S24U trouble connecting on 5GHz WiFi

[teh0wner]

Greetings all. Been having an issue with my freshly arrived S24 Ultra which is doing my head in and was wondering if anyone else is having the same issue and/or knows of a fix.

At home, I have a number of 2.4Ghz and 5Ghz SSIDs. Some combined, some not. For whatever reason, it seems the S24U will not connect to the 5GHz one(s). I can see it automatically tries a number of times (maybe 3-4) to connect and eventually I get a message that "connection has failed". I've tried absolutely everything:

* Factory reset S24U
* Restart router/access point (I have a Unifi Dream Machine Pro & U6-LR)
* Update firmware on both Router & AP
* Switch between 2.4Ghz, 5Ghz and combined SSIDs. S24U will only connect when it's 2.4Ghz
* Try WPA3 + 5Ghz (didn't work)
* Disable all SSIDs and leave only 1 at 5Ghz
* Enabled WiFi Safe-mode in Developer Options

I've dumped the logs as well but couldn't make much sense of them. One interesting line was: "Connect <mac address> <SSID> is FAILURE. cmid 0xc000003 reason 8 status 65529 (google yields nothing)

I've had S9, Note 10+, S22U, S23U with no issues. Nothing from the above helped with the S24U though. Appreciate the help. Thanks in advance

[Happyman07]

Really meh so many problems ah, mine coming in few days time leh

[RTWZ]

I've been having similar problems but with the 6Ghz band. The S24U cannot detect or connect to my Asus RT-BE96U's 6Ghz band whereas my other devices can.

Tried deleting all the SSIDs and reentering the passwords but only the 2.4Ghz and 5Ghz bands can be seen and connected to. The phone does detect those two bands as WiFi 7-capable from the small '7' icon seen in Available Networks, but when I connect to them, they switch to the WiFi 6 icon.

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