Because a restart resets exactly one thing: the session. The player drops its connection, opens a new one and starts pulling segments again, which genuinely clears a jammed stream. What it does not do is free the memory an oversized channel list is holding, improve a congested wireless path, or add servers on the provider side. So the stall returns, often on the same interval, and the reader concludes that nothing works. The useful information is in the interval itself. A recovery that lasts minutes and repeats points at memory or a flaky path. A recovery that lasts hours points at an occasional session hang you can live with while you fix the underlying cause properly.

Player apps hold the entire visible channel list in memory alongside the video buffer. Above roughly 18,000 visible channels they become unstable, and on modest hardware the trouble starts sooner. Hiding groups you never watch is therefore a real fix with a mechanism behind it, not filler advice. Clearing the app cache belongs in the same category, because the app writes temporary stream data locally and a device near full storage cannot do that smoothly. IP4KTV carries 54,000+ channels, which is exactly why the hide-groups step matters here: a large catalog is useful to have and a poor thing to render all at once on a streaming stick.

Two of them are worth your time. A wired connection, or failing that the 5 GHz band, removes the retransmissions that arrive as late segments on a crowded 2.4 GHz channel; full signal bars do not rule this out, because retransmission is not signal loss. A public resolver removes delay from every segment request, which is small per request and compounds across a live stream. Beyond those two, most network advice is noise. Upgrading your plan rarely helps, since 4K needs 15-25 Mbps sustained and 1080p 5-8 Mbps, and almost every complaint arrives from a line that already clears both.

Provider capacity. When a service has sold more concurrent viewers than its servers support, everyone on it stalls at the same moment during a big event and recovers together afterwards. No buffer setting, resolver, cable or reinstall touches that, and any guide implying otherwise is selling an afternoon of pointless tinkering. The correct response is to change what you are measuring. Ask what uptime a service publishes: IP4KTV states 99.99%, which is about 53 minutes of downtime across a year, and offers a $5 24-hour trial so you can test the claim against a live event of your choosing rather than a sales page.

Change one thing, then watch something demanding for long enough to be sure. A live sports broadcast at a peak hour is the honest test; five minutes of a quiet channel at noon proves nothing. Keep a short log with the date, the change and the outcome, because faults that follow the clock will otherwise convince you three different fixes worked. If two changes go in at once and the stalling stops, you have not learned which one mattered, and the next time it returns you will start from zero again.