[Galaxy Note GT-N7000 Android Development] tophechris:
Here are some logs, hoping they can help you to solve this Wifi issue.

A first short one :

04-14 22:17:06.952 491 7096 D WifiService: setWifiEnabled: true pid=15857, uid=1000, package=com.android.settings
04-14 22:17:06.952 491 7096 I WifiService: setWifiEnabled package=com.android.settings uid=1000 enable=true
04-14 22:17:06.954 491 601 D WifiController: StaEnabledState.enter()
04-14 22:17:06.957 491 602 D WifiStateMachinePrime: received a message in WifiDisabledState: { when=-3ms what=0 target=com.android.internal.util.StateMachine$SmHandler }
04-14 22:17:06.957 491 602 D WifiStateMachinePrime: Switching from WifiDisabledState to ClientMode
04-14 22:17:06.957 491 602 D WifiStateMachinePrime: Entering ClientModeActiveState
04-14 22:17:06.958 491 602 E BatteryStatsService: Power Hal not loaded
04-14 22:17:06.959 491 602 D WifiClientModeManager: entering IdleState
04-14 22:17:06.967 491 602 D WifiStateMachinePrime: State changed from client mode. state = 2
04-14 22:17:06.975 491 491 D WifiP2pService: Wifi enabled=false, P2P Interface availability=true
04-14 22:17:06.990 491 604 I WifiP2pNative: Registering for interface available listener
04-14 22:17:06.998 491 602 I WifiVendorHal: Vendor Hal started successfully
04-14 22:17:06.998 491 602 E SupplicantStaIfaceHal: Death handler already present
04-14 22:17:07.000 328 328 I e : type=1400 audit(0.0:3430): avc: denied { write } for name="firmware_path" dev=sysfs ino=1719 scontext=u:r:hal_wifi_default:s0 tcontext=u:object_r:sysfs:s0 tclass=file permissive=1
04-14 22:17:07.247 491 7096 E memtrack: Couldn't load memtrack module
04-14 22:17:07.247 491 7096 W android.os.Debug: failed to get memory consumption info: -1
04-14 22:17:17.062 328 328 E WifiHAL : Timed out waiting on Driver ready ...
04-14 22:17:17.062 328 328 E android.hardware.wifi@1.0-service: Timed out awaiting driver ready
04-14 22:17:17.062 328 328 E android.hardware.wifi@1.0-service: Failed to start legacy HAL: TIMED_OUT
04-14 22:17:17.064 491 602 E HalDevMgr: executeChipReconfiguration: configureChip error: 9 (, timed out)
04-14 22:17:17.064 491 602 E WifiVendorHal: Failed to create STA iface
04-14 22:17:17.064 491 602 E WifiNative: Failed to create STA iface in vendor HAL
04-14 22:17:17.064 491 602 E WifiClientModeManager: Failed to create ClientInterface. Sit in Idle
04-14 22:17:17.064 491 602 D WifiStateMachinePrime: State changed from client mode. state = 4
04-14 22:17:17.064 491 602 D WifiClientModeManager: expected stop, not triggering callbacks: newState = 1
04-14 22:17:17.078 491 491 D WifiP2pService: Wifi enabled=false, P2P Interface availability=true
04-14 22:17:17.095 491 510 E BatteryExternalStatsWorker: no controller energy info supplied for wifi
04-14 22:17:17.102 491 602 D WifiStateMachinePrime: ClientMode failed, return to WifiDisabledState.
