WiFi setup in a small business with access points

I am setting up WiFi in a new small business (all walls and ceilings open).  The building is 70ft long by 25ft deep.

floorplan.jpg
I will be using Time Warner cable as my internet provider.

I am planning on installing 2 or 3 wireless access points in the main hallway.  I am running Cat6 cable in the ceiling to support PoE Access Points.

My question is.... what do I need to connect from the Time Warner cable modem to support the access points?

Do I need to have a standard WiFi router (ASUS, Linksys etc) between the Access Points and the cable modem?  Or do I just install a switch such as TP-LINK TL-SF1008P ( http://www.amazon.com/dp/B003CFATT2 )?  Does a switch provide the DNS/IP information from Time Warner?

Is there a recommended brand of Access Point?  
   Cisco is about $228 ... http://www.amazon.com/dp/B00DDWT6NY
   TP-Link makes one for $37 ... http://www.amazon.com/dp/B002YETVXC

Do the square Cisco ones have to be mounted flush to the ceiling or can it be mounted on a wall?

Thanks in advance!
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James TalvyAsked:
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David Johnson, CD, MVPOwnerCommented:
ubiquiti unify access points are very good
UniFi AP (3-Pack) $199US https://www.ubnt.com/broadband/#airmax:hardware
James TalvyAuthor Commented:
Thanks for the suggestion on AP but I really am asking to understand how it connects to the Time Warner Cable Modem.... what goes in between them?
Tyler BrooksNetwork and Security ConsultantCommented:
On some level that depends on the access points, some consumer grade routers can be configured to work as an access point and they take their DHCP/DNS info from the router they plug back into (in this case I would assume your time warner modem.

I would in that case you could simply use a switch to connect them all. If your time warner box is just a modem not a router then I would look at getting a business class router ie) sonicwall or watchguard and buying their access points which are designed to work with their routers. In my experience this are often easier to manage and less likely to cause issues on your network.
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James TalvyAuthor Commented:
Time Warner has an option of using their Cable Modem for WiFi but I don't plan to do that... just use it as a DOCSIS 3.0 Cable Modem.

So you are saying I need to connect a Cable/DSL router to the cable modem (such as http://www.amazon.com/dp/B003CFATSS ) and then from there I simply use the access points (with PoE injectors as necessary)?

I am not familiar with sonicwall or watchguard... they seem expensive from first glance.

Do you think this would work?
   Cable/DSL Router: http://www.amazon.com/dp/B003CFATSS
   PoE Switch: http://www.amazon.com/dp/B00CXTK90W
   Access Point: http://www.amazon.com/dp/B004XXMUCQ

Actually that access point comes with a 24V PoE Injector so if I only use one AP I wouldn't need the switch.

Thanks!
Tyler BrooksNetwork and Security ConsultantCommented:
I would think it should, I've never used Ubiquiti ap's so I won't pretend to know a lot about them. One thing I would point out is that your access point supports up to 300Mbps but the lan ports on that router are only 100Mbps (I would as a rule always buy gigabit, usually there isn't a huge price difference and it helps future proof if nothing else).

Sonicwall's and Watchguard's are business class equipment and are definitely a lot more money (and are trickier to setup) but in my experience tend to be more reliable and more secure. (just as an fyi)

You need to make sure you know if there modem/router is configured for DHCP, if it is you either can them to turn it off or turn it off on your router. (assuming that you don't have an actual dhcp server on premises) If you have two dhcp servers both trying to act independently on the network you are going to have nothing but issues.
James TalvyAuthor Commented:
We should consider this environment an expanded version of a home WiFi setup... DHCP is provided by the Router as I understand it because it get the one address from the WAN port and then provides addresses to all connecting.

This is not a "real" commercial business like a finance company etc.... it is going to be rental space for artists so it is purely to provide internet access.  We will never be paying for Gigabit access...

Now that I think about it I have a followup question .... is there functionality in some routers to prevent one network host from hogging all the bandwidth?
Tyler BrooksNetwork and Security ConsultantCommented:
Yes its possible to do this with certain routers, generally you are going to want to find one with a bandwidth control feature. This allows you to dictate the maximum bandwidth they can use up or down. I have also seen this rolled in the QoS feature on certain routers.

You may also want to consider looking at a router with gigabit lan ports in case anyone wants to share files inside the network, I definitely get what you are saying about no one is looking to pay for a gigabit external connection, but the difference in local traffic on the network can be really noticeable between gigabit and 100mbps.

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