Done with all your recommendations except uninstalling third party apps. I'll read my Etrecheck report and check back here first. Maybe save me some guessing… Safe Mode did resolve the problem, but only in Safe Mode; when I restarted in normal mode the problem reappeared. Here's the report:
EtreCheck version: 3.0.5 (309)
Report generated 2016-09-23 15:50:19
Download EtreCheck from https://etrecheck.com
Runtime 5:47
Performance: Below Average
Click the [Support] links for help with non-Apple products.
Click the [Details] links for more information about that line.
Problem: Other problem
Description:
https://discussions.apple.com/message/30677642
Hardware Information: ⓘ
MacBook Pro (15-inch, Late 2011)
[Technical Specifications] - [User Guide] - [Warranty & Service]
MacBook Pro - model: MacBookPro8,2
1 2.4 GHz Intel Core i7 CPU: 4-core
16 GB RAM Upgradeable - [Instructions]
BANK 0/DIMM0
8 GB DDR3 1333 MHz ok
BANK 1/DIMM0
8 GB DDR3 1333 MHz ok
Bluetooth: Old - Handoff/Airdrop2 not supported
Wireless: en1: 802.11 a/b/g/n
Battery: Health = Normal - Cycle count = 199
Video Information: ⓘ
Intel HD Graphics 3000
AMD Radeon HD 6770M - VRAM: 1024 MB
Color LCD 1440 x 900
ASUS PB287Q 3840 x 2160 @ 30 Hz
System Software: ⓘ
OS X El Capitan 10.11.6 (15G1004) - Time since boot: less than an hour
Disk Information: ⓘ
TOSHIBA MK7559GSXF disk0 : (750.16 GB) (Rotational)
EFI (disk0s1) <not mounted> : 210 MB
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
HD Internal 750GB (disk1) / : 748.93 GB (176.88 GB free)
Core Storage: disk0s2 749.30 GB Online
MATSHITADVD-R UJ-8A8 ()
USB Information: ⓘ
Apple Inc. FaceTime HD Camera (Built-in)
Apple Inc. Apple Internal Keyboard / Trackpad
Apple Inc. BRCM2070 Hub
Apple Inc. Bluetooth USB Host Controller
VIA Labs, Inc. USB2.0 Hub 3 TB
VIA Labs, Inc. USB2.0 Hub
Logitech USB Receiver
Logitech USB Trackball
Tablet PTK-640
Western Digital My Book 1234 3 TB
EFI (disk2s1) <not mounted> : 210 MB
Boot OS X (disk2s3) <not mounted> : 134 MB
Time Machine (disk3) /Volumes/Time Machine : 3.00 TB (1.39 TB free)
Encrypted AES-XTS Unlocked
Core Storage: disk2s2 3.00 TB Online
Apple Computer, Inc. IR Receiver
Thunderbolt Information: ⓘ
Apple Inc. thunderbolt_bus
Gatekeeper: ⓘ
Mac App Store and identified developers
Kernel Extensions: ⓘ
/Library/Extensions
[loaded] at.obdev.nke.LittleSnitch (3.7 - SDK 10.11 - 2016-09-20) [Support]
[loaded] com.Logitech.Control Center.HID Driver (3.9.1 - SDK 10.8 - 2016-09-20) [Support]
[loaded] com.bongiovi.DPSReflector (1.0.6 - SDK 10.9 - 2016-09-20) [Support]
[not loaded] com.wacom.kext.ftdi (1.0 - SDK 10.10 - 2016-09-20) [Support]
/System/Library/Extensions
[loaded] com.Logitech.Unifying.HID Driver (1.3.0 - SDK 10.6 - 2016-09-20) [Support]
[loaded] com.corel.painter.PainterAudioDriver (1.0 - SDK 10.9 - 2016-09-20) [Support]
[not loaded] com.wacom.kext.wacomtablet (Wacom Tablet 6.3.11-3 - SDK 10.10 - 2016-09-20) [Support]
System Launch Agents: ⓘ
[failed] com.apple.softwareupdate_notify_agent.plist (2016-05-08)
[not loaded] 8 Apple tasks
[loaded] 154 Apple tasks
[running] 76 Apple tasks
System Launch Daemons: ⓘ
[failed] com.apple.Kerberos.kdc.plist (2015-08-22)
[not loaded] 45 Apple tasks
[loaded] 155 Apple tasks
[running] 89 Apple tasks
Launch Agents: ⓘ
[running] at.obdev.LittleSnitchUIAgent.plist (2016-09-20) [Support]
[running] com.Logitech.Control Center.Daemon.plist (2014-06-19) [Support]
[running] com.brother.LOGINserver.plist (2014-11-21) [Support]
[loaded] com.carbonite.launchd.carbonitealerts.plist (2016-01-11) [Support]
[running] com.carbonite.launchd.carbonitestatus.plist (2016-01-11) [Support]
[loaded] com.google.keystone.agent.plist (2016-07-13) [Support]
[running] com.micromat.TechToolProAgent.plist (2016-09-21) [Support]
[not loaded] com.oracle.java.Java-Updater.plist [Support]
[running] com.wacom.wacomtablet.plist (2014-12-22) [Support]
Launch Daemons: ⓘ
[running] at.obdev.littlesnitchd.plist (2016-09-20) [Support]
[failed] com.adobe.fpsaud.plist (2016-06-13) [Support]
[running] com.bombich.ccchelper.plist (2015-09-02) [Support]
