Safari can't establish secure connection

Thanks, Eric! I've tested using a new Admin => No change in behavior. Tested in Safe Mode => No change in behavior. I then removed most all of my apps. No change in behavior. So I figured I'd just use a time machine backup from a week ago to override the issue. However - and this is why I'm now using my ipad to type this response - when I went through the process , and was asked to reboot,....upon reboot, I was presented with "you are unable to log into file vault user account at this time. An error has occurred." So now I'm unable to even log into my machine, whether in normal or safe mode. I have no startup disk, but went onto Internet recovery and opened Disk Utility. Any ideas on how I can resolve this new issue.?

Try Disk Utility/File/Turn off encryption. Then try restoring from Time Machine.

In disk utility, Mac HD,....the option to turn off encryption is greyed out.

Boot to the Recovery Volume (command - R on a restart or hold down the option/alt key during a restart and select Recovery Volume). Try turning off encryption.

same result. Option is grayed out. will reinstalling the OS fix this or would I need to erase my had first, then do the install,...?

On iPad, I always get a message when i use safari saying cannot establish a secure connection to the serve , this happens with google and YouTube only, otherwise all other websites and apps working fine, I backed up, delete ipad back to factory same, after i downloaded my apps and setting back, and i got advice to check the time/date to be automatic, and it is already, even when i try on google chrome , its not working, and youtubes even through google application , please advice

On iPad, I always get a message when i use safari saying cannot establish a secure connection to the serve , this happens with google and YouTube only, otherwise all other websites and apps working fine, I backed up, delete ipad back to factory same, after i downloaded my apps and setting back, and i got advice to check the time/date to be automatic, and it is already, even when i try on google chrome , its not working, and youtubes even through google application , please advice

This issue seems to be also discussed on this thread:

https://discussions.apple.com/thread/6431361

I posted solution to that thread:

https://discussions.apple.com/thread/6431361?answerId=28989558022#28989558022&tstart=0#28989558

My solution is pasted here:

My business partner was experiencing the same issue from home on a MacBook Pro and iMac on a wireless network - she could not access any google sites or services (google.com, gMail, Google Drive, youtube, etc.). Both machines were running 10.9.5 and upgrading to 10.10 solved the problem. Here is a list of things we tried first which did NOT work:

- added dns 8.8.8.8

- software/security updates (without updating from 10.9 to 10.10)

- turn off extensions in safari

- delete google cookies in safari

- install chrome and firefox; problem was consistent across all browsers

- repair permissions

- boot as a new, different user

- boot into safe mode

- remove startup items

- reset router

- update router firmware

This issue plagued me for a long time too until I figured it out! If you flash your PRAM (hold down command-options-P-R while restarting) it will fix the issue. For me, it's a recurring issue with Amazon and flashing the PRAM fixes it every single time. I hope this helps you too.

I had the Safari Can't Establish Secure Connection problem for a long time, and didn't realize how closely linked the issue was to the DNS server that had been assigned in Network Settings. Clearing Website Data in Safari Preferences never worked, and there are many other strange and convoluted solutions that didn't do the trick. Resetting DNS worked for me, FINALLY.

To paraphrase Linc Davis' previous post:

Unlock the Network preference pane, if necessary, by clicking the lock icon in the lower left corner and entering your password. Cllck Advanced, open the DNS tab, and change the server addresses to the following:

8.8.8.8

8.8.4.4

That's Google DNS. Click OK, then Apply.

That's what worked for me. The Google DNS page is worth a look too because it starts to give you an idea of how their DNS system works and why Safari would have trouble with your own ISP's settings, for instance.

I'm having the same problem. Yesterday I reset the PRAM. That fixed up a lot of problems I wasn't aware I was having. Today I tried resetting DNS to Google servers like CBIRD said. It allowed me to come into the forum discussions. Then I tried to upload the picture below, went to white screen, and when I clicked the back button, I got a message like the screen below. Nothing.

