Fedora 22 WiFi (Qualcomm Atheros AR9485)

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I'm having some trouble today with my default WiFi adapter (Qualcomm Atheros AR9485).

Well, what's happening is the following: suddenly I got disconnected of AP and when I checked the list of APs available to reconnect, of 15 APs near my house, I can only see 3 and plus, I own two of them. I'm sitting near the router and the signal is WEAK for both routers in my house. I can connect to the AP and use it, but I can't walk one meter away without getting disconnected automatically.

$ uname -r 
4.2.6-201.fc22.x86_64

$ lspci |grep Network   02:00.0 Network
controller: Qualcomm Atheros AR9485
Wireless Network Adapter (rev 01)

$ lsmod |grep ath
ath9k                 126976  0
ath9k_common           36864  1 ath9k
ath9k_hw              458752  2 ath9k_common,ath9k
ath                    28672  3 ath9k_common,ath9k,ath9k_hw
mac80211              700416  1 ath9k
cfg80211              536576  4 ath,ath9k_common,ath9k,mac80211

Is there any known issue? I can provide more information as requested in order to sort out this problem.