New
#1
Laptop downloads slow when not plugged in
My brand new laptop downloads slow when I unplug it and run on battery power, and then it stays slow even if I plug it back in.
When I plug in and reboot my brand new laptop, and run speedtest.net, I consistently get numbers in the 17 Mbps range. When I unplug it and run on battery power, I consistently get numbers in the 0.6 Mbps range. The upload speed doesn't change whether on battery or plugged in.
Even stranger, when I plug the laptop back in, then run speedtest, I continue to get download numbers in the 0.6 Mbps range. If I put the system to sleep or hibernate, wake it, and run speedtest, the speed remains in the 0.6 Mbps range.
This was a recently purchased floor model Lenovo E545 running Win7 Pro (x64).
I looked in the Control Panel - Power Settings and notice that there are two plans: Energy Saver and Power Saver (what's the difference between saving energy and saving power?).
In the Power Options Advanced Settings, there is a setting for Wireless Adapter Settings. I changed it to Maximum Performance when on battery. But still I'm getting 0.6 Mbps download.
Why is my download speed so slow after I unplug the system? How do I fix it?