我一直在尝试将 Snappy Core 16 映像与 Raspberry Pi 3 一起使用。系统启动后，能够扫描 WiFi，但当我尝试关联时，它会在 66% 处挂起（即使它记住了设置，并在保存配置后关联，情况也是如此）。我看到有人提到问题与 WiFi 模块的电源管理有关，但考虑到它是 Snappy，更改网络配置以禁用此功能似乎不是一件简单的事情。
这是我的特定 WiFi 电源管理吗？（AirPort 802.11ac）
以下是内核的相关内容：
Apr 29 04:28:29 localhost kernel: [ 16.000108] brcmf_cfg80211_reg_notifier: not a ISO3166 code
Apr 29 04:28:29 localhost kernel: [ 16.009258] cfg80211: World regulatory domain updated:
Apr 29 04:28:29 localhost kernel: [ 16.009275] cfg80211: DFS Master region: unset
Apr 29 04:28:29 localhost kernel: [ 16.009284] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
Apr 29 04:28:29 localhost kernel: [ 16.009299] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
Apr 29 04:28:29 localhost kernel: [ 16.009311] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
Apr 29 04:28:29 localhost kernel: [ 16.009324] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
Apr 29 04:28:29 localhost kernel: [ 16.009339] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
Apr 29 04:28:29 localhost kernel: [ 16.009354] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
Apr 29 04:28:29 localhost kernel: [ 16.009367] cfg80211: (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
Apr 29 04:28:29 localhost kernel: [ 16.009379] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
Apr 29 04:28:29 localhost kernel: [ 16.009391] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
Apr 29 04:28:29 localhost kernel: [ 19.243991] audit: type=1400 audit(1493440107.711:2): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/snapd/snap-confine" pid=1062 comm="apparmor_parser"
Apr 29 04:28:29 localhost kernel: [ 19.245434] audit: type=1400 audit(1493440107.715:3): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/snapd/snap-confine//mount-namespace-capture-helper" pid=1062 comm="apparmor_parser"
Apr 29 04:28:29 localhost kernel: [ 19.497100] audit: type=1400 audit(1493440107.963:4): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/sbin/dhclient" pid=1061 comm="apparmor_parser"
Apr 29 04:28:29 localhost kernel: [ 19.500015] audit: type=1400 audit(1493440107.967:5): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=1061 comm="apparmor_parser"
Apr 29 04:28:29 localhost kernel: [ 19.502673] audit: type=1400 audit(1493440107.971:6): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-helper" pid=1061 comm="apparmor_parser"
Apr 29 04:28:29 localhost kernel: [ 19.505159] audit: type=1400 audit(1493440107.971:7): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/connman/scripts/dhclient-script" pid=1061 comm="apparmor_parser"
Apr 29 04:28:29 localhost kernel: [ 19.594047] audit: type=1400 audit(1493440108.063:8): apparmor="STATUS" operation="profile_load" profile="unconfined" name="snap.core.hook.configure" pid=1080 comm="apparmor_parser"
Apr 29 04:28:29 localhost kernel: [ 20.668611] brcmf_add_if: ERROR: netdev:wlan0 already exists
Apr 29 04:28:29 localhost kernel: [ 20.684127] brcmf_add_if: ignore IF event
Apr 29 04:28:29 localhost kernel: [ 20.704243] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
Apr 29 04:28:29 localhost kernel: [ 20.704281] brcmfmac: power management disabled
Apr 29 04:28:29 localhost kernel: [ 20.711930] cgroup: new mount options do not match the existing superblock, will be ignored
Apr 29 04:28:29 localhost kernel: [ 21.005663] brcmf_add_if: ERROR: netdev:wlan0 already exists
Apr 29 04:28:29 localhost kernel: [ 21.020429] brcmf_add_if: ignore IF event
Apr 29 04:28:29 localhost kernel: [ 21.139726] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
Apr 29 04:28:29 localhost kernel: [ 21.140181] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
Apr 29 04:28:30 localhost kernel: [ 21.778844] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
Apr 29 04:28:30 localhost kernel: [ 21.830572] cfg80211: Regulatory domain changed to country: US
Apr 29 04:28:30 localhost kernel: [ 21.830597] cfg80211: DFS Master region: FCC
Apr 29 04:28:30 localhost kernel: [ 21.830607] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
Apr 29 04:28:30 localhost kernel: [ 21.830622] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 3000 mBm), (N/A)
Apr 29 04:28:30 localhost kernel: [ 21.830638] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 1700 mBm), (N/A)
Apr 29 04:28:30 localhost kernel: [ 21.830653] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2300 mBm), (0 s)
Apr 29 04:28:30 localhost kernel: [ 21.830666] cfg80211: (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2300 mBm), (0 s)
Apr 29 04:28:30 localhost kernel: [ 21.830678] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 3000 mBm), (N/A)
Apr 29 04:28:30 localhost kernel: [ 21.830690] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
Apr 29 04:28:31 localhost kernel: [ 23.267222] audit: type=1400 audit(1493440111.735:9): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="snap.core.hook.configure" pid=1259 comm="apparmor_parser"
Apr 29 04:28:32 localhost kernel: [ 24.190638] audit: type=1400 audit(1493440112.659:10): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="snap.core.hook.configure" pid=1307 comm="apparmor_parser"