cannot connect to the internet running imac el capitan 10.11.6

I am running El Capitan 10.11.6 on my imac and all was fine till 3 pm today i no longer was able to connect to the internet. I disconnected the ethernet cable and used justed the wireless since all my other devices are working fine and i rebooted the router several times no help. what could be wrong please help

iMac, Mac OS X (10.7.4)

Posted on Aug 18, 2016 3:43 PM

Reply
8 replies

Aug 18, 2016 6:17 PM in response to jpignat143

Try booting into Safe mode

<http://support.apple.com/kb/ht1564>

It is possible that a 3rd party addition you have installed is interfering with your networking. Safe mode will not load 3rd party additions, so you should be able to quickly see if you can access the network from Safe mode.


Please post the EtreCheck output

<https://discussions.apple.com/docs/DOC-6174> or <http://etrecheck.com>

This will show all the 3rd party additions installed.

Aug 18, 2016 8:58 PM in response to jpignat143

EtreCheck version: 3.0.2 (306)

Report generated 2016-08-18 23:43:52

Download EtreCheck from https://etrecheck.com

Runtime 2:48

Performance: Excellent


Click the [Support] links for help with non-Apple products.

Click the [Details] links for more information about that line.

Click the [Remove] links to remove adware.


Problem: Other problem

Description:

no internet


Hardware Information:

iMac (27-inch, Late 2009)

[Technical Specifications] - [User Guide] - [Warranty & Service]

iMac - model: iMac10,1

1 3.06 GHz Intel Core 2 Duo CPU: 2-core

16 GB RAM Upgradeable - [Instructions]

BANK 0/DIMM0

4 GB DDR3 1067 MHz ok

BANK 1/DIMM0

4 GB DDR3 1067 MHz ok

BANK 0/DIMM1

4 GB DDR3 1067 MHz ok

BANK 1/DIMM1

4 GB DDR3 1067 MHz ok

Bluetooth: Old - Handoff/Airdrop2 not supported

Wireless: en1: 802.11 a/b/g/n


Video Information:

ATI Radeon HD 4670 - VRAM: 256 MB

iMac 2560 x 1440


System Software:

OS X El Capitan 10.11.6 (15G31) - Time since boot: less than an hour


Disk Information:

WDC WD1001FALS-40U9B0 disk0 : (1 TB) (Rotational)

EFI (disk0s1) <not mounted> : 210 MB

Macintosh HD (disk0s2) / : 999.35 GB (133.24 GB free)

Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB


OPTIARC DVD RW AD-5680H ()


USB Information:

Apple Computer, Inc. IR Receiver

Apple Inc. BRCM2046 Hub

Apple Inc. Bluetooth USB Host Controller

Apple Inc. Built-in iSight

Apple Card Reader


Gatekeeper:

Mac App Store and identified developers


Adware:

~/Library/LaunchAgents/com.jdibackup.JustCloud.notify.plist

One adware file found. [Remove]


Unknown Files:

/Library/LaunchAgents/com.radialpoint.spp.SPPAgent.plist

/Library/Application Support/Verizon/Verizon Servicepoint Agent/Verizon Servicepoint Agent.app/Contents/MacOS/Verizon Servicepoint Agent

One unknown file found. [Check files]


Kernel Extensions:

/System/Library/Extensions

[not loaded] com.Cycling74.driver.Soundflower (1.5.1 - 2016-08-01) [Support]

[not loaded] com.wdc.driver.1394HP (1.0.9 - 2016-08-01) [Support]

[not loaded] com.wdc.driver.USBHP (1.0.11 - 2016-08-01) [Support]


System Launch Agents:

[not loaded] 8 Apple tasks

[loaded] 160 Apple tasks

[running] 70 Apple tasks


System Launch Daemons:

[failed] com.apple.ucupdate.plist (2015-08-01)

[failed] com.apple.watchdogd.plist (2016-04-20)

[not loaded] 42 Apple tasks

[loaded] 158 Apple tasks

[running] 89 Apple tasks


Launch Agents:

