“Obtaining IP Address” timeout: Reboot router/modem. Check DHCP pool not exhausted.
DNS errors: Set **Primary DNS: 1.1.1.1**, **Secondary: 8.8.8.8** (Manual DNS in step 7).
WPA3 / Wi-Fi 6 routers: PS3 only supports up to WPA2-AES / 802.11g. Set router to **mixed WPA2/WPA3** or **WPA2-only** mode; disable 802.11ax (Wi-Fi 6) on 2.4 GHz band.
Firmware: Update PS3 via Settings → System Update (or USB offline update).
Launch 20 GB model (CECHB01): No Wi-Fi. Requires **USB Wi-Fi adapter** (802.11b/g, e.g., Linksys WUSB54GC) or wired Ethernet.
If issues persist, visit PlayStation Support with your error code (e.g., 80710102, 80028EA5).