you will need to provide preliminary data and details in order for anyone to help you here. No one has the crystal ball so they don't know what you have.
Pls post the output of the following commands (just run it in your shell):
lspci -nn | grep -i net;lspci -k;sudo lshw -C network;lsmod;iwconfig;ifconfig;sudo iwlist scan;uname -r -m;cat /etc/network/interfaces;nm-tool;sudo rfkill list
Thanks for providing the data.
So this is your wireless devise
03:00.0 Network controller: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter (rev 20)
Subsystem: Lite-On Communications Inc Device 0804
Kernel driver in use: ath10k_pci
And these are modules loaded to kernel for such device:
ath9k_common 36864 1 ath9k
ath9k_hw 471040 2 ath9k_common,ath9k
ath 32768 4 ath9k_common,ath9k,ath10k_core,ath9k_hw
mac80211 733184 2 ath9k,ath10k_core
cfg80211 548864 5 ath,ath9k_common,ath9k,mac80211,ath10k_core
As you can see there are 2 different versions and they are conflicting with each other of course (kernel doesn't know which one to use exactly unless you don't take one of them off).
So I am not sure what drive you have installed. If you remember the version of drive and kernel module you installe then all you have to do is to remove the previously installed kernel modules and blacklist them in order to make sure they don't load again during the boot time.
Alternative, if you don't know which one you installed and which one was already there, I'd suggest to clean all of the moduls and re-install the new one. but you still need to blacklist the old one because it will load after reboot of the system again.
As you can see from the snippet here:
wlp3s0 Scan completed :
Cell 01 - Address: 28:28:5D:F3:40:48
Frequency:2.412 GHz (Channel 1)
Quality=40/70 Signal level=-70 dBm
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
18 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
0: acer-wireless: Wireless LAN
Soft blocked: no
Hard blocked: no
your wireless is working perfectly but as I said the modules are conflicting with each other, so you need to remove the oldest one.