Hello! I have in my home 2 iMac, 2 iPad, 2 iPhone, and 1 air base extreme. I don't succeed to connect more than one divice from similar type. I tried everything what I knew. I build another network, etc...

Question

Hello! I have in my home 2 iMac, 2 iPad, 2 iPhone, and 1 air base extreme. I don't succeed to connect more than one divice from similar type. I tried everything what I knew. I build another network, etc...
So only one imac, only one ipad..and so on simultain.
More over, all the divices are conect through wifi to air base but are not receiveing internet as i told above.
I need to disconnect one device to have internet on the second one from the same type!
Could somebody help me?
Many Thnaks,
dan

Answer 1

If your network configuration is:
Cable modem > (Ethernet cable) > [WAN] AEBS > (wireless) > Macs, then
AirPort Extreme Base Station Setup (AEBS) w/High-Speed Cable Modem
Modem/Router Power ReCycling
- Power-off the Cable modem, AEBS, & computer(s). (If possible, leave the modem off overnight.)
- Power-on the Cable modem; Wait at least 30 minutes.
- Power-on the AEBS; Wait at least 5 minutes.
- Power-on the computer(s)
Perform a "hard" reset of the AEBS.
- (ref: http://docs.info.apple.com/article.html?artnum=107451)
Setup the AEBS
With the network components powered down, set up the AEBS, using the AirPort Admin Utility, connect your computer directly (using an Ethernet cable) to the LAN port of the AEBS, and then, try these settings:
AirPort tab
- Base Station Name: <whatever you wish or use the default>
- AirPort Network Name: <whatever you wish or use the default>
- Create a closed network (unchecked)
- Wireless Security: Not enabled
- Channel: Automatic
- Mode: 802.11b/g Compatible
Internet tab
- Connect Using: Ethernet
- Configure: Using DHCP
- WAN Ethernet Port: Automatic
Network tab
- Distribute IP addresses (checked)
- Share a single IP address (using DHCP & NAT) (enabled)
Once you verified that you can get Internet access for all of your computers, you should secure your wireless network. To do so, I suggest that you make these changes:
AirPort tab (optional)
- Create a closed network (checked)
Change Wireless Security
- Wireless Security: WPA Personal
Base Station Options - WAN Ethernet Port
- Enable SNMP Access (unchecked)
- Enable Remote Configuration (unchecked)
- Enable Remote Printer Access (unchecked)
Wireless Options
- Transmitter Power: 10%
Access Control tab (optional)
- + <add the computer(s) that will access this wireless network>