This tend to drop the speed for all users. Here's my preferred setup for range extension without the headaches and recalls for extenders. Picture follows.
Testing at peak hours is not a good test. You are testing how much he can eek out during peek and not what he'll get when there are less users. So I have to write that's just a a test of that scenario and not a good test at all unless you want to prove you need a second WAP.
Not to duplicate the classroom but WiFi is shared space and takes all players to cooperate. If one WiFi device breaks a rule and gets piggy, well game over. Or if, and this is a nasty thing to do, set a machine to 802.11b and tank WiFi speed as the WAP downshifts to send a rather long (in time) packet. For this reason I always disable 802.11b and may elect to move to all 802.11n or 802.11ac only setups.
Hi Everyone, I am a landlord that provides internet to my tenants. I am currently trying to solve what seems to be an unusual internet issue. At one of my properties I have 7 individual tenants spread out over three floors. The modem and wireless router are on the 3rd floor, at the front of the house. The wireless internet can make it all the way to the basement so has good range. One of my 7 tenants has been experiencing internet issues (while none of the others have). This tenant is located on the 2nd floor but towards the back of the house. Sometimes his internet seems to be working fine and other times not. The times it wasn't working seemed to be during peak internet hours, when the majority of the tenants are home. Because it was at peak hours (or seemed to be) I opted to pay for faster internet service... I upgraded from 25 Mbps downstream and 5 Mbps upstream to 60 Mbps downstream and 25 Mbps upstream. --This unfortunately did not fix the issue. At peak hours when he runs a speed test (even after the upgrade) he has been experiencing as little as 0.5 Mbps 
I had him crosstest on all of his devices, ps3, phone and laptop (not sure of make and models of laptop or phone or gen of ps)... slow on all. The next step I was considering was purchasing a range extender. I'm just afraid to and then not have it fix the issue. Another factor I recently discovered is the tenant in the room next to him has both a laptop and a very nice tower (once again not sure of details of models), could this be interfering or stealing the wifi? --HELP!!! & Thank you in advance.
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