This device is incredibly sluggish!
This device is incredibly sluggish!
Checked the feedback, but it doesn’t specify a return or exchange requirement.
It seems like you're feeling a bit discouraged. There are simple tests we've covered, but it looks like you're not focusing on them. Usually, you should try to fix things first before swapping parts out. If that's your plan, go for it.
You can switch to another channel and check the performance. If needed, update the firmware. The firmware change I found on your model alters several router features. You might need to do this even if you pick a different WiFi channel. Consider using a WiFi analyzer or another app to scan other channels people are using.
Return to your previous router model (which performed better) and upload the file, after which you can reinstall the devices again.