G port. With that said, I had issues out of the box with the router with some of my 2.4G smart devices such as smart plugs failing to connect with 6Ghz enabled. It wasn't a WPA3 related issue as I did testing of that by disabling WP3 on all bands and only disabling 6Ghz was the fix until I mad other changes and then I was able to get things all working together. Fast forward til a month or so ago, and the router was fine. Then it developed issues with Alexa, and my smart lights where Alexa's responses were altered, when interacting with the bulbs, and the bulb(s) were not turning the correct colors. There was real way to figure out or explain what was going on, as none of the usual documented fixes for compatibility would work. So after hearing so many negative things about that router, and thinking mine had gone bad, I threw it out, and went back to my RT-AX86U and things worked fine, but that still didn't solve the Ethernet upgrades I wanted to have in place.
So, since I knew my most important needs at this point, I tried a dual band TP-Link BE3600, because the BE9300 was out of stock. Well the dual band TP worked perfectly. However, the next day Walmart (yesterday) got the BE9300 back into stock so I got one of those to try and compare since I do want to have 6G available for future devices I get that can take advantage of it.
Anyway, I discovered that some of my iOT devices DO NOT like Tri-Band routers, because alexa acted up again with the light controls under the new router as well. However the light turned the right colors under the TP-Link, so the BE92U was making the problem worse. I then tested something yesterday, and set Alexa to "Brief Mode) which disables a lot of the spoken responses for things, and just plays a tone. Well that seems to have fixed the issue completely, or at least it's not noticeable now.
@Tech9 had suggested a Ubiquity router / AP to me, which I may get later on in a couple years or so. However in troubleshooting this issue, I didn't want to spend a lot of money on a new router since the RT-AX86U still works, and I was only focused on the Ethernet upgrade as to why I tried the cheapest dual band WiFi 7 router first which had a 2.5 WAN and 1 2.5G LAN which was perfect as only the computer with the 2.5 adapter is the only device that can currently use faster Ethernet. I was curious about the 6G issues though as well, and the other good news is, my smart plugs didn't have connection issues out of the box with the default settings with all three bands on either. So the Asus does have issues in some setups.
The other secret the BE9300 has, is there are two versions:
The BE9300 Archer 550, which is marketed with all 2.5 ports
The BE9300 Archer 9300 which is sold cheaper through places like Walmart, and is marketed and labeled as having a single 2.5 LAN and the 2.5 WAN with 3 1G LAN. turns out they both have all 2.5G ports despite the marketing and port labels.
So, for the time being, problem solved and I have access to faster Ethernet, and 6Ghz for my supported device, and any future devices I get going forward, and all smart home devices reported to be working correctly.
Oh, and I returned the dual band router yesterday, so will get the money back for that one.
One other thing I wanted to add for detail sake is, in testing, I disabled the iOT network on the tp-link, and connected my old airport extreme in bridge mode in 2.4 only and set it's SSID and pass to those of the iOT network, and it seems like the problems caused with the tri-band setup isn't WiFi specific. as it happened with the devices connected to the airport as well. So it must be a processing related issue tri band wifi 7 routers have over dual band routers.
As mentioned though, I seem to have been able to settle the issue down with the TP-Link where I wasn't able to with the BE92U.