Hi,
in morning i had left my PC in perfectly working condition but in the evening when i checked my wifi router was blasted (don't know why) & i had missing wifi & network adapters under device manager.
I have solved wifi issue by installing acer support drivers hence my internet connectivity is back but i am not able to use ethernet port.
Apart from this what i tried before posting to forum:
- removed RAM multiple times
- changed RAM to different socket
- removed battery & plugged again
- tried installing network driver from intel download center but error popup saying "no network adapter found."
- re-installed bios drivers
- visited Acer support website & tried installing LAN & WLAN drivers. Though i got little success here . my wifi started working
- re-fresh installation of window after watching PC health report
After all this sometimes post restart only ethernet icon shows near time point (right bottom) with red cross marked. clicking on that shows nothing (not even wifi). Again restarting solves this issue most of the times.
My laptop was wired through ethernet port when my router blasted. though my laptop was on hibernate mode. I had to replace my wifi router to get the internet working. Apart from this my internet service provider was saying that his 5-6 switches were also blown. He had to replace all of them to get the internet service started. I can only guess that it was due to electricity fluctuation. Rest you all people are expert & guide me better.
Device manager screenshot
Thanks
Balvinder