This seems to happen for no apparent reason on any web page , will connect the first time, then not any longer.

here is my Etre Check Report

EtreCheck version: 2.7.8 (238)

Report generated 2016-01-31 18:37:18

Download EtreCheck from http://etrecheck.com

Runtime 3:12

Performance: Good

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

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

Problem: Other problem

Description:

Safari says it can’t open a secure connection on a web page.

Hardware Information: ⓘ

MacBook (13-inch, Mid 2010)

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

MacBook - model: MacBook7,1

1 2.4 GHz Intel Core 2 Duo CPU: 2-core

2 GB RAM - Insufficient RAM!

BANK 0/DIMM0

1 GB DDR3 1067 MHz ok

BANK 1/DIMM0

1 GB DDR3 1067 MHz ok

Bluetooth: Old - Handoff/Airdrop2 not supported

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

Battery: Health = Check Battery - Cycle count = 463 - SN = W0106TV66E1LA

Video Information: ⓘ

NVIDIA GeForce 320M - VRAM: 256 MB

Color LCD 1280 x 800

spdisplays_display_connector

System Software: ⓘ

OS X Snow Leopard 10.6.8 (10K549) - Time since boot: less than an hour

Disk Information: ⓘ

Hitachi HTS545025B9SA02 disk0 : (232.89 GB) (Rotational)

- (disk0s1) <not mounted> : 210 MB

Macintosh HD (disk0s2) / : 249.72 GB (107.96 GB free)

OPTIARC DVD RW AD-5970H ()

USB Information: ⓘ

Apple Inc. Built-in iSight

Apple Inc. BRCM2070 Hub

Apple Inc. Bluetooth USB Host Controller

Logitech USB Laser Mouse

Apple Inc. Apple Internal Keyboard / Trackpad

Kernel Extensions: ⓘ

/System/Library/Extensions

[not loaded] com.seagate.driver.PowSecDriverCore (5.1.1) [Support]

[loaded] com.sophos.kext.sav (9.4.0 - SDK 10.9) [Support]

[loaded] com.sophos.nke.swi (9.4.0 - SDK 10.9) [Support]

/System/Library/Extensions/Seagate Storage Driver.kext/Contents/PlugIns

[not loaded] com.seagate.driver.PowSecLeafDriver_10_4 (5.1.1) [Support]

[not loaded] com.seagate.driver.PowSecLeafDriver_10_5 (5.1.1) [Support]

[not loaded] com.seagate.driver.SeagateDriveIcons (5.1.1) [Support]

Launch Agents: ⓘ

[loaded] com.coupons.coupond.plist [Support]

[running] com.seagate.SeagateStorageGauge.plist [Support]

[running] com.sophos.uiserver.plist [Support]

Launch Daemons: ⓘ

[loaded] com.adobe.fpsaud.plist [Support]

[loaded] com.microsoft.office.licensing.helper.plist [Support]

[running] com.sophos.common.servicemanager.plist [Support]

User Launch Agents: ⓘ

[failed] com.apple.CSConfigDotMacCert-[...]@me.com-SharedServices.Agent.plist [Details]

[loaded] com.citrixonline.GoToMeeting.G2MUpdate.plist [Support]

[loaded] com.google.keystone.agent.plist [Support]

User Login Items: ⓘ

Launch Connect Application (/Applications/Connect.app)

iTunesHelper UNKNOWN Hidden (missing value)

Android File Transfer Agent Application Hidden (~/Library/Application Support/Google/Android File Transfer/Android File Transfer Agent.app)

Dropbox Application (/Applications/Dropbox.app)

LexmarkNetworkServices Application Hidden (/Library/Application Support/Lexmark/LexmarkNetworkServices.app)

5600-6600 Series Button Monitor Application Hidden (/Library/Application Support/Lexmark/5600-6600 Series Scanner.bundle/Contents/SharedSupport/5600-6600 Series Button Monitor.app)