[not loaded] com.adobe.ARMDCHelper.cc24aef4a1b90ed56a725c38014c95072f92651fb65e1bf9c8e43c37a2 3d420d.plist (2016-07-12) [Support]

[not loaded] com.google.keystone.agent.plist (2016-07-12) [Support]

[not loaded] com.intego.backupassistant.agent.plist (2012-10-24) [Support]

[not loaded] com.mcafee.menulet.plist (2016-04-06) [Support]

[not loaded] com.mcafee.reporter.plist (2016-04-06) [Support]

[not loaded] com.radialpoint.spp.SPPAgent.plist (2010-02-05) [Support]

[not loaded] com.teamviewer.teamviewer.plist (2015-10-01) [Support]

[not loaded] com.teamviewer.teamviewer_desktop.plist (2015-10-01) [Support]


Launch Daemons:

[not loaded] com.adobe.ARMDC.Communicator.plist (2016-07-12) [Support]

[not loaded] com.adobe.ARMDC.SMJobBlessHelper.plist (2016-07-12) [Support]

[not loaded] com.adobe.fpsaud.plist (2016-06-28) [Support]

[not loaded] com.google.keystone.daemon.plist (2016-07-12) [Support]

[not loaded] com.intego.BackupAssistant.daemon.plist (2012-10-24) [Support]

[not loaded] com.macpaw.CleanMyMac3.Agent.plist (2015-10-28) [Support]

[not loaded] com.mcafee.cspd.plist (2015-05-08) [Support]

[not loaded] com.mcafee.ssm.ScanFactory.plist (2016-04-24) [Support]

[not loaded] com.mcafee.ssm.ScanManager.plist (2016-04-24) [Support]

[not loaded] com.mcafee.virusscan.fmpd.plist (2016-03-09) [Support]

[not loaded] com.oracle.java.JavaUpdateHelper.plist (2014-02-06) [Support]

[not loaded] com.teamviewer.Helper.plist (2015-03-02) [Support]

[not loaded] com.teamviewer.teamviewer_service.plist (2015-10-01) [Support]

[not loaded] com.wdc.WDPrivilegedHelper.plist (2016-02-26) [Support]


User Launch Agents:

[not loaded] com.adobe.ARM.[...].plist (2012-04-22) [Support]

[not loaded] com.amazon.cloud-player.plist (2013-12-08) [Support]

[not loaded] com.jdibackup.JustCloud.notify.plist (2016-07-12) Adware! [Remove]

/usr/bin/open

[not loaded] com.macpaw.CleanMyMac3.Scheduler.plist (2015-10-28)

[not loaded] com.plexapp.helper.plist (2012-05-01) [Support]

[not loaded] ltcm.plist (2014-08-07) [Support]

[not loaded] uk.co.markallan.clamxav.freshclam.plist (2013-06-13) [Support]


User Login Items:

iTunesHelper Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)

Dropbox Application (/Applications/Dropbox.app)


Internet Plug-ins:

o1dbrowserplugin: 5.41.3.0 - SDK 10.8 (2015-12-15) [Support]

SurveillanceClient: 3.10.22 - SDK 10.7 (2014-10-12) [Support]

Google Earth Web Plug-in: 6.0 (2011-05-17) [Support]

Default Browser: 601 - SDK 10.11 (2016-07-31)

OfficeLiveBrowserPlugin: Unknown (2013-03-20)

VLC Plugin: 1.0.5 (2011-04-07) [Support]

AdobePDFViewerNPAPI: 15.017.20053 - SDK 10.11 (2016-08-09) [Support]

FlashPlayer-10.6: 22.0.0.209 - SDK 10.9 (2016-07-12) [Support]

Silverlight: 5.1.41212.0 - SDK 10.6 (2016-02-02) [Support]

QuickTime Plugin: 7.7.3 (2016-07-31)

Flash Player: 22.0.0.209 - SDK 10.9 (2016-07-12) [Support]

googletalkbrowserplugin: 5.41.3.0 - SDK 10.8 (2015-12-11) [Support]

iPhotoPhotocast: 7.0 - SDK 10.8 (2013-04-24)

