roomba 694 won't connect to wifi, the indicator just blinks. how do i fix it?

Diagnosis

The blinking Wi-Fi indicator on the Roomba 694 signifies that the robot's internal wireless module is in "pairing mode" but cannot establish a handshake with your router. This is typically caused by a synchronization timeout between the robot's 2.4GHz radio and the network's DHCP server. If the light blinks rapidly, it is actively searching; if it blinks slowly, it has timed out or encountered a credential error. The root cause is often a mismatch in network frequency or a cached network profile. The Roomba 694 is strictly a 2.4GHz device. If you have a modern "Mesh" system or a dual-band router with "Smart Connect" (which merges 2.4GHz and 5GHz into one SSID), the robot often fails to negotiate the connection because the router attempts to force it onto the 5GHz band, which the hardware cannot support. You can confirm this by checking if other 2.4GHz-only smart home devices are also struggling to connect or by checking your router's connected devices list to see if the Roomba's MAC address is appearing as "unauthorized" or "timed out."

How to Fix It

To resolve the connectivity loop, you must perform a hard hardware reset to clear the network cache and then re-initiate the pairing sequence using a dedicated 2.4GHz channel.

1. Perform a Hard Reboot: With the Roomba on the Home Base, press and hold the DOCK and SPOT buttons simultaneously for exactly 10 seconds. Release them once the light ring shuts off and you hear a descending confirmation tone.
2. Power Cycle the Router: Unplug your wireless router from the power source for 30 seconds, then plug it back in. Wait 5 full minutes for the network to fully stabilize before attempting to reconnect the vacuum.
3. Prepare the Mobile Device: Ensure your smartphone is connected to the 2.4GHz band of your Wi-Fi. If your router uses a single name for both bands, temporarily disable the 5GHz band in your router settings (usually found under Advanced Wireless Settings > Dual Band Selection).
4. Initiate App Pairing: Open the iRobot Home App. Select "Add a Product" and choose the Roomba 600 series. Follow the prompts to put the robot back into pairing mode (the Wi-Fi light should begin blinking).
5. Enter Credentials: Carefully enter your Wi-Fi password. Note that the Roomba 694 is case-sensitive; ensure there are no trailing spaces at the end of the password string.
6. Final Handshake: Keep your phone within 3 feet of the robot until the Wi-Fi indicator turns solid white, confirming a successful cloud connection.

If That Didn't Work

• Separate Your SSIDs: If you have a dual-band router, rename your 2.4GHz network to something distinct (e.g., "HomeWifi_2.4G"). Connect your phone to this specific network and then attempt the pairing process again. This prevents the robot from getting "confused" by the 5GHz signal.
• Disable AP Isolation: Log into your router's admin panel (usually 192.168.1.1 or 192.168.0.1) and ensure "AP Isolation" or "Guest Network Isolation" is turned OFF. If this is enabled, the robot can connect to the internet but cannot communicate with your phone on the same network.
• Change Security Protocol: Ensure your router is using WPA2-AES encryption. The Roomba 694 may struggle to connect to older WEP security or the very newest WPA3 standards. Switching the security mode to "WPA2/WPA3 Mixed Mode" often solves the handshake failure.
• Reset Network Settings: If the robot was previously connected to a different network, it may be holding onto old lease data. Perform a full factory reset by holding the CLEAN button until the light ring rotates, then repeat the reboot process mentioned in the FIX section.

Heads Up

• Signal Strength: Ensure the Home Base is placed in an area where your phone shows at least three bars of Wi-Fi signal. Metal furniture or thick concrete walls between the router and the Home Base can cause the blinking indicator to return intermittently.
• VPN Interference: Disable any active VPNs or Ad-Blockers (like NextDNS or Pi-hole) on your smartphone during the setup process, as these can block the local discovery packets used to find the robot.
• Firmware Updates: Immediately after a successful connection, check the app for a firmware update. Connectivity bugs are frequently patched via OTA (Over-the-Air) updates that stabilize the wireless radio.
• Battery Level: Never attempt a Wi-Fi pairing sequence if the battery is below 20%. The robot may drop the connection to prioritize power for the motors, leading to a failed pairing.