I’m out of ideas here.
Almost every evening my Wi-Fi speed falls apart. During the day I usually get 200–300 Mbps over Wi-Fi, but at night the 5 GHz network can drop to basically nothing. Sometimes speed tests don’t even finish.
The weird part:
-Ethernet works fine.
-2.4 GHz seems usable.
-Only 5 GHz becomes painfully slow.
-During the day, everything is normal again.
I’m using the ISP-provided gateway. I’ve rebooted it, separated 2.4 GHz and 5 GHz into different SSIDs, and tested from the same room as the router. Still happens mostly in the evening.
What else should I check?
First thing I’d do is check what’s happening with the 5 GHz channel when the slowdown happens. Run NetSpot in the evening, not only during the day. Look at nearby networks, channel overlap, channel width, and whether your gateway is sitting on a busy 5 GHz channel. Sometimes the channel looks fine at noon, then everyone gets home and the air gets crowded.Also compare signal and speed right next to the gateway vs the problem room. If 5 GHz is bad even near the gateway while Ethernet is fine, that points more toward Wi-Fi/channel/router behavior than the ISP line itself.
@Circuit_Breaker_4 I found out the ISP gateway doesn’t let me manually pick the 5 GHz channel anymore. It’s all “managed automatically” through their app/cloud thing. I can split the bands, but I can’t actually choose the channel. So even if I see something I want to change, I basically can’t change it.
Anyone who knows what an SSID is will eventually hate the ISP gateway. It’s a law of nature. Bridge mode + your own router is probably the move. So stop putting up with it, just buy your own normal router and don’t embarrass yourself.
@EnvironmentalCup4452 Yes, that’s probably exactly what I’ll do.