App store, Safari, software updates, icloud, do not work in Mavericks 10.9 using a proxy server

Same situation. After 10.9 upgrade, App store stoped working. We have a squid proxy and all worked fine before upgrade. Safari works fine sometimes, sometimes is very slow and sometimes don't open the page, or proxy authentication is required several times and then the page are not diplayed. Same pages are accessed with no problem from firefox. I can manage proxy, I googled around but have not found nothing usefull to help configure sites exclusion or whatever, all I found looks like woodoo, no clear explanation about the way things have to work.

We have this issue as well with Macs running Mavericks. We allow students to use their own devices after we have manually configered proxy settings via

System Preferences -> Network -> Advanced -> Proxies

But since installing Mavericks these settings do not stick. I have tested it on my own Air (2011) and I can replicate the issue but cant find a fix for it. Even after enabling the locking feature via

Apple >> System Preferences >> Security and Privacy >> click the lock in the lower left and input password >> Advanced >> check off "require an administrator password to access system-wide preferences".

It still removes the saved details for https.

I had this problem myself.

Checked the system log with Console, and I found the entry:-

Nov 11 11:16:41 teds-new-mac.ad.mycompany.co.uk ocspd[537]: Authentication challenge received for "10.203.39.212:8080", unable to obtain proxy server credential from System keychain.

For some unknown reason, Mavericks seems to be looking in the System keychain, when these credentials are actually held in the Login keychain.

So, I tried "Copy & Paste" - copying the https user name & password from the Login keychain and pasting into the System keychain, which worked but it's not quite as straightforward as I initially thought.

Pasting into the System Keychain was, I found a not-very-intuitive process:

Having opened your Login Keychain, click once on the item to be copied and when it's highlighted, select "Copy" from the Edit menu or, of course, cmd+c.

Select the System Keychain:- DO NOT CLICK THE PADLOCK IN THE TOP LEFT TO UNLOCK IT.

From the Edit menu, select "Paste" or cmd+v.

You will then get a dialogue box,, enter your administrator's password and select "Modify Keychain" or just hit return, as it's the default entry.

I found a restart was in order before it recognised everything and would accept https pages without alert boxes, but YMMV.

Funnily enough - and this is where it seems counter-intuitive, if you do click on the padlock and unlock the System Keychain, "Paste" is greyed out in the Edit menu and cmd+v has no effect.

Exactly the opposite to what I'd expect..

I looked in log files and found same message:

Nov 19 12:09:22 iMAC.local ocspd[75]: Authentication challenge received for "X.X.X.X:3129", unable to obtain proxy server credential from System keychain.

and also a lot of messages like this:

Nov 19 12:11:12 iMAC.local com.apple.SecurityServer[14]: Problem opening rules file "/etc/authorization": No such file or directory

I tried the way you provided, I've copied both http and https password, I restarted the system but it still not work. The mesage is still the same: unable to obtain proxy server credential from System keychain

Open the System Keychain, double-click on your http entry: you'll get a dialogue box asking for your administrator's password - enter that, and when the keychain item opens up, select the tab "Access Control" and rather than add apps piecemeal, I opted to check "Allow all applications to access this item".

Then the same for the https password.

One restart later, it all worked.

yes, it works. I did the way you suggested and safari and appstore have started work properly.

Unfortunately I'm not the only user, my machines are binded to an active directory domain so my question is: my access credential are used by everyone who log in the machine to access internet and app store? I'm not sure I want this...

ttgreen1950

This solved my problem....FINALLY.

The only thing that I did in additin to your steps is that I deleted all of the old keys for my proxy server and then reentered the settings.

This problem was driving me nuts since upgrading to Mavericks. If I could award 1000 points I would. Actually I did not see an option for "This sovled my Problem".

I can't thank you enough