S23 Ultra - Connect to WiFi but no internet/constantly dropping out/Wifi6 issue

[Chistery]

Anyone else seeing issues with Wifi6 on their S23 Ultra?

My phone will connect but then stop passing data until I disconnect and reconnect. The same SSID is fine on my S22 Ultra and all my other devices. I have tried to reset the network connections and all that, but keeps happening.

Changing to my 2.4Ghz SSID is fine, but a lot slower.

[Howard56]

OP here, couldn't agree more. People said it's been fixed on this thread forever but that was not true for me. As a workaround, I replaced my Asus Ax88u router and haven't experienced the issue since. Some weird interaction because no other device had that issue. Simply made more sense to replace the router rather than the phone for me. 

[AR500]

I'm seeing constant WiFi connection drops on my S23U too, on the latest version (Dec 1, 2024 Security Patch). My router is a Deco X50, and the only thing that fixed it for me was changing DHCP to Static and setting MAC Address to Phone MAC, but the downside of doing this is noticeably increased battery drain, to the point where it's not even worth it (idle battery usage of 4% per hour). This kind of problem should never be seen on a flagship $1000+ phone!

[cfehlberg]

DO NOT APPLY JANUARY 2025 SECURITY UPDATE ON S23ULTRA. 
Brazil version: Im facing ultra slow speed on WIFI connection. Really terrible! Sometimes it gets less than 1mb/s. No way!

[casual1st]

I still have this problem.. Nothing mentioned in the post resolved the issue.