Can not install or update on the Mac App Store

I was having a download problem with 10.7.4 and after much ado, I simply unhooked ethernet and used my hotspot to try it wirelessly and boom! It worked! The OS seems to be conflicting somehow with the hardwire network connection. I was having trouble downloading tutorial files from lynda.com also. I'm dying to see if this solved that problem.

So here i am too, having the same problem with Vodafone Internet Key UMTS/3G in Italy:

https://discussions.apple.com/thread/4074784?answerId=18806732022#18806732022&ac_cid=op123456#18806732

I thought it was something wrong with my mac but finally i found out it's a UMTS problem. I am actually without the dsl connection because it's broken and meanwhile i was using my vodafone internet key and the problem started.

Any other solutions?

Thanks John - this fixed my problem too and I never would have thought of it myself!!!

I have just started having this problem but I have been unable to get any of my VPN setup attempts or VPN software downloads to work. I have no internet access other than a 3G/4G hotspot. Has anyone come up with another solution to this since the last posts?

Sorry to reply to myself, but I just found one that works and I wanted to share for others that are having this issue. Google securitykiss, they have a VPN app that works for me, although it took awhile for it to connect, and the app store works again.

Hello from Spain.

I was having the same problem but finally I found the solution. If you can, please, translate an read my messages in this link https://discussions.apple.com/thread/4203467

And this other is the link to forum support of my ISP (movistar España): lhttp://comunidad.movistar.es/t5/Ayuda-técnica-de-móvil/APNs-movistar-España-y-Ma c-App-Store-compresión-de-datos/td-p/840518

Thank you very much

Thanks! My problem is finally solved!!!!🙂

Able to buy, but not download via Mobile Broadband USB stick by Vodafone Romania.

Shared my Iphone´s 3G internet connection (powered by Orange Romania) via wifi and the apps downloaded and installed without a hitch. weird. no land line around!

I also had similar problem, although this would only apply to folk who have changed settings in their firewall OR have a security manager programme running from the company who supplied the modem/router.

I couldn't update iphone apps on my home wifi network, this was for all apple devices with apps so knew it was something general. I could however update the apps via 3G. In the end it was caused by advice I got from a security site to block the top 10 dangerous high level domains on my routers firewall. However, when I looked at my firewall settings it already had a bunch in there which were not on the router's factory settings .cn .ru .cc etc. so may have been put in there by the broadband company or the above mentioned security management software from them?

I digress, I added a few more 'dodgy' HLDs with the thought that I was protecting myself against the bad lads.

As it was a good while before I noticed that my iphone wasn't updating in the home I didn't connect the dots immediately.

This morning after one of my non-3G devices was showing 33 updates I decided to spend a bit of quality thinking time, in bed, on the problem.

A bit of deduction later and a quick visit to the router config pages and bingo! The apps started flooding in.

Apple must be using an app server registered in one of the high-level domains on the 'dangerous' HLD lists?

As I reset the firewall to it's factory default for domain blocking, I can't tell which of the dozen in the list was the offending HLD.

I dont know if this will help at all but as I scanned a few posts above I noticed folk getting their updates via VPNs/proxies which would effectively detour around their own firewall blocked domain settings.

Worth a look?

As I said, my router came preinstalled with some blocked HLDs from the ISP. Maybe yours does too?