Likely:

• Wi-Fi signal weak where you sit; reposition router or add an AP.
• Upstream bandwidth saturated by backups or streaming.
• Outdated webcam/NIC drivers causing glitches.
• Browser hardware acceleration conflicts.
• QoS not configured on the router.

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What it might be (likely causes)

• Weak or inconsistent Wi‑Fi where you sit
  Marginal signal → retries → frozen video. Move the router, add an access point, or steer your device to 5 GHz. Placement ideas: /posts/kirksville-wifi-dead-zones/ and small‑town router defaults: /posts/router-settings-small-town/