Hi, I've had a very helpful reply from a contributor (thanks Regedit32) to a Windows 10 forum. Early days yet but the suggested action appears to have resolved the problem. My laptop has been running on battery for nearly 2 hours and the wifi connection has not dropped out. Previously, wifi would have dropped within 10 secs of going from mains to battery. Here's what worked for me: — Wireless Adapter Settings — Power Saving Mode —Setting: A setting will be present here In my case, the setting prior to change was Medium Power Saving. That appears to have been the culprit. Good luck!
When I remove charger all wifi signals lost. I need to plug it back in and restart. Sometimes troubleshooting works and points to a fix in network adapter but only aftter mains power restored. Any suggestions? I tried to do Dell Diagnostics but after downloading program then installing Dell System Detect nothing happens (Windows 10).
Inspiron 15R SE 7520 - no wifi available when I switch to battery power