How to Fix WiFi Issues on Google TV and Chromecast: Slow Streaming and Connection Drops

Google TV devices—including Chromecast with Google TV, the Google TV Streamer, and Android TVs running the Google TV interface—are notorious for temperamental WiFi behavior. The most common complaints are constant buffering, streams that drop back to SD quality for no apparent reason, and the device fully disconnecting from the network every few hours. These problems usually aren’t caused by your internet plan being too slow; they’re caused by a mismatch between how Google TV handles WiFi and how your router is configured. Working through the steps below in order resolves the issue for the vast majority of users.

Why Google TV Devices Have WiFi Problems

Google TV and Chromecast hardware uses relatively modest WiFi radios. Older Chromecast generations were limited to 2.4 GHz only; newer models support 5 GHz but are sensitive to router features like fast roaming (802.11r), airtime fairness, and band steering that were designed for smartphones and laptops—not streaming dongles that sit stationary behind a TV. When any of these features behaves unexpectedly, the result is repeated disconnects, stubbornly slow speeds, or a device that refuses to stay on the faster 5 GHz band.

Step 1: Restart the Device and Your Router

Before changing any settings, perform a clean restart of both devices. Unplug the Chromecast or Google TV Streamer from power for a full 60 seconds—not just 10. Then unplug your router (and modem, if separate) for 30 seconds. Plug the modem back in first, wait for it to fully connect, then power on the router. Give the router two minutes to stabilize before powering the Google TV device back on. This clears stale DHCP leases and ARP tables that silently degrade performance.

Step 2: Check Signal Strength and Band

On your Google TV, go to Settings → Network & Internet and check the connected network. If the signal strength shows “Fair” or “Poor,” the device is too far from the router or blocked by too many walls. For reliable 4K streaming, Google recommends at least 25 Mbps throughput at the device—but even a 100 Mbps plan won’t help if the WiFi signal is weak. Moving the router closer, or adding a mesh node near the TV, is more effective than any software fix. See our guide on eliminating WiFi dead spots if coverage is the root cause.

Also confirm which band the device is connected to. If your router uses a single combined SSID (“Smart Connect”), the device may be placed on 2.4 GHz even when 5 GHz is available nearby. The next step addresses this directly.

Step 3: Disable Band Steering / Smart Connect

Most modern routers have a feature called Smart Connect (ASUS, NETGEAR) or Band Steering (TP-Link, Ubiquiti) that merges both bands under one network name and automatically assigns devices. The algorithm is designed for phones that move around; a stationary streaming stick doesn’t benefit and is often incorrectly assigned to 2.4 GHz.

The fix is to split your WiFi into two separate SSIDs—one for 2.4 GHz and one for 5 GHz—and manually connect your Google TV device to the 5 GHz network. On most routers this is under Wireless → Advanced or Wireless → Smart Connect. Disable Smart Connect, assign distinct names (e.g., HomeWiFi_5G and HomeWiFi_2.4G), and reconnect the Google TV to the 5 GHz SSID.

Step 4: Disable Fast Roaming (802.11r)

Fast Roaming—also called 802.11r or Fast BSS Transition—is a protocol that helps mobile devices quickly switch between access points in a mesh network. Google TV devices handle it poorly and often disconnect repeatedly when it’s enabled. This is one of the single most commonly reported fixes on community forums.

Disable it in your router’s wireless settings. On TP-Link Deco, look under More → Advanced → Fast Roaming. On ASUS routers, it’s under Wireless → Professional → Enable 802.11r Fast Roaming. On NETGEAR, check Advanced → Advanced Setup → Wireless Settings. Set it to disabled and retest your connection.

Step 5: Fix the 5 GHz Channel and Channel Width

Some routers auto-select Dynamic Frequency Selection (DFS) channels in the 5 GHz band (channels 52–144). Chromecast and Google TV devices have historically had trouble with DFS channels, especially when the router performs a radar scan and switches channels mid-stream. If your 5 GHz band is on a DFS channel, switch to a lower, non-DFS channel: 36, 40, 44, or 48.

Also check your channel width. If the 5 GHz band is set to 80 MHz or 160 MHz wide, try dropping it to 40 MHz. Wider channels are faster in theory but more susceptible to interference and cause more instability on streaming hardware with less capable radios. See our WiFi channel width guide for a deeper explanation of the trade-offs.

Step 6: Disable Airtime Fairness

Airtime Fairness is a router feature that allocates equal airtime to all connected devices regardless of their speed. This sounds fair, but it means a slow 2.4 GHz device can drag down every other device on the network—including your Google TV. On ASUS routers, airtime fairness is found under Wireless → Professional → Airtime Fairness. Disable it and retest. The improvement is most noticeable when you have a mix of older and newer devices connected simultaneously.

Step 7: Forget the Network and Reconnect

If the device connects but behaves erratically, a corrupted network profile is sometimes the culprit. On Google TV, go to Settings → Network & Internet, select your network, choose Forget, then reconnect from scratch by entering your password. This clears any cached IP or DNS configuration that may have become stale.

While you’re in network settings, also check whether a custom DNS server is configured. Some Google TV devices inherit a DNS override from the router or a previous setup. If you’re using a DNS-blocking device (like a Pi-hole) on your network, temporarily bypass it for the Google TV and see if stability improves.

Step 8: Update Google TV Firmware

Google periodically releases firmware updates that address WiFi stability bugs. Go to Settings → System → About → System Update (exact path varies by device) and check for pending updates. If a recent update introduced the problem, the Google TV community forums are a good place to verify whether others are experiencing the same issue and whether a fix has been released.

Step 9: Factory Reset as a Last Resort

If nothing above resolves the issue, a factory reset will wipe the device back to its out-of-box state and eliminate any software-level corruption. On Chromecast with Google TV: Settings → System → About → Factory Reset. On the Google TV Streamer, press and hold the button on the back of the unit for 10 seconds. You’ll need to sign back in and reconfigure your apps.

When to Use a Wired Connection Instead

If your TV has an ethernet port, using a wired connection bypasses every WiFi problem entirely. Google TV Streamer has a built-in ethernet port. Chromecast with Google TV (4K) supports ethernet via an official Chromecast Ethernet Adapter ($15–$20), which plugs into the power cable’s USB port. A wired connection delivers consistent throughput, zero interference, and the lowest possible latency—ideal for 4K HDR content. If your TV is near your router or a network switch, this is always the most reliable long-term solution. For devices that must stay wireless, working through the steps above should deliver a stable, fast connection. Run a speed test from another device on the same network to confirm your internet connection itself isn’t the bottleneck before blaming the TV.