Originally published at: http://www.howtogeek.com/180235/how-to-troubleshoot-wireless-router-problems/
Are you having a problem with your Internet connection or Wi-Fi? Whatever the problem — from a flaky connection to Wi-Fi troubles or even no access to the Internet at all — some router troubleshooting could fix things.
You missed one option that has worked twice for me, now...
I had a flakey wireless NIC on my desktop PC, and it was not just crashing that PC's connection to the router, but the entire router would freeze up. (No traffic would pass to the Internet from the wireless OR the wired side.)
I turned off the WiFi adapter on that computer and hooked it up with a network cable... the problems magically went away.
This has actually happened two me twice now, on 2 different PC's with 2 different routers. The other PC actually fixed this problem with new drivers, but it's apparent that WLAN tech is not as mature as the industry would like us to believe.
I think that depends on your hardware and your house, how much interference there is, etc.
A lousy Wi-Fi adapter is definitely the worst, and combined with a low-power router, it's all bad. But when you're doing 802.11ac everywhere, you can get some serious performance out of your Wi-Fi network.
Oh, there's no doubt that it can work great when it's working... but when a bad adapter is capable of crashing a router, even the wired side, then that tells me there are still serious software bugs in the router's firmware. At the very worst case, some sort of watchdog timer ought to have kicked in and forced a hardware reset.
It'll get better, though... I tested an AC router with beamforming, and that performed VERY well. It's just too bad that the firmware crashed on the 2.4 side whenever I entered a WPA passphrase that had a space in it.
Then there was the failed firmware update on another router... I simply tried to upload the latest firmware, and the thing bricked.
On the bright side, after buying a gigabit switch and string more Ethernet cable (something I was trying to avoid), my current setup screams. Sometimes, that's how you fix your wireless problems: wire it.
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