Cannot Access App Store with Mountain Lion

I have literally tried everything in this thread. The only thing I have not done yet is delete the Norten Anti Virus. Do you think this will make a difference?

I managed to download the 10.8.1 update on my wife's mac and installed it via USB. That worked for about 5mins and then went back to not being able to verify a secure connection to the app store and the Internet not working.

I am sure it's something to do with the wifi as I tested using my phones Internet with 3G as the router and that was fine.

Any more suggestions would be very welcome.

Hello, I was having the same problem, unable to connect to App store on MBP. I went to network settings and changed the DNS servers to 8.8.8.8 and 8.8.4.4, the Google servers. All works perfectly now.

I too am having this issue. I also cannot use mail or safari

I get this error message

Check with the developer to make sure App Store works with this version of OS X. You may need to reinstall the application. Be sure to install any available updates for the application and OS X.

I obviously cannot connect to the app store to get another copy of OSX to reinstall....

please help

Thanks Brett for this comment from you. I had exact the same problem after upgrading my MacBook Pro to Mountain Lion. Googling, 100 tips and tricks, no result at all.

You where the first to mention the Auto Proxy Discovery. And that did it for me.

Super tip.

Greetings from Belgium,

Thanks man i was screwing... it was proxies on 1 build and date and time zone on another.

🙂😁😉

Thanks ClarKent423. Setting the DNS servers works very well for me. Not only am I able to connect to App Store, I am also able to install Tab for Google+. Have been trying to search for a solution to my problem since yesterday.

Thanks again.

I had a similar problem after upgrading from one Mac to another. My problem was that GlimmerBlocker's install was compromised after the upgrade. I opened the GlimmerBlocker System Preferences item, and was given the option there to repair the installation. After doing that, everything was fine.

FWIW.

Using the Google DNS servers addressed the problem for me as well.

I also had the error "App Store cannot verify a secure connection with the App Store".

For me it was my DNS settings, so nothing would resolve.

I had just installed Server.app which turned on DNS Server which I immediately shut off. But then I had to go to System Preferences -> Network -> Advanced -> DNS and remove the hard coded entry for 127.0.0.1.

chris

Unchecking the Auto Proxy Discovery worked for me too. Thanks a lot 🙂

Hey all - Somewhere else on these forums I got a hit about the Apple Phone Service saying that the App Store uses the same engines as Safari.

I restarted Safari since I don't know when last and prepared also to reset the App Store, as instructed by the guy who writes articles here.

I accidentally started the App Store when I was supposed to shut it down for the resetting, but it worked!

Well go figure, the Apple Phone Guy were right.

Good luck,