my s8 maxv ultra won't connect to wifi during setup, just keeps searching forever.

Diagnosis

The Roborock S8 MaxV Ultra utilizes a 2.4GHz wireless module for its primary communication and cloud synchronization. The "infinite searching" loop during setup typically occurs because the robot's network interface is unable to handshake with a router that is broadcasting a unified SSID (a single network name for both 2.4GHz and 5GHz bands). When the router attempts to "steer" the device toward the 5GHz band for better speed, the S8 MaxV Ultra fails to respond, causing the setup process to hang indefinitely. Additionally, this issue is frequently triggered by WPA3 security protocols or complex special characters (such as #, &, or @) in the WiFi password. The Roborock network stack can struggle to parse non-alphanumeric characters during the initial pairing phase, leading to a timeout. You can confirm this is a connectivity issue if the robot's voice prompt says "Waiting for network configuration" but the Roborock app remains stuck on the "Connecting to device" screen at 99% or continues to rotate the loading icon.

How to Fix It

To resolve the connection loop, you must isolate the 2.4GHz band and simplify the handshake process. Follow these exact steps:

1. Access your router's admin panel (usually via 192.168.1.1 or 192.168.0.1) and navigate to Wireless Settings.
2. Disable "Smart Connect" or "Band Steering." Manually rename your 5GHz network to something different (e.g., "HomeWiFi_5G") so that the 2.4GHz network has a unique SSID (e.g., "HomeWiFi_2.4").
3. Ensure the security protocol is set to WPA2-PSK (AES). If it is set to WPA3, the S8 MaxV Ultra may fail to authenticate.
4. Change your WiFi password to a string consisting only of alphanumeric characters (A-Z, 0-9). Remove all symbols, spaces, or emojis.
5. Power down the S8 MaxV Ultra and the Ultra Dock.
6. Move the Ultra Dock and the robot to within 5 to 10 feet of your router for the initial pairing. You can move the dock back to its permanent location once the connection is established.
7. On your smartphone, go to WiFi settings and manually connect to the 2.4GHz SSID you just created.
8. Press and hold the "Spot Clean" and "Dock" buttons on the robot simultaneously for 3 seconds until the voice prompt confirms "WiFi has been reset."
9. Open the Roborock app and initiate the "Add Device" process again, selecting the S8 MaxV Ultra from the list.

If That Didn't Work

• Perform a Hard Factory Reset: Use a paperclip to press the Reset button located under the top cover of the robot. Hold it for 5 seconds while the unit is powered on. This clears the cached network credentials and forces the device to broadcast its own internal setup hotspot (Roborock-xxxx).
• Use a Mobile Hotspot Bridge: Enable a mobile hotspot on a second smartphone using the same SSID and password as your home network. Place this phone next to the robot. If the robot connects to the hotspot, the issue is strictly your router's firewall or DNS settings (try changing your router's DNS to 8.8.8.8).
• Disable Firewall/MAC Filtering: Check your router's "Blacklist" or "MAC Filtering" settings. Some routers automatically block new devices that don't have a pre-approved MAC address. Ensure "Allow New Devices" is enabled in your security settings.
• Check VPN and Ad-Blockers: If you have a system-wide VPN (like NordVPN) or an ad-blocker (like AdGuard) active on your phone, disable them completely during setup. These services often intercept the local network packets required for the app to find the robot.

Heads Up

• Signal Dead Zones: The S8 MaxV Ultra has a high-gain antenna, but thick concrete walls or metal cabinets between the dock and the router can cause the connection to drop after setup. Consider a WiFi extender if the dock is far from the router.
• Firmware Updates: Immediately after successful pairing, check for a firmware update in the app. Early versions of the S8 MaxV Ultra software had known bugs regarding WiFi stability that are fixed in later releases.
• Power Cycle: If the robot loses connection in the future, do not reset the WiFi. Instead, turn the physical power switch on the side of the robot OFF for 10 seconds and then back ON to refresh the DHCP lease.