Are you using Windows computer or Mac ?
If possible please attach screenshot
I'm using windows 7
1)Open Control Panel and then click on the option "Network and Internet" .
2)Click on Internet options, click on 'Connections' tab.
3)In the 'Connections' tab, select 'LAN' settings, you will be able to view the Local area network settings box.
4)Check the box-"Automatically Detect Settings" and then "uncheck" all the other check boxes like 'Use automatic configuration script', 'Use a proxy server' , Bypass proxy server' ,then click on ok button .
5)Click on "LAN settings" button again , make sure "Automatically Detect Settings" is the only option selected, keep the LAN properties window open.
Disable Anti Virus and Firewall temporarily ..
Then try to update Creative Cloud application and check.
Still same?? Let me know