[running] com.carbonite.launchd.carbonitedaemon.plist (2016-01-11) [Support]
[loaded] com.google.keystone.daemon.plist (2016-09-03) [Support]
[loaded] com.malwarebytes.HelperTool.plist (2016-09-20) [Support]
[loaded] com.malwarebytes.MBAMHelperTool.plist (2015-11-24) [Support]
[running] com.micromat.TechToolProDaemon.plist (2016-09-21) [Support]
[loaded] com.omnigroup.OmniSoftwareUpdate.OSUInstallerPrivilegedHelper.6.plist (2016-05-16) [Support]
[loaded] com.omnigroup.OmniSoftwareUpdate.OSUInstallerPrivilegedHelper.plist (2015-09-29) [Support]
[not loaded] com.oracle.java.Helper-Tool.plist [Support]
[loaded] com.tunabellysoftware.TGFanHelper.plist (2016-06-22) [Support]
[loaded] org.wireshark.ChmodBPF.plist (2016-06-24) [Support]
User Launch Agents: ⓘ
[loaded] com.citrixonline.GoToMeeting.G2MUpdate.plist (2015-12-15) [Support]
[running] com.lastpass.LastPassHelper.plist (2015-03-12) [Support]
[loaded] com.pia.pia_manager.plist (2016-09-11)
User Login Items: ⓘ
gfxCardStatus Application (/Applications/gfxCardStatus.app)
iTunesHelper Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
Battery Health Application (/Applications/Battery Health.app)
Caffeine Application (/Applications/Caffeine.app)
Print Selection Application (/Applications/Print Selection.app)
Solar Service Application (~/Library/Application Support/Logitech/SolarService/Solar Service.app)
Digital Power Station Application (/Applications/Digital Power Station/Digital Power Station.app)
Dropbox Application (/Applications/Dropbox.app)
CCC User Agent Application (/Applications/Carbon Copy Cloner.app/Contents/Library/LoginItems/CCC User Agent.app)
Water Break Application (/Applications/Water Break.app)
OpenDNS Updater Application (/Applications/OpenDNS Updater.app)
Fantastical Launcher SMLoginItem (/Applications/Fantastical 2.app/Contents/Library/LoginItems/Fantastical Launcher.app)
U4MRT5KL8R.com.globaldelight.VoilaCapture SMLoginItem (/Applications/Voila.app/Contents/Library/LoginItems/VoilaHelper.app)
Internet Status Helper App SMLoginItem (/Applications/Internet Status.app/Contents/Library/LoginItems/Internet Status Helper App.app)
LoginHelper SMLoginItem (/Applications/Memory Clean 2.app/Contents/Library/LoginItems/LoginHelper.app)
BatteryHealthHelper SMLoginItem (/Applications/Battery Health.app/Contents/Library/LoginItems/BatteryHealthHelper.app)
Print Selection Login SMLoginItem (/Applications/Print Selection.app/Contents/Library/LoginItems/Print Selection Login.app)
myPoint Grid LIH SMLoginItem (/Applications/myPoint Grid.app/Contents/Library/LoginItems/myPoint Grid LIH.app)
Internet Plug-ins: ⓘ
Default Browser: 601 - SDK 10.11 (2016-07-19)
QuickTime Plugin: 7.7.3 (2016-07-19)
Safari Extensions: ⓘ
JS Blocker 5 - Travis Roman - http://jsblocker.toggleable.com/ (2016-07-23)
LastPass - LastPass - https://lastpass.com (2016-09-20)
Pinbar - Mario Fischer - http://www.chipwreck.de/blog/software/safari-pinboard-extension/ (2015-03-11)
3rd Party Preference Panes: ⓘ
Carbonite (2016-02-11) [Support]
Flash Player (2016-06-13) [Support]
Logitech Control Center (2015-03-09) [Support]
TechTool Protection (2016-09-21) [Support]
WacomTablet (2014-12-22) [Support]
Time Machine: ⓘ
Skip System Files: NO
Auto backup: YES
Volumes being backed up:
HD Internal 750GB: Disk size: 748.93 GB Disk used: 572.04 GB
Destinations:
Time Machine [Local]
Total size: 3.00 TB
Total number of backups: 82
Oldest backup: 2014-12-30, 23:40
Last backup: 2016-09-23, 15:45
Size of backup disk: Excellent
Backup size 3.00 TB > (Disk size 748.93 GB X 3)
Top Processes by CPU: ⓘ
99% CarboniteDaemon
22% com.apple.iCloudHelper
7% TechToolProDaemon
4% WindowServer
3% Dropbox
Top Processes by Memory: ⓘ
1.65 GB com.apple.WebKit.WebContent(6)
1.19 GB kernel_task
885 MB Safari
279 MB mdworker(8)
246 MB Finder
Virtual Memory Information: ⓘ
2.78 GB Free RAM
13.00 GB Used RAM (4.93 GB Cached)
0 B Swap Used
Diagnostics Information: ⓘ
Sep 23, 2016, 02:47:10 PM Self test - passed
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