Thanks Mr Bennet,
I dont have any idea about dns i was going through discussions of like similar problem others have faced so come across a solution which requires a change in dns.ok for a while leave it a side ...i will explain what actually i did.
I thought to give a clean install of os x in my mac by erasing my harddisk as wel,so followed following steps.
1.booted mac with option r and used utility to erase my hardisk....
2. after erasing selected reinstall ox tab and followed few steps and which asked me to sign in icoud as well (all good till here)
3.Then when downloading starts it takes 6 to12 hrs remaining but after 3-4 hrs it displays a mess "os x yosmite failed to downlaod use purchases page to try again"
4.I have done this many times and have tried all times in days and night but problem is same.
5.I have no hardware issue with my mac , it was working perfect untill i did this.
6.Now as i have erased the harddisk there is no OS installed , so even if i dont press R with option it takes me to same page for reinstalling or restoring it from backup,utility etc page.
7 many people on this discussion page says its a apple server problem but where should i go ....feeling very bad abt this.
8. I dont have a backup to restore and also i am on a fibre 12 Mbps internet speed so cant understand what is the issue..
Its out of free support as wel ,can u advise how to fix it.... the error looks like the below image ..many thanks
