I have recently upgraded my network from 300 to Fiber network. All mobile devices work well on Fiber environment with high speed, but two of my desktops work even worse. I have tested the speed on my desktops. they are all around 45 Mbps, which I don't think is correct. I have also bought new wireless USB adaptor with better speed and technology. But this didn't work either. I am wondering what caused this and a possible solution. Thank you!
Thanks for your response. My desktop connects to a wireless USB adapter, then to the router. The internet speed is way low for my desktop (40 Mbps), while my laptop, iPad, and cellphone do not have problems (600 to 800 Mbps). That is why I figured maybe the wireless USB adapter does not compatible with the Fibre router; then I changed with a better wireless adapter, but the problem is still there. I can't figure our more. Thanks for help again.
The phones, laptop and iPad all likely have much faster wifi built in. Wireless USB adapters are typically weaker than if you had a built in or PCIe wifi card. What do you call a better adapter? 40mbps sounds like an old 802.11n adapter.