Slow download in Dubai, can't download from CDN
In Dubai, I use Du internet connection and in the past few weeks Internet has been very slow. Most of the experience has been like the screenshot above, even Mac App Store is showing just a series of crossed out icons/broken images.
After some trial and error (and Du's excellent customer service assistance on Twitter then over the phone), I finally figured out what was wrong;
Apparently, Du have recently changed their DNS server and it's affecting those who had use a custom DNS server (say Google Public DNS?). Removing the manual DNS entries will fix it, but if you want to explicitly add Du's new DNS servers, they are:
@dutweets issues resolved. the customer service has been superb. very personal. the lady from networking is also very helpful.happy customer
— Ronald Widha (@ronaldwidha) October 22, 2013