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All replies
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Helpful answers
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Jul 7, 2016 4:59 PM in response to LValley5by Carolyn Samit,Hi,
Try a reset on both the Expresses and Extreme.
Start with a Soft reset first > Resetting an AirPort base station FAQ - Apple Support
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Jul 7, 2016 5:11 PM in response to LValley5by BigGee42,Yeah, I had this same problem when I moved to a new house.
In the old house which was smaller I used my Airport Express devices to extend the network to other rooms from my Time Capsule in the main room.
In the bigger house, the signal wouldn't stay consistent and often the Airport Express units lost the connection.
The problem with extending the network is that each wireless device has to be in range of the others, and you lose some of the signal strength the further apart they are. It's also highly susceptible to interference from walls & roofs, especially if you have an upstairs/downstairs house
What I had to do was set up a roaming network: Wi-Fi base stations: Setting up and configuring a roaming network (802.11 a/b/g/n) - Apple Support
Essentially, every wireless device provides access to the same network, but their connection to the base is not wireless. Each airport express is connected to the Time Capsule / Airport Extreme via Ethernet which ensures that the network is always available and the wireless units do not need to be in range of each other.
Now, my house was not built in the last 5 years so it doesn't have Ethernet ports in every room, but what I was able to use was a set of Powerline adapters.
These use the power circiuits in your house (which do go to every room) to create a network connection. They're not too expensive and it's worth it to have a stable network that works at full speed wherever you have a wireless router. No loss of signal!
So, the setup is:
Main room - Time Capsule connected to Internet router. Ethernet cable connected to Powerline adapter in a power socket.
Secondary room - Airport express plugged into a socket, and the powerline adapter plugged into a socket next to it. Many powerline adapters have pass-through sockets so you don't lose a power socket. The Airport Express can be plugged into this so that both devices share a single socket.
Before you switch them on, connect the Airport Express ethernet port to an ethernet port on the powerline adapter.
Repeat this for each airport express. Then follow the guide in the Apple document above.
Hope this helps!