04-14 22:17:17.103 491 602 D WifiController: ClientMode unexpected failure: state unknown
04-14 22:17:17.103 491 602 D WifiClientModeManager: currentstate: IdleState
04-14 22:17:17.103 491 602 D WifiStateMachinePrime: Entering WifiDisabledState
04-14 22:17:17.103 491 602 D ActiveModeManager: sending scan available broadcast: false
04-14 22:17:17.115 491 602 D WifiStateMachinePrime: received a message in WifiDisabledState: { when=-12ms what=3 target=com.android.internal.util.StateMachine$SmHandler }
04-14 22:17:17.115 491 602 D WifiStateMachinePrime: Switching from WifiDisabledState to WifiDisabled
04-14 22:17:17.115 491 602 D WifiStateMachinePrime: Entering WifiDisabledState
04-14 22:17:17.115 491 602 D ActiveModeManager: sending scan available broadcast: false
04-14 22:17:17.134 491 603 I WifiScanningService: wifi driver unloaded
04-14 22:17:17.134 491 603 I WifiScanningService: wifi driver unloaded
04-14 22:17:18.815 304 304 I healthd : type=1400 audit(0.0:3431): avc: denied { read } for name="present" dev=sysfs ino=9241 scontext=u:r:healthd:s0 tcontext=u:object_r:sysfs:s0 tclass=file permissive=1
04-14 22:17:18.815 304 304 I healthd : type=1400 audit(0.0:3432): avc: denied { open } for name="present" dev=sysfs ino=9241 scontext=u:r:healthd:s0 tcontext=u:object_r:sysfs:s0 tclass=file permissive=1
04-14 22:17:18.815 304 304 I healthd : type=1400 audit(0.0:3433): avc: denied { getattr } for path="/sys/devices/platform/s3c2440-i2c.5/i2c-5/5-0066/max8997-charger/power_supply/max8997-charger/present" dev=sysfs ino=9241 scontext=u:r:healthd:s0 tcontext=u:object_r:sysfs:s0 tclass=file permissive=1

A a second one longer for your pleasure :

4-14 22:11:01.840 474 474 I rild : type=1400 audit(0.0:3336): avc: denied { ioctl } for path="/dev/umts_ipc0" dev="tmpfs" ino=842 ioctlcmd=6f27 scontext=u:r:rild:s0 tcontext=u:object_r:device:s0 tclass=chr_file permissive=1
04-14 22:11:05.442 491 1351 E memtrack: Couldn't load memtrack module
04-14 22:11:05.442 491 1351 W android.os.Debug: failed to get memory consumption info: -1
04-14 22:11:06.565 580 580 I InputDispatcher: type=1400 audit(0.0:3337): avc: denied { call } for scontext=u:r:system_server:s0 tcontext=u:r:init:s0 tclass=binder permissive=1
04-14 22:11:06.570 319 319 I ce.samsung: type=1400 audit(0.0:3338): avc: denied { write } for name="brightness" dev=sysfs ino=11809 scontext=u:r:init:s0 tcontext=u:object_r:sysfs:s0 tclass=file permissive=1
04-14 22:11:06.570 319 319 I ce.samsung: type=1400 audit(0.0:3339): avc: denied { open } for name="brightness" dev=sysfs ino=11809 scontext=u:r:init:s0 tcontext=u:object_r:sysfs:s0 tclass=file permissive=1
04-14 22:11:06.590 16188 16188 I RenderThread: type=1400 audit(0.0:3340): avc: denied { ioctl } for path="/dev/mali" dev="tmpfs" ino=696 ioctlcmd=8208 scontext=u:r:system_app:s0 tcontext=u:object_r:device:s0 tclass=chr_file permissive=1
