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I'm about to move my place of living and my company HQ at the same time to a new location. It's a 2-story building with rather thick concrete walls, and when I tried to put my wifi router/access point there I could cover one room with decent quality signal, and in other rooms I barely could connect my laptop to the network.

I'd like to have a single network inside though, not several different ones, as it easies the stuff like sharing files and accessing other's computers without setting VPNs.

I was thinking maybe it would be an option to put an access point in each room, connect them all via ethernet cables to main router - but how could I then have the same network on all of them? Wouldn't it lead to some conflicts between different points in the network infrastructure?

What is, generally, advised solution in a situation like this?

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migrated from Jan 10 '14 at 13:11

This question came from our site for network engineers.

This question is very broad, and possibly off topic depending on the equipment you're using. Check out this page with some ways to help us answer your question better. – Brett Lykins Jan 10 '14 at 12:18

Connect all the APs via Ethernet cables to a central switch, each AP on a port.

Connect the switch to the router via back-to-back Ethernet cable using one port only.

Assign default gateway ip address on the router port connected to switch, say

Disable DHCP and/or NAT (if avaialable) on all APs.

Configure ip addresses on APS (if mandatory), E.g. for 4 APs. You can use those IPs for managing the APs.

Run DHCP from the router (unless you have another DHCP Server), e.g.

This will create a single network segment for all hosts connected to the APs (or Switch in general), and the default gateway will be the router.

Hosts on this segment will now talk to each other directly via the switch.

You can use same SSID for all APs, and you can set each to a different channel (1, 6 or 11) to minimize interference.

This is a basic setup, there are other possibilities, depending on requirements.

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Thanks! Only one question though - how important is to set APs to different channels? When I was setting up a AP as repeater before I was told it should have both the same SSID and channel as the other one. This time I don't want them to overlap, right? – kender Jan 12 '14 at 7:30
It is not mandatory, but it's good practice. Each time the wifi radio needs to send data, it listens to check if someone else is transmitting in its channel. If someone else is transmitting on the channel, the wifi radio will have to wait. So, this practice is efficient usage of transmission medium and enhance overall data throughput. – aseaudi Jan 12 '14 at 9:52

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