Two APs with same SSID

LlamaThumper

Dear all,
Apologies in advance for this noob question, but, what is the best setup for having two APs on with the same SSID? I have two separate floors and have the issue that the devices downstairs 'hang onto' the APs upstairs, resulting in a bad signal. 
Is there any standard way to avoid this?
I currently have this device upstairs:
https://www.tp-link.com/us/business-networking/ceiling-mount-access-point/eap225-wall/
And this one downstairs:
https://www.conrad.com/p/devolo-business-solutions-wifi-pro-1200i-poe-wi-fi-access-point-12-gbps-24-ghz-5-ghz-1426120
The one upstairs is newer and was thinking of simply getting a second one, replacing the one downstairs in the hope of solving the problem. 
i could also get a 'controller' but understand that might be overkill for two devices. 
so, in summary, is there any way of dealing with the 'handover' effectively between APs?
Thanks in advance for any hints.

LlamaThumper

Dear all,
Apologies in advance for this noob question, but, what is the best setup for having two APs on with the same SSID? I have two separate floors and have the issue that the devices downstairs 'hang onto' the APs upstairs, resulting in a bad signal. 
Is there any standard way to avoid this?
I currently have this device upstairs:
https://www.tp-link.com/us/business-networking/ceiling-mount-access-point/eap225-wall/
And this one downstairs:
https://www.conrad.com/p/devolo-business-solutions-wifi-pro-1200i-poe-wi-fi-access-point-12-gbps-24-ghz-5-ghz-1426120
The one upstairs is newer and was thinking of simply getting a second one, replacing the one downstairs in the hope of solving the problem. 
i could also get a 'controller' but understand that might be overkill for two devices. 
so, in summary, is there any way of dealing with the 'handover' effectively between APs?
Thanks in advance for any hints.

Marc

@LlamaThumper , no its generally not a good practice unless you are using a mesh setup or your router support specifically using the same SSID between multiple access points.  The two unrelated nodes will clash if they are not meant to support this.  Mesh networks specifically support seamless roaming, assuming the host your using does as well and that will allow you to roam and the device your using find the most appropriate node to connect to.

Bud80

It's the endpoint that makes the decision to