Hi Peter,

1. Open AirPort Utility
2. Click on the AirPort Time Capsule icon
3. Click Edit in the smaller window that appears
4. Click the Wireless tab at the top of the next window that appears
5. Edit the Wireless Network Name to something that is simple, short, with no 
blank spaces or special characters
6. Change the Wireless Password to something different and Verify again
tick Remember this password in my keychain
7. Click Update at the lower right of the window and wait a minute for the 
AirPort TC to restart
 
Might be a good idea to write the details of new Wireless Network name & 
password and keep it in a safe place. - Wireless Routers in 1Password 5

All devices that connected to the previous Wi-Fi Network name will need to 
connect to the new Wi-Fi Network Name and type the new password and save the 
password to their keychain.

Cheers,
Ronni

13-inch MacBook Air (April 2014)
1.7GHz Dual-Core Intel Core i7, Turbo Boost to 3.3GHz
8GB 1600MHz LPDDR3 SDRAM
512GB PCIe-based Flash Storage

OS X Yosemite 10.10.2

> On 24 May 2015, at 8:07 pm, Peter Crisp <petercr...@westnet.com.au> wrote:
> 
> I wish to change the name of the WiFi network in my house. I presume I just 
> go into Airport Utility and update in there. 
> 
> Once this is done, is there a need to re-establish connection of every device 
> and re-enter the passcode? Any other things I need to be aware of?
> 
> Be home in a couple of weeks so will implement then.
> 
> Regards
> 
> 
> Pete

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