A robot vacuum shows offline when its app can no longer reach it through your account, home Wi-Fi, and the maker's cloud, while the robot itself often still works. The same layers apply to a Roomba, a Roborock, or another brand. First check whether the robot powers on, responds to its buttons, and can start or return to the dock locally. If it can, work through the app, account, Wi-Fi, and saved network profile before reconnecting it, and keep a factory reset for last because it can remove maps, schedules, preferences, and account associations.

Key Takeaways

An offline badge in the app does not prove the robot itself has failed.

Compare local controls, another authorized phone, and any service notice before changing Wi-Fi.

A powered dock does not guarantee useful Wi-Fi coverage where the robot rests.

Rebooting is normally narrower than removing the robot or restoring factory settings.

Model-specific frequency support, buttons, offline functions, and reset effects must come from the manufacturer.

Use the device and app troubleshooting guide if you have not established whether the problem belongs to one app, one device, the home network, or an upstream service.

What does “robot vacuum shows offline” mean?

“Offline” usually means the app cannot currently reach the robot through the expected account and network path. It does not tell you which link failed. The robot might be asleep, discharged, off the dock, connected to an old Wi-Fi name, blocked from the cloud, assigned to another account, or simply absent from one phone’s stale app session.

Start with a small evidence table:

Observation	More likely layer	First check
Robot has no lights or response	Power, battery, contacts, or hardware	Dock power and local controls
Robot cleans from its own button but app says offline	App, account, cloud, or Wi-Fi	Another authorized phone and service status
Robot went offline after a router change	Saved network profile	SSID, password, security, and supported band
It appears offline only far from the dock	Coverage or roaming	Signal near the dock and access point placement
Every robot in the same account is unavailable	Account, app, or service	Sign-in and official service notice
One robot repeatedly disconnects	Robot, dock location, or local network	Cross-test location and supported reconnect flow

Record the exact model, app name, account, last successful task, time of failure, and any original error. Do not share a home map, Wi-Fi password, serial number, or account screenshot publicly.

Can the robot still work without the app?

Stand beside the robot before opening router settings. Confirm that the dock is plugged in, the cable is fully seated, and the robot is aligned with clean, dry charging contacts. Look for a normal charging response rather than assuming that a wall socket or dock light proves the robot is charging.

Then try only the local functions documented for the model:

Wake the robot and read any light, tone, or spoken error.
Press the normal clean or start control once.
If supported, ask it to return to the dock from nearby.
Check for a bin, brush, wheel, bumper, cover, or battery warning.
Let it charge before repeating a network test.

Some models can start a basic cleaning job while offline; others depend more heavily on the app for room selection, maps, schedules, or settings. A successful local task proves that the robot can perform at least one physical function. It does not prove that its Wi-Fi radio, account association, map sync, or cloud connection is healthy.

If the robot will not power on, charge, or respond locally, stop treating the problem as an app-only outage. Follow the exact model’s power and battery documentation or contact support. Repeated network resets will not repair damaged contacts, a failed battery, liquid damage, or a mechanical fault.

Is the problem limited to the app, account, or service?

Close and reopen the official app, then confirm that you are signed into the account that originally owns or shares the robot. Check whether the correct home, household, region, and robot are selected. Do not remove the robot merely because it is missing from a filtered room or another family member’s account.

If another authorized phone is available, compare the same robot there. These results are useful:

Offline on one phone only: app cache, permissions, account selection, or phone connectivity is more likely.
Offline on every authorized phone: robot Wi-Fi, home network, account association, or service is more likely.
Every product in the account is missing: sign-in or service scope deserves attention before robot resets.
App works on mobile data but not home Wi-Fi: the phone’s network path may be failing; this still does not prove the robot changed networks.

Check the manufacturer’s official status or support channel if the problem began suddenly and affects many devices. Avoid third-party “status” pages that ask for account credentials. Updating the official app is reasonable, but do not install an unofficial APK or configuration tool to recover a household device.

Does the dock have power and usable Wi-Fi coverage?

The dock is both a charging location and the place where many robots spend long periods. It should have stable power, safe clearance, and useful Wi-Fi coverage. A robot can navigate into a weak area and fail to report progress, while later reconnecting near an access point.

Test coverage at the dock with an ordinary authorized phone, but treat signal bars as a rough comparison, not a measurement of the robot’s radio. If the dock is behind metal furniture, inside a cabinet, beside a large appliance, or at the edge of a mesh node’s coverage, temporarily test a safer documented location without blocking the robot’s approach.

iRobot’s setup guidance says to power the dock, place it on a level surface near the router during setup, select a compatible network, and use Product Settings > Wi-Fi Settings > Reconnect or Change Product Wi-Fi in the iRobot HOME app when an already configured robot cannot connect. It also lists frequency support by model: most recent Roomba models handle both 2.4 GHz and 5 GHz, while older families such as Roomba Essential, i1–i5, and the 800 and 900 series use 2.4 GHz only.［1］

Do not permanently weaken Wi-Fi security, disable the firewall, or split a working mesh solely on generic advice. Consult the exact robot and router documentation. The Wi-Fi band guide explains why a band name alone does not guarantee compatibility or coverage.

What changed just before the robot went offline?

Recent changes often identify the shortest repair path. Ask whether anyone:

replaced or reset the router;
changed the Wi-Fi name, password, security mode, or guest network;
moved the dock or a mesh node;
restored the robot, transferred ownership, or changed household accounts;
updated the app, phone operating system, router firmware, or robot firmware;
enabled client isolation, access control, a schedule, or a device block;
unplugged the dock during cleaning or maintenance.

