"connection failed" mac app store

I spent hours looking at certificates, connections, etc., and finally found something that worked for my MacBook Pro running 10.7.5, found here. Instantly fixed my connection issue and I logged right in. FINALLY.

http://www.tonymacx86.com/general-help/64055-mac-app-store-itunes-dont-work.html

August 7th, 2012, 12:57 PM#9

After trying all of the fixes in this blog and a few others outside of this blog, I was ready to erase/reboot the entire computer. And, then... I noticed that the computer date was set incorrectly. I reset the date, and everything worked perfectly.

Note: I'm not sure if the date, along with the certificate reset and cache clear (in combination) helped, but until I changed the date to reflect the actual date/time, the other fixes didn't work.

This worked for me

thanks

Ticking automatically set date and time worked for me... thanks 🙂

Didn't work. :-/

how do you navigate to the root of your installation drive

your solution just saved my life. I installed the latest mac security update from the app store and all my security credentials got screwed up. couldn't download apps, sign into itunes, or even check webmail. almost every site i access daily was getting blocked. thanks to you, this is no longer an issue.

I was having this problem after installing Security Update 2015-004. Could not access the App Store (sign in said "connection failed"), iTunes store, iMessages, got certificate errors on sites like Twitter, my bank, etc. Two other guys at my office had the same problem at the same time. I'm on 10.9.5, but one of my coworkers was on 10.10, and the other still on 10.8, so there wasn't anything in common there. None of us could log in through our company's Lync app, as it said the server was unreachable, but I could log in to the same Lync account and server via Adium.

My time settings were correct, and I tried several times to replicate the steps of altering the trust settings on certificates (as detailed here: http://b.rthr.me/wp/2012/07/a-fix-for-ssl-certificate-problems-on-mac-osx-lion/) with no luck. Finally, out of desperation, I backed up all of my Login certificates (drag out of Keychain into a folder) and simply deleted them. I then deleted /var/db/crls/crlcache.db and /var/db/crls/ocspcache.db, emptied my trash, and restarted.

NOW everything works again, and the same fix cleared it up for one of my coworkers. Hopefully it will work for the last when he's done with his support call.

Update: This might work for some folks too: Security Update 2015-004 trashes Apple.com SSL Certificate on Mavericks, or this: http://apple.stackexchange.com/questions/180570/invalid-certificate-after-securi ty-update-2015-004-in-mavericks

I'd have tried either of those things first, but until I could log in to the App Store, I couldn't find the number of the update that broke my life for a week.

This happened to me too recently, on OS X Mavericks. I tried all the suggested solutions, including Apple's official solution with the blue crosses. The only one that worked was alfredo87's solution, changing the Keychain certificates to "Always Trust". Thanks, alfredo87!

I tried everything like setting auto date and time, installing security update 2015-004, played with keychains, deleted my login keychains, make the keychains of "class 3 public" as trust always , created new admin user, unistalled sophos and little snitch and lot other but nothing worked ................FINALLY i stumbled on this http://apple.stackexchange.com/questions/110940/only-chrome-can-access-the-inte rnet

found that i couldnt ping or curl it was icmp time out

SO for me it was dnsresponder problem...........

followed this need to restart mDNSResponder after every boot up "discussions.apple.com/thread/3514492" to restart my DNS & IT WORKED (i have osx 10.9.5)

It gave me error when i said to unload dns, but when i gave this second command

sudo launchctl load -F /System/Library/LaunchDaemons/com.apple.mDNSResponder.plist

seems it wasnt loading on reboot

it loaded the dns and now i can use safari , app store etc

i dont know yet if i have to reload mDNSResponder on reboot or not.. i've to check that later

dont know why chrome was able to connect to internet without this dns and other apps can't?????

Any way i'm done with this after wasting lot of time............

This worked like a charm...! Thanks for posting!!

thank you this fixed my issue

http://b.rthr.me/wp/2012/07/a-fix-for-ssl-certificate-problems-on-mac-osx-lion/

Still getting error 503 today for App Store updates even though Apple Service Status now says all back up and running well (problems with App store and iTunes reported earlier today). It would seem that this is an over-optimistic report. Been working properly until today and an update to iMovie is showing as available.