Qualcomm Atheros QCA9377 Wireless Adapter Issues

williamsconnor0

Prominent
Dec 30, 2017
3
0
510
I have an Acer Aspire E 15 Laptop which I got for Christmas. At first everything ran great. I had to wait for Windows to do a bunch of super long updates and then bam I was good to go. I downloaded Steam as well as a few games and could play them perfectly (although they were all offline games). Two days later I downloaded a few online ones and my connection was smooth. Then things went downhill.

The first thing that happened was I got a yellow triangle which stated that I was connected, but no internet access. I clicked on view available networks and something disturbing happened; xfinitywifi was changed to xfinidywifi and on my custom named network that was listed, the R's were changed to B's and instead of wifi it shows gifi. I was very confused, but didn't have time to react as it all shut down with the monitor and red x logo stating I no longer had internet. Immediately, I restarted my computer and was met with a lovely blue screen. I can't remember exactly the code but it was something along the lines of a thread not where it was supposed to be or something, and when I looked it up the description was a failing or corrupted hardware. The blue screen goes away, and I have wifi again. The names of the networks are normal again and I proceed to go back onto Steam and play a game with multiplayer. About 3 minutes in, my adapter loses connection, and can only find "xfinidywifi", my own connection nowhere to be seen. I restart again, get internet back, and 2 minutes later it happens again. Frustrated, I diagnose the connection and windows offers to uninstall and reinstall my adapter and I say yes. Doesn't work. I manually change the settings such as aggressiveness and wireless mode and such and nothing changes. Then it GETS WORSE. All of a sudden my adapter now gets a Code 10, and cannot start period. I go online and find a driver- newer than the one installed- and install it. Nothing changes. It has gone from (presumably) working fine, to working for 2 minutes, to a permanent Code 10. I am at my wits end and do not know what to do.

I have also rolled back my version of windows and used automatic update on my adapter, both with no changes. I am currently using an old dualband usb adapter and it worked instantaneously and I haven't had a single disconnection, but the fact that I JUST got this computer and that having a wired usb adapter hanging off my computer is so frustrating.

UPDATE: Windows did an essential security update or something like that and forced me to restart my computer. Every time I boot my computer I go into device manager to check if my adapter is working yet and it no longer has a code 10. I will be testing if it is actually working soon. this is right after my roll back of windows and uninstalling all updates. The driver it is currently using is also the one I manually installed from an unofficial qualcomm driver site which is supposed to be the most recent Windows 10 version, version 12.0.0.428.

UPDATE: The Qualcomm adapter still does not work. After about 2 hours in, the adapter shut off. I went into the device manager and it had disabled itself. When I tried to enable it, it refused. I restarted my computer and got another blue screen which said driver power state failure.
 
Solution
ACER 802.11ac wireless issues. My problem and solution may not be the same as yours. That said, I have TWO new Acer Aspire series notebooks. I have a modem from FIOS that is from perhaps 5-7 yrs ago. My other laptops work fine but the 2 new DL @ 100 kbs (this is terrible). A call to Acer was useless. Called FIOS....After 2 hrs on the phone she concluded that only the newest FIOS modem can connect with 802.11ac wireless card. Solution: They are sending a new modem.
well first thing I would do is call xfinity and get them to reset your router with a proper password, it looks like your router got hacked. Ie the name of SSID cannot change unless someone got in and changed it. Xfinity can fix that issue with a simple phone call.

for the rest of the problems I may suggest to get your laptop exchanged, or restore factory operating system and try again. but your issues sound like a motherboard problem


 

BuddhaSkoota

Admirable


Sounds like the perfect case for a clean Windows install, and if that doesn't work, warranty return/repair.

Understanding the eagerness to get things installed, I'd recommend making sure the system is stable before inundating it with too much software at once.
 

williamsconnor0

Prominent
Dec 30, 2017
3
0
510


Yes I was thinking of attempting to reset back to when I first got the laptop. I mean, it had to go online to download all of those updates so the Qualcomm adapter HAD to be working. As for the SSID names i will say that Xfinity (which changed to Xfinidy) was our neighbor's wifi and theirs as well as mine did not see a name change across all of my other devices except the laptop, and I have my SSID set to not broadcast and have a pretty strong password on it. Apart from that, I was considering taking it to a local shop that works on these kinds of issues. I actually job-shadowed there before and they definitely know their stuff.

 

williamsconnor0

Prominent
Dec 30, 2017
3
0
510


Yeah I'm totally fine doing a reinstall of everything. The only thing I installed so far was Steam and the Netgear driver for my dualband usb so there's not much to lose lol.
 

drpeterjstanton

Commendable
Feb 22, 2018
8
0
1,520


 

drpeterjstanton

Commendable
Feb 22, 2018
8
0
1,520
ACER 802.11ac wireless issues. My problem and solution may not be the same as yours. That said, I have TWO new Acer Aspire series notebooks. I have a modem from FIOS that is from perhaps 5-7 yrs ago. My other laptops work fine but the 2 new DL @ 100 kbs (this is terrible). A call to Acer was useless. Called FIOS....After 2 hrs on the phone she concluded that only the newest FIOS modem can connect with 802.11ac wireless card. Solution: They are sending a new modem.
 
Solution

kumar190304

Commendable
Aug 14, 2016
26
0
1,530
This Atheros QCA9377 is a shit and conflict with bluetooth on the laptop. Turn off your laptop Bluetooth and then wifi will work in full swing.
Try and let me know if it works.