04-14 22:11:06.606 491 1351 D WifiService: setWifiEnabled: true pid=15857, uid=1000, package=com.android.settings
04-14 22:11:06.606 491 1351 I WifiService: setWifiEnabled package=com.android.settings uid=1000 enable=true
04-14 22:11:06.630 491 601 D WifiController: StaEnabledState.enter()
04-14 22:11:06.643 491 602 D WifiStateMachinePrime: received a message in WifiDisabledState: { when=-13ms what=0 target=com.android.internal.util.StateMachine$SmHandler }
04-14 22:11:06.643 491 602 D WifiStateMachinePrime: Switching from WifiDisabledState to ClientMode
04-14 22:11:06.644 491 602 D WifiStateMachinePrime: Entering ClientModeActiveState
04-14 22:11:06.650 491 602 D WifiClientModeManager: entering IdleState
04-14 22:11:06.650 491 602 D WifiStateMachinePrime: State changed from client mode. state = 2
04-14 22:11:06.679 491 491 D WifiP2pService: Wifi enabled=false, P2P Interface availability=true
04-14 22:11:06.703 491 602 I WifiVendorHal: Vendor Hal started successfully
04-14 22:11:06.703 491 604 I WifiP2pNative: Registering for interface available listener
04-14 22:11:06.715 491 602 E SupplicantStaIfaceHal: Death handler already present
04-14 22:11:06.740 328 328 I e : type=1400 audit(0.0:3341): avc: denied { write } for name="firmware_path" dev=sysfs ino=1719 scontext=u:r:hal_wifi_default:s0 tcontext=u:object_r:sysfs:s0 tclass=file permissive=1
04-14 22:11:08.792 779 876 D GsmInboundSmsHandler: Skipped message de-duping logic
04-14 22:11:08.924 491 508 I ActivityManager: Start proc 16613:android.process.acore/u0a7 for content provider com.android.providers.blockednumber/.BlockedNumberProvider
04-14 22:11:08.939 16613 16613 I Zygote : seccomp disabled by setenforce 0
04-14 22:11:08.947 16613 16613 W d.process.acor: Using default instruction set features for ARM CPU variant (cortex-a9) using conservative defaults
04-14 22:11:09.039 16613 16613 I d.process.acor: The ClassLoaderContext is a special shared library.
04-14 22:11:09.200 16613 16613 I d.process.acor: The ClassLoaderContext is a special shared library.
04-14 22:11:09.343 16613 16613 I ContactsPerf: VoicemailContentProvider.onCreate start
04-14 22:11:09.380 16613 16613 I ContactsPerf: VoicemailContentProvider.onCreate finish
04-14 22:11:09.406 16613 16613 I d.process.acor: The ClassLoaderContext is a special shared library.
04-14 22:11:09.448 16613 16630 D ContactsDatabaseHelper: WAL enabled for contacts2.db: false
04-14 22:11:09.529 16613 16624 I d.process.acor: Background concurrent copying GC freed 2640(283KB) AllocSpace objects, 2(40KB) LOS objects, 27% free, 1345KB/1857KB, paused 4.653ms total 180.239ms
04-14 22:11:09.683 16613 16630 I ContactLocale: AddressBook Labels [[fr_FR]]: […, A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, Α, Β, Γ, Δ, Ε, Ζ, Η, Θ, Ι, Κ, Λ, Μ, Ν, Ξ, Ο, Π, Ρ, Σ, Τ, Υ, Φ, Χ, Ψ, Ω, …, А, Б, В, Г, Д, Ђ, Е, Є, Ж, З, И, І, Й, Ј, К, Л, Љ, М, Н, Њ, О, П, Р, С, Т, Ћ, У, Ф, Х, Ц, Ч, Џ, Ш, Щ, Ю, Я, …, א, ב, ג, ד, ה, ו, ז, ח, ט, י, כ, ל, מ, נ, ס, ע, פ, צ, ק, ר, ש, ת, …, ا, ب, ت, ث, ج, ح, خ, د, ذ, ر, ز, س, ش, ص, ض, ط, ظ, ع, غ, ف, ق, ك, ل, م, ن, ه, و, ي, …, ก, ข, ฃ, ค, ฅ, ฆ, ง, จ, ฉ, ช, ซ, ฌ, ญ, ฎ, ฏ, ฐ, ฑ, ฒ, ณ, ด, ต, ถ, ท, ธ, น, บ, ป, ผ, ฝ, พ, ฟ, ภ, ม, ย, ร, ฤ, ล, ฦ, ว, ศ, ษ, ส, ห, ฬ, อ, ฮ, …, ㄱ, ㄴ, ㄷ, ㄹ, ㅁ, ㅂ, ㅅ, ㅇ, ㅈ, ㅊ, ㅋ, ㅌ, ㅍ, ㅎ, …, あ, か, さ, た, な, は, ま, や, ら, わ, #, …]
