How to clear cache in device companion apps

Problem

Companion app glitches due to stale cache or data.

Restart the affected device and confirm all power and cable connections are stable.
Check network settings and verify the device is connected to the correct WiFi or wired network.
Open the related setup app or device settings and repeat setup with updated credentials if needed.
Update device firmware/software from the official settings panel when available.
Test again with one device at a time to isolate whether the issue is device-specific or network-wide.

Move the device closer to the router for setup if the issue is wireless connectivity.
Try a different cable, port, or power outlet when hardware connectivity is involved.
Reset network settings only after noting current configuration details.
Compare device indicators or app error messages with official manual references.

Is this official support? No. This is independent general guidance.

Is there a guaranteed fix? No. Results vary by model, firmware, and local network conditions.

Guide topic: How to clear cache in device companion apps