Chromecast TV - Frequent WiFi Client disconnection
My Chromecast TV (Google TV) is frequently dropping from the network. The disconnects are confirmed via the device UI and the Deco app (client shows as "Offline"). This behavior started immediately after migrating from a Nest WiFi Pro setup to a TP-Link Deco mesh. Other stationary clients (LG TV) on the same node remain stable.
Troubleshooting Performed:
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Static IP/DHCP: Suspected a conflict due to frequent IP changes. Assigned a DHCP Reservation in the Deco app. Issue persists.
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Connection Preferences: Locked the Chromecast to the Main Deco (physically closest).
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Tested Preferred Band: 5GHz, then reverted to Auto. No improvement.
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DNS Isolation: Disabled Pi-hole to rule out blocking/timeout issues; disconnects continued.
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Comparative Analysis: An LG TV in a similar location remains connected 100% of the time with Connection Alerts enabled.
Observations & Questions:
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DHCP Lease Time: I’ve noticed frequent renewals. Is there a way to modify the DHCP lease duration in the Deco UI/App? Options seem very limited.
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Logs: Is there a way to access the raw system or WiFi interface logs (syslog) for the Deco units to see the deauthentication reason codes?
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Compatibility: Are there known issues with Chromecast and Deco? Power Saving, Fast Roaming etc? I know some older IoT devices used to run into this issue. Is there some way to confirm this with specific models of Chromecast? BTW I didn't run into this issue with my Nest WiFi Pro