If the SSID or password changed, use the manufacturer’s reconnect or change-network flow. Do not rename the whole home network again just to match an uncertain memory. If the router was replaced, confirm that its security and band settings are supported by the exact robot.

For a robot that was never successfully set up on this network, use the separate smart-home Wi-Fi setup guide. This article assumes the robot previously worked and later appeared offline.

How should you reboot and reconnect safely?

Preserve evidence first: note the robot name, model, account, maps that matter, schedules, integrations, and the last error. Then use the narrowest restart sequence:

Close and reopen the official app.
Confirm the phone itself has a stable connection.
Reboot the robot using the exact model instructions.
If the entire home network is unstable, restart the router through its normal procedure and wait for it to finish.
Recheck the robot before removing it from the account.
Use the app’s supported reconnect or change-Wi-Fi flow if the saved network changed.

iRobot states that a reboot is safe and does not delete maps, schedules, or preferences, while button timing varies across model families.［2］ That is why a generic “hold two buttons for 20 seconds” instruction is unsafe: on another model it may do nothing or invoke a different operation.

After reconnecting, test in stages. Confirm that the robot becomes visible, start one small local job, verify that it reports progress, ask it to dock, and check that an existing map or schedule still appears. Do not immediately run a whole-home mission while you are still establishing whether state synchronization is stable.

When is a factory reset justified?

A factory reset is justified only when the manufacturer’s exact support flow calls for it, ownership genuinely needs to change, or narrower power, account, service, Wi-Fi, reboot, and reconnect checks have failed. Read the reset screen and model documentation before confirming.

iRobot distinguishes rebooting from factory reset: an app-based factory reset removes the robot from the account and erases cloud data, settings, preferences, time zone, smart-speaker associations, and customized maps unless the model can save them first, while a manual button reset keeps cloud data and account associations.［3］ Back up or document what can be recovered, and make sure you can sign into the owner account again.

Escalate instead of resetting when the robot will not charge, smells hot or burned, has liquid damage, reports a persistent hardware code, repeatedly loses power, or belongs to a landlord, workplace, or another account owner. If a reset would destroy the only useful map or access record, clarify recovery options with the manufacturer first.

Why does a Roomba or Roborock keep going offline?

Brand searches such as “Roomba offline” or “Roborock device offline” lead back to the same layers, but each maker uses its own app, band support, and reset effects. Use the notes below to find the right page in your own model’s documentation, not as steps for another brand.

Brand	What to check first when it keeps dropping
Roomba (iRobot HOME app)	Whether the model is one of the older 2.4 GHz-only families, the app’s reconnect path after a router or password change, and a reboot with the model’s own button timing
Roborock	The Wi-Fi band that model supports and the phone permissions the Roborock app requests during reconnection
Other brands, including eufy RoboVac	The maker’s own app, reconnect flow, and reset warning; do not reuse iRobot or Roborock button sequences

Roborock’s offline guidance, for example, describes model-specific Wi-Fi limits and app permissions rather than a universal robot-vacuum procedure.［4］ If a robot keeps going offline only at the far end of the home, return to the dock-coverage checks. If it drops everywhere on a supported network, record the times and errors before contacting support.

Summary

An app’s offline badge identifies a failed communication path, not a failed vacuum motor. Confirm local power and controls, compare another authorized phone and official service status, inspect dock coverage, and review recent network or account changes. Reboot with model-specific instructions, then use the supported reconnect flow. Keep factory reset last because it can remove maps, schedules, preferences, integrations, and account associations.

FAQ

Why is my robot vacuum offline but still cleaning?

Local cleaning and cloud control are separate functions. The robot may run from its own button while its Wi-Fi, account, app session, or cloud path is unavailable.

Does a robot vacuum need 2.4 GHz Wi-Fi?

Some do, while others also support 5 GHz. Check the exact model specification for robot vacuum 2.4 GHz Wi-Fi support; do not apply one frequency rule to every robot.

Should I move the dock closer to the router?

It is a useful temporary comparison when coverage at the dock is weak. Keep the dock on a safe level surface with the manufacturer’s required clearance and do not block its approach path.

Why is my robot vacuum offline after changing routers?

It may still hold the previous Wi-Fi name, password, security settings, or network association. Use the manufacturer’s change-network or reconnect flow.

Can I remove and add the robot again?

Only after checking account selection, service state, power, coverage, and supported reconnection. Removal may affect ownership, maps, schedules, and integrations.

Will rebooting delete my maps?

A normal reboot should not on models whose manufacturer explicitly says it preserves data. Use the exact model instructions and do not confuse reboot with factory reset.

Will a factory reset delete schedules and account links?

It can. Effects differ by model and reset method, so read the manufacturer’s warning and preserve recoverable information before confirming.

When should I contact support?

Contact support when the robot cannot power on or charge, reports a hardware fault, repeatedly drops offline on a known-good supported network, or cannot be recovered without risking important maps or ownership data.

Sources

iRobot Support - Setting up your Wi-Fi Connected Robot with the iRobot HOME App — https://homesupport.irobot.com/articles/en_US/Knowledge/17734
iRobot Support - Rebooting Your Robot: All Roomba and Braava Models — https://homesupport.irobot.com/articles/en_US/Knowledge/9087
iRobot Support - Why factory reset your robot and how to do it? — https://homesupport.irobot.com/articles/en_US/Knowledge/9047
Roborock Support - Wi-Fi connection fails or robot shows as offline in app — https://support.roborock.com/hc/en-us/articles/360035369812-What-should-I-do-when-Wi-Fi-connection-fails-or-robot-shows-as-offline-in-app

Sources checked 4 October 2026.

Robot Vacuum Shows Offline? How to Fix Roomba and Roborock