AdobePDFViewer: 15.017.20053 - SDK 10.11 (2016-08-09) [Support]

GarminGpsControl: 3.0.1.0 Release - SDK 10.4 (2011-10-22) [Support]

SiteAdvisor: 2.0 - SDK 10.1 (2014-10-06) [Support]

npmcafee: 2.0.15 (2014-07-22) [Support]

JavaAppletPlugin: Java 7 Update 51 (2014-02-06) Check version


Safari Extensions:

DivX Plus Web Player HTML5 <video> - DivX, Inc. -(2011-04-12)

SiteAdvisor - McAfee -(2015-12-10)

McAfee SafeKey - McAfee, Inc - (2014-12-30)

DivX HiQ - DivX, Inc. - (2011-04-12)


3rd Party Preference Panes:

Flash Player (2016-06-28) [Support]

Tuxera NTFS (2015-03-19) [Support]

WDQuickView (2014-12-07) [Support]


Time Machine:

Skip System Files: NO

Mobile backups: OFF

Auto backup: YES

Volumes being backed up:

Macintosh HD: Disk size: 999.35 GB Disk used: 866.10 GB

Destinations:

lacie [Local]

Total size: 999.86 GB

Total number of backups: 1

Oldest backup: 12/10/15, 3:26 PM

Last backup: 12/10/15, 3:26 PM

Size of backup disk: Too small

Backup size 999.86 GB < (Disk used 866.10 GB X 3)


Top Processes by CPU:

2% fontd

1% WindowServer

0% kernel_task

0% askpermissiond


Top Processes by Memory:

799 MB kernel_task

606 MB com.apple.WebKit.WebContent(4)

492 MB softwareupdated

262 MB Safari

213 MB WindowServer


Virtual Memory Information:

9.14 GB Free RAM

6.85 GB Used RAM (2.47 GB Cached)

0 B Swap Used


Diagnostics Information:

Aug 18, 2016, 11:20:58 PM Self test - passed

Aug 18, 2016, 10:32:56 PM ~/Library/Logs/DiagnosticReports/Garmin Express Service_2016-08-18-223256_[redacted].crash

/Applications/Garmin Express.app/Contents/Library/LoginItems/Garmin Express Service.app/Contents/MacOS/Garmin Express Service

Aug 18, 2016, 07:08:55 PM ~/Library/Logs/DiagnosticReports/Garmin Express Service_2016-08-18-190855_[redacted].crash

Aug 18, 2016, 06:18:15 PM ~/Library/Logs/DiagnosticReports/Garmin Express Service_2016-08-18-181815_[redacted].crash

Aug 18, 2016, 04:23:58 PM ~/Library/Logs/DiagnosticReports/Garmin Express Service_2016-08-18-162358_[redacted].crash

Aug 18, 2016, 03:56:34 PM ~/Library/Logs/DiagnosticReports/com.apple.preference.network.remoteservice_201 6-08-18-155634_[redacted].crash

/System/Library/PreferencePanes/Network.prefPane/Contents/XPCServices/com.apple .preference.network.remoteservice.xpc/Contents/MacOS/com.apple.preference.networ k.remoteservice

Aug 18, 2016, 03:36:09 PM ~/Library/Logs/DiagnosticReports/Garmin Express Service_2016-08-18-153609_[redacted].crash

Aug 18, 2016, 03:23:52 PM /Library/Logs/DiagnosticReports/StatefulFirewall_2016-08-18-152352_[redacted].c rash

/usr/local/McAfee/StatefulFirewall/bin/StatefulFirewall

Aug 18, 2016, 03:23:07 PM ~/Library/Logs/DiagnosticReports/Garmin Express Service_2016-08-18-152307_[redacted].crash

Aug 18, 2016, 03:21:31 PM /Library/Logs/DiagnosticReports/VShieldScanManager_2016-08-18-152131_[redacted] .crash

/usr/local/McAfee/AntiMalware/VShieldScanManager

Aug 16, 2016, 10:15:27 PM /Library/Logs/DiagnosticReports/Mail_2016-08-16-221527_[redacted].hang

/Applications/Mail.app/Contents/MacOS/Mail

Aug 16, 2016, 09:59:03 PM ~/Library/Logs/DiagnosticReports/Garmin Express Service_2016-08-16-215903_[redacted].crash


<Link Edited by Host>

Aug 19, 2016 6:09 AM in response to jpignat143

🙂Did you try Safe mode? Does networking work in Safe mode?

