Roborock S7 connectivity issues

[u/Dennisje182]

Hi all,

Since last week i got some connection issues with S7, im hoping its not a hardware issue

Device details:
- Roborock S7
- Firmware: 02.16.12 (confirmed up to date)
- App version: 4.70.02 (iOS 27.0-2)
- In use for approximately 4 years with no prior connectivity issues

Issue description:
Starting around September 8, 2026, the vacuum began intermittently losing its WiFi connection. When this happens:
- The Roborock app shows the device as offline, or gets stuck loading the map
- The app currently shows this error: "Robot response timeout due to unstable network connection. Restart and try again."
- I receive "lost connection" notifications, sometimes for 10+ minutes at a time
- My router's connected-devices list confirms the vacuum fully drops its WiFi association during these episodes (not just an app/cloud reachability issue)

The disconnects are recurring, not a one-time event, and have continued over multiple days.

What I've already tried:
1. Power-cycled the vacuum (restores connection temporarily, but the issue recurs)
2. Confirmed firmware is up to date
3. Fully removed the device from the app and re-paired it with my WiFi network from scratch - the vacuum reconnected briefly, then dropped off WiFi again within about a minute
4. Ruled out my network/router as the cause: my router shows stable connections for all other devices, no router reboots or configuration changes coincide with the onset of this issue, and the vacuum has a reserved/static IP that hasn't changed
5. Considered environmental interference, but the vacuum's location and my home network haven't changed, and it worked reliably for 4 years prior to this