Hi guys,
There are 5 x Acer Aspire 372-t laptops in our business and each of them have Wi-Fi issues.
The devices will loose WLAN connection frequently, EVENTVWR does not provide any information regarding driver failure and other events do not relate which has not helped me troubleshoot the problem.
4/5 laptops have been upgraded to BIOS Version 1.11 - only one laptop remains on v1.06. That user (Laptop 1) has not reported any Wi-Fi issues (TBC) and is on an older BIOS. I wanted to roll back a users laptop from v1.11 but was met with "The version of ROM file is not newer than that of BIOS". the connection will randomly drop out, the Wi-Fi settings will be greyed out
| Tablet | Issues | BIOS Version | Windows Build | Updates Needed | Drivers | ChangeLog |
| Laptop 1 | No issues | 1.06 | 14393 | None | BIOS outdated DisplayLink Graphics driver outdated | No changes made |
| Laptop 2 | Not in-use | |||||
| Laptop 3 | Wi-Fi drop outs | 1.11 | 10586 (Build 1511) | Anniversary Update needed | BIOS Up-to-date Atheros Qualcom driver up-to-date User does not use Display Link Dock | |
| Laptop 4 | Wi-Fi drop outs | 1.11 | 14393 | None | BIOS Up-to-date Atheros Qualcom driver up-to-date DisplayLink Graphics driver outdated | Applied fix for Build 14393 (1607) update issue and ran Windows Updates |
| Laptop 5 | Wi-Fi drop outs | 1.11 | 10586 (Build 1511) | Anniversary Update needed | BIOS Up-to-date Atheros Qualcom driver up-to-date DisplayLink Graphics driver up-to-date | [05/04/17] - Upgraded to new Display Link Graphics Driver |
Drivers used:
Atheros QCA61x4A - The Wi-Fi driver used is from the Acer site
Scenareo #1 - Whilst user was in a meeting this morning, Laptop 4 dropped it's Wi-Fi connection. Airoplane mode was enabled and would not toggle off. WIthout rebooting, the Atheros driver was re-installed and the airoplane mode option was resolved, but no wi-fi connections were listed and the option to toggle Wifi on is greyed out. This is resolved after a reboot.
The user initially reported that when he resumed from sleep and powered the laptop on from home, he would not be able to see his own Wi-Fi until he fully rebooted the laptop. It then resolved itself.