[not loaded] com.mcafee.menulet.plist (2016-04-06) [Support]

[not loaded] com.mcafee.reporter.plist (2016-04-06) [Support]

[not loaded] com.radialpoint.spp.SPPAgent.plist (2010-02-05) [Support]

[not loaded] com.mcafee.cspd.plist (2015-05-08) [Support]

[not loaded] com.mcafee.ssm.ScanFactory.plist (2016-04-24) [Support]

[not loaded] com.mcafee.ssm.ScanManager.plist (2016-04-24) [Support]

[not loaded] com.mcafee.virusscan.fmpd.plist (2016-03-09) [Support]

npmcafee: 2.0.15 (2014-07-22) [Support]

SiteAdvisor - McAfee -(2015-12-10)

McAfee SafeKey - McAfee, Inc - (2014-12-30)

Anti-virus software has been known to interfere with networking.

Please read:

How does Mac OS X protect me?

<http://www.thesafemac.com/mmg-builtin/>


And you have ClamXAV (as far as I know it does not intercept networking traffic, so I'm not picking on it for that)

[not loaded] uk.co.markallan.clamxav.freshclam.plist (2013-06-13) [Support]

and of all the anti-virus packages running ClamXAV is one of the less offensive, but generally only gets recommended with some Windows biased organization insists you have an anti-virus without bothering to educate themselves about Macs.

[not loaded] com.macpaw.CleanMyMac3.Agent.plist (2015-10-28) [Support]

[not loaded] com.macpaw.CleanMyMac3.Scheduler.plist (2015-10-28)

Mac cleaners are also not recommented. Sometimes they clean up things they should not.


While I suggest removing the above items, the more important thing from your perspective is getting network access back. And booting into Safe mode should have disabled all of the above, and if any of it was interfering then in Safe mode you should have been able to access the network, unless of course the Mac cleaner deleted something essential.


Did Carolyn Samit

Try System Preferences > Network then select the configuration on the left click Assist Me > Diagnostics

show anything useful?


Does System Preferences -> Network -> Advanced -> TCP/IP show you have a valid IP address (and not a 169.... self assigned address).


If you change your System Preferences -> Network -> Advanced -> DNS -> [+] address to something like

OpenDNS.org

208.67.222.222

208.67.220.220


Google DNS

8.8.8.8

8.8.4.4

Does that get things working? NOTE: the first DNS server in your Advanced -> DNS list is the most important, as it is always tried first, and then only if it does not respond (like 30 seconds later) is the next in the list tried.


...I disconnected the ethernet cable and used justed the wireless since all my other devices are working fine and i rebooted the router several times no help.


I just want to make sure I understand. Do you have Zero network access? Or did WiFi work, but Ethernet Fail? Your statement can be interpreted either way.


If it was just Ethernet, then check your Ethernet cable. Just last week I had a short Ethernet patch cable that I had been using for years fail. My ISP gives me 75+ megabits/sec and that bit of cable was delivering, until recently when it dropped to under 30Mbits/sec. I eliminated everything until it was just the patch cable that isolated to being at fault. So a stupid cable with no active components can still fail.


Again, if it was just etherent, it could be the ethernet router port (or ethernet switch port) you are plugged into. If a switch that then plugs into the router, it could be the entire switch, or it could be the ethernet cable from the switch to the router, or it could be the router port the switch is plugged into.


Of course if it is zero network connections from both WiFi and Ethernet, then that mostly restricts things to your Mac, or your Router deciding it does not like you 🙂

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

cannot connect to the internet running imac el capitan 10.11.6

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