Other Apps: ⓘ

[running] [0x0-0x12012].com.FitLinxx.ConnectApp

[running] [0x0-0x13013].com.google.android.mtpagent

[running] [0x0-0x14014].com.getdropbox.dropbox

[running] [0x0-0x22022].com.techSmith.jing

[running] [0x0-0x23023].com.etresoft.EtreCheck

[running] [0x0-0xb00b].com.lexmark.aio.lexnet01

[running] [0x0-0xd00d].com.lexmark.aio.bm.c56

[running] com.sophos.autoupdate

[running] com.sophos.configuration

[running] com.sophos.intercheck

[running] com.sophos.notification

[running] com.sophos.scan

[running] com.sophos.sxld

[running] com.sophos.webd

Internet Plug-ins: ⓘ

Flip4Mac WMV Plugin: Version: 2.4.4.2 [Support]

FlashPlayer-10.6: Version: 20.0.0.286 - SDK 10.6 [Support]

JavaAppletPlugin: Version: 13.9.8 - SDK 10.6 Check version

Flash Player: Version: 20.0.0.286 - SDK 10.6 [Support]

CouponPrinter-FireFox_v2: Version: 5.0.5 - SDK 10.6 [Support]

QuickTime Plugin: Version: 7.6.6

SharePointBrowserPlugin: Version: 14.1.3 - SDK 10.6 [Support]

Silverlight: Version: 5.1.40728.0 - SDK 10.6 [Support]

DirectorShockwave: Version: 12.0.0r112 - SDK 10.6 [Support]

iPhotoPhotocast: Version: 7.0 - SDK 10.7

User internet Plug-ins: ⓘ

CitrixOnlineWebDeploymentPlugin: Version: 1.0.105 [Support]

Picasa: Version: 1.0 [Support]

Safari Extensions: ⓘ

AdBlock

Save to Pocket

Pin It Button

Audio Plug-ins: ⓘ

iSightAudio: Version: 7.6.6

3rd Party Preference Panes: ⓘ

Flash Player [Support]

Flip4Mac WMV [Support]

Time Machine: ⓘ

Time Machine information requires OS X 10.8 "Moutain Lion" or later.

Top Processes by CPU: ⓘ

10% Connect

4% WindowServer

2% Jing

1% ps

1% Dropbox

Top Processes by Memory: ⓘ

250 MB WebProcess

193 MB SophosScanD

176 MB InterCheck

172 MB Safari

88 MB Dropbox

Virtual Memory Information: ⓘ

32 MB Free RAM

1.97 GB Used RAM

113 MB Swap Used

Diagnostics Information: ⓘ

Jan 31, 2016, 06:18:46 PM Self test - passed

Jan 29, 2016, 10:12:21 PM ~/Library/Logs/DiagnosticReports/Safari_2016-01-29-221221_[redacted].crash

com.apple.Safari - /Applications/Safari.app/Contents/MacOS/Safari

Jan 28, 2016, 10:57:02 PM ~/Library/Logs/DiagnosticReports/WebProcess_2016-01-28-225702_[redacted].crash

com.apple.WebProcess - /System/Library/PrivateFrameworks/WebKit2.framework/WebProcess.app/Contents/Mac OS/WebProcess

Wow, this is such a mysterious issue with Safari. I suspect a lot of people have just given up and use a different browser. I think Safari or the default Network Configuration might be "over secure". Very much a hassle, and has been for years.

Before I switched to the Google DNS in Network Settings, I would turn my WiFi on and off, which would create a new local DNS and that would fix it. Not a great way to solve the problem, but it made me aware that the DNS was the issue. So far, the Google DNS 8.8.8.8 and 4.4.4.4 have been working OK for me.

Try uninstalling Sophos.

Sophos Un-install

I really appreciate the help. So far, Safari has had no difficulty. I don't remember how I got Sophos, and don't remember activating it, but it's gone now, and I'll be very happy if I no longer have that problem!!