Asus RT-AX57 constanly drops 5Ghz connection on the xbox series x

[mario002043]

Hello, I have a Huawei ONT installed and this Asus RT-AX57 router (latest firmware 3.0.0.4.386_52315), I bought them to replace the operator router. In general the connection works well with all the devices, but I have a particular problem with the Xbox Series X.
To summarize, on the 2.4Ghz network the xbox always connects on the first try, it also connects on its own if I restart it and if I turn it off, it doesn't matter how many times.
Now the problem comes with the 5Ghz network, the xbox most of the time fails to connect, I have to restart it or even the router for it to connect. When it connects, it works for a while and suddenly it disconnects and reconnects.
And if by luck it stays connected and works fine, the next time I turn it on it probably won't connect.
I've noticed that in the router logs, these types of events keep coming up when I turn on the xbox. I know that these are connection and disconnection attempts , but why does this happens?

Oct 16 03:08:58 wlceventd: wlceventd_proc_event(494): eth3: Deauth_ind 4E:1A:52:88:00:FE, status: 0, reason: Deauthenticated because sending station is leaving (or has left) IBSS or ESS (3), rssi:0
Oct 16 03:09:13 wlceventd: wlceventd_proc_event(530): eth3: Auth 4E:1A:52:88:00:FE, status: Successful (0), rssi:0
Oct 16 03:09:13 wlceventd: wlceventd_proc_event(559): eth3: Assoc 4E:1A:52:88:00:FE, status: Successful (0), rssi:-74
Oct 16 03:09:18 wlceventd: wlceventd_proc_event(511): eth3: Disassoc 4E:1A:52:88:00:FE, status: 0, reason: Disassociated because sending station is leaving (or has left) BSS (8), rssi:0
Oct 16 03:09:18 wlceventd: wlceventd_proc_event(494): eth3: Deauth_ind 4E:1A:52:88:00:FE, status: 0, reason: Deauthenticated because sending station is leaving (or has left) IBSS or ESS (3), rssi:0
Oct 16 03:09:22 wlceventd: wlceventd_proc_event(530): eth3: Auth 4E:1A:52:88:00:FE, status: Successful (0), rssi:0
Oct 16 03:09:22 wlceventd: wlceventd_proc_event(559): eth3: Assoc 4E:1A:52:88:00:FE, status: Successful (0), rssi:-75

In case I haven't mentioned it, I've tried everything on the 5Ghz network and none of the options seem to solve the problem definitively. I've also tried to do a hard factory reset on the router and it hasn't helped, but the problem is there since I've tried to connect the xbox to another 5Ghz network and to share mobile data and both worked perfectly.
I think it may be a problem with the MAC, although I've also tried everything with that:
-Automatic IP on the router and on the xbox
-Automatic IP on the router and manual IP on the xbox
-IP linked to MAC on the router and automatic on the xbox
-IP linked to MAC on the router and manual on the xbox
All the settings behave the same way and nothing has been solved. In some forums I've read that it could be an attack, like deauth which I doubt, I think it's more of a compatibility problem with the network cards or something else.

Thanks, I hope someone can help me.

[jzchen]

It looks like the connection is weak on 5 GHz, being -74 or -75 dBm.  Roaming Assistant setting is set to disconnect at -70 dBm.  2.4 GHz has longer range which is probably why it is functioning satisfactory on that band.  Can you somehow relocate one and/or the other so they are closer, or maybe have clear line of sight?

[mario002043]

Hi Jzchen, thanks for your reply.

As I said, I have already tried all the possible options. In fact, that roaming option was one of the first I deactivated.

It's not a signal strength issue since they are actually very close, they are one wall away. I rule that out since I was using this 5Ghz network for a long period of time because before I could last several days using it and it worked very well in terms of speed, it gives me 250 Mbps upload and almost 200 download from Xbox, which is a lot over WiFi. On the 2.4Ghz network, it doesn't even reach 100.

I think it's an authentication or Mac problem because sometimes you have to enter the password about seven times to connect, which makes no sense. But as I repeat, I've tried all the options, both have WPA2 authentication. Probablu related to firmware issue because it used to happen to me, but now it happens much more frequently.

I think I'm going to change my router because it's crazy, I've tried everything and nothing fixes it.

[jzchen]

I have moved to a BE router since end of last November...

So you noted "you tried everything".  If you think it's authentication then did you try changing the WPA2 setting?

[mario002043]

No, because its the same as 2,4Ghz where the Xbox works fine, the default.

I said I've tried everything because I've been trying every option by trial and error for several weeks and nothing works, just that. Even doing factory reset and just setting WAN on router to work.