Hello, the package linux-firmware - 1.169.3 doesn't fix the bug on 17.10 for 
me... quite the reverse
The wifi connexion was still very unstable, downgraded until i switched 
yesterday to the "kvalo Firmware patches" : no more errors like "ath: phy0: DMA 
failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02000020 
DMADBG_7=0x0000a400" in dmesg and high speed connection.
I had no pb before on 17.04

ubuntu 17.10 (from 17.04) on Dell XPS8700 with Qualcomm Atheros AR9485
Wireless Network Adapter

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  QCA6174 stops working on newer kernels after second group rekeying

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