I can understand almost none of my dmesg log output, but this is one message I keep seeing, which I think is related to the bigger issue of my Wifi cutting out every minute or so: [ 6170.340618] cfg80211: Calling CRDA for country: US[ 6170.346573] cfg80211: Regulatory domain changed to country: US[ 6170.346580] cfg80211:  DFS Master region: FCC[ 6170.346582] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)[ 6170.346588] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 3000 mBm), (N/A)[ 6170.346591] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz), (N/A, 1700 mBm), (N/A)[ 6170.346595] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz), (N/A, 2300 mBm), (0 s)[ 6170.346599] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 3000 mBm), (N/A)[ 6170.346602] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)What does this mean? Is this a bad thing? If so, how can I fix it? 
What are CRDA regulatory domains, and why does my Wifi card keep trying to set them every minute or so?
wifi