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I have been seeing the intermittent image loading issue for a couple of months and stumbled across a solution that worked for me.

Open System Preferences.
Click Network
Click the gear in the lower left corner and choose Set Service Order.
Click the Location pull-down and choose Automatic (or drag your preferred adapter to the top of the list).
Click the OK button.
Click the Apply button.

I'm guessing that some of my requests were erronesously being routed to adapters that were not in use. Changing the service order seems to have resolved it.
 
Everyone having this problem:

Change ''Maximum incomplete TCP/UDP sessions number from same host'' from its default value to 20 (The default value is generally 10) in your routers firewall settings.

This should solve the problem.

Thank you very very much, funkypepper! That setting worked! Thank you very much!
 
safari and other browsers don't load photos ,maps,videos

Hi !
I recently bought a macbook and i had a problem loading photos thumbnails on google , loading maps and sometimes videos .
This was very annoying , and i found that many people had this problem .
So here's how i solved it.
I hope it works for you as well .
1. Open your network preferences
2. Click on advanced (down right )
3. Click on TCP/IP tab
4. Copy the numbers next to router ( ex. 192.168.2.1 )
5. Open your browser ( any )
6. Paste the numbers so you can load your router page
--if you already know your router page you can ignore all of the above steps--
7. Select the security tab on the left
8. Select the firewall from submenu
9. Select disable

that is all !!!
I hope i could help !!
 
I'm sorry for bumping this old thread, but it was amongst the top results on Google when I was looking for a solution to this very same problem I was having.

Nothing mentioned in this thread helped. So I eventually figured out what was causing it, and it's very stupid ... Make sure the date & time are set right. That's all.

For some odd reason, mine had suddenly jumped back a few months. The time wasn't correct either. So as a result, it created a conflict with all the security settings on my macbook, since the security certificates on all browsers didn't add up with the date & time displayed on the macbook itself. I set it to the right date and time, and all of a sudden, all the pictures were working in all my browsers (Chrome, Firefox, and also Safari).

I hope this will help whoever is dealing with the same issue. You see sometimes you don't have to go through a bunch of complicated steps.
 
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