04-14 22:11:09.778 16613 16630 D ContactsDatabaseHelper: WAL enabled for profile.db: false
04-14 22:11:09.965 16630 16630 I Worker-1: type=1400 audit(0.0:3342): avc: denied { read } for name="mem_used_total" dev=sysfs ino=8112 scontext=u:r:priv_app:s0:c512,c768 tcontext=u:object_r:sysfs:s0 tclass=file permissive=1
04-14 22:11:09.965 16630 16630 I Worker-1: type=1400 audit(0.0:3343): avc: denied { open } for name="mem_used_total" dev=sysfs ino=8112 scontext=u:r:priv_app:s0:c512,c768 tcontext=u:object_r:sysfs:s0 tclass=file permissive=1
04-14 22:11:09.965 16630 16630 I Worker-1: type=1400 audit(0.0:3344): avc: denied { getattr } for path="/sys/devices/virtual/block/zram0/mem_used_total" dev=sysfs ino=8112 scontext=u:r:priv_app:s0:c512,c768 tcontext=u:object_r:sysfs:s0 tclass=file permissive=1
04-14 22:11:16.796 328 328 E WifiHAL : Timed out waiting on Driver ready ...
04-14 22:11:16.796 328 328 E android.hardware.wifi@1.0-service: Timed out awaiting driver ready
04-14 22:11:16.797 328 328 E android.hardware.wifi@1.0-service: Failed to start legacy HAL: TIMED_OUT
04-14 22:11:16.801 491 602 E HalDevMgr: executeChipReconfiguration: configureChip error: 9 (, timed out)
04-14 22:11:16.801 491 602 E WifiVendorHal: Failed to create STA iface
04-14 22:11:16.801 491 602 E WifiNative: Failed to create STA iface in vendor HAL
04-14 22:11:16.801 491 602 E WifiClientModeManager: Failed to create ClientInterface. Sit in Idle
04-14 22:11:16.801 491 602 D WifiStateMachinePrime: State changed from client mode. state = 4
04-14 22:11:16.801 491 602 D WifiClientModeManager: expected stop, not triggering callbacks: newState = 1
04-14 22:11:16.814 491 491 D WifiP2pService: Wifi enabled=false, P2P Interface availability=true
04-14 22:11:16.830 510 510 I batterystats-wo: type=1400 audit(0.0:3345): avc: denied { read } for name="wakelocks" dev=proc ino=4026533546 scontext=u:r:system_server:s0 tcontext=u:object_r:proc:s0 tclass=file permissive=1
04-14 22:11:16.830 510 510 I batterystats-wo: type=1400 audit(0.0:3346): avc: denied { open } for name="wakelocks" dev=proc ino=4026533546 scontext=u:r:system_server:s0 tcontext=u:object_r:proc:s0 tclass=file permissive=1
04-14 22:11:16.830 510 510 I batterystats-wo: type=1400 audit(0.0:3347): avc: denied { getattr } for path="/proc/wakelocks" dev=proc ino=4026533546 scontext=u:r:system_server:s0 tcontext=u:object_r:proc:s0 tclass=file permissive=1
04-14 22:11:16.837 491 510 E BatteryExternalStatsWorker: no controller energy info supplied for wifi
04-14 22:11:16.844 491 602 D WifiStateMachinePrime: ClientMode failed, return to WifiDisabledState.
04-14 22:11:16.844 491 602 D WifiController: ClientMode unexpected failure: state unknown
04-14 22:11:16.845 491 602 D WifiClientModeManager: currentstate: IdleState
04-14 22:11:16.846 491 602 D WifiStateMachinePrime: Entering WifiDisabledState
04-14 22:11:16.846 491 602 D ActiveModeManager: sending scan available broadcast: false
04-14 22:11:16.848 491 602 D WifiStateMachinePrime: received a message in WifiDisabledState: { when=-3ms what=3 target=com.android.internal.util.StateMachine$SmHandler }
04-14 22:11:16.848 491 602 D WifiStateMachinePrime: Switching from WifiDisabledState to WifiDisabled
04-14 22:11:16.848 491 602 D WifiStateMachinePrime: Entering WifiDisabledState
04-14 22:11:16.848 491 602 D ActiveModeManager: sending scan available broadcast: false
04-14 22:11:16.851 491 603 I WifiScanningService: wifi driver unloaded
04-14 22:11:16.857 491 510 E BatteryExternalStatsWorker: no controller energy info supplied for wifi
04-14 22:11:18.188 491 1176 I ActivityManager: Killing 16061:com.nextcloud.client/u0a87 (adj 906): empty #9
04-14 22:11:16.852 491 603 I WifiScanningService: wifi driver unloaded
04-14 22:11:18.211 491 509 W libprocessgroup: kill(-16061, 9) failed: No such process
04-14 22:11:18.215 491 2703 I ActivityManager: Killing 16489:im.vector.alpha/u0a91 (adj 904): empty #9
04-14 22:11:18.235 491 505 E memtrack: Couldn't load memtrack module
04-14 22:11:18.235 491 505 W android.os.Debug: failed to get memory consumption info: -1
04-14 22:11:18.254 491 509 W libprocessgroup: kill(-16061, 9) failed: No such process
04-14 22:11:18.260 563 563 I system-server-i: type=1400 audit(0.0:3348): avc: denied { ioctl } for path="/dev/accelerometer" dev="tmpfs" ino=835 ioctlcmd=6108 scontext=u:r:system_server:s0 tcontext=u:object_r:sensors_device:s0 tclass=chr_file permissive=1
04-14 22:11:18.276 491 1176 D ConnectivityService: ConnectivityService NetworkRequestInfo binderDied(NetworkRequest [ TRACK_DEFAULT id=93, [ Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED Unwanted: Uid: 10091] ], android.os.BinderProxy@30ef146)
04-14 22:11:18.276 491 1176 D ConnectivityService: ConnectivityService NetworkRequestInfo binderDied(NetworkRequest [ LISTEN id=94, [ Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED Unwanted: Uid: 10091] ], android.os.BinderProxy@d043f07)
04-14 22:11:18.277 491 1176 D ConnectivityService: ConnectivityService NetworkRequestInfo binderDied(NetworkRequest [ TRACK_DEFAULT id=95, [ Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED Unwanted: Uid: 10091] ], android.os.BinderProxy@c6d2834)
04-14 22:11:18.277 491 1176 D ConnectivityService: ConnectivityService NetworkRequestInfo binderDied(NetworkRequest [ LISTEN id=96, [ Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED Unwanted: Uid: 10091] ], android.os.BinderProxy@8f2265d)
04-14 22:11:18.278 491 605 D ConnectivityService: releasing NetworkRequest [ TRACK_DEFAULT id=93, [ Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED Unwanted: Uid: 10091] ] (release request)
04-14 22:11:18.279 491 605 D ConnectivityService: releasing NetworkRequest [ TRACK_DEFAULT id=95, [ Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED Unwanted: Uid: 10091] ] (release request)
04-14 22:11:18.299 491 509 W libprocessgroup: kill(-16061, 9) failed: No such process
04-14 22:11:18.302 300 300 I Zygote : Process 16489 exited due to signal (9)
04-14 22:11:18.314 300 300 I Zygote : Process 16061 exited due to signal (9)
04-14 22:11:18.346 491 509 W libprocessgroup: kill(-16061, 9) failed: No such process