Edit: After half day, my wife’s Mac started having the same problem. I have then applied the solution that I found in the Apple
Apple Not Able To Match Launch Day Demand For iPhone 5s
Apple Fan Site has learned in the last couple of days that the Apple is struggling to produce enough iPhone 5s’ to keep up with the expected demand.
Multiple sources have confirmed to us that Apple retails stores are going to struggle to keep up with demand for the iPhone 5s on launch day and they are expecting less inventory of the 5s than needed to cater for the queues.
This also seems to be the reason Apple did not offer online pre-orders of the device. Many had recently put the lack of the ability to pre-order the iPhone 5s down to Apple wanting to manufacture and make sure they had the long lines around their own retail stores on launch day but that doesn’t seem the case. With such high demands there is no doubt by 3pm on Friday we will see success headlines for Apple such as ” iPhone 5s Sells Out In Hours” and it will be interesting to see how this is reflected on the stock market.
If you do not fancy the waiting out side of an Apple store on Friday morning then Apple will be opening up online orders for the iPhone 5s at 12:01 a.m PT or 8:01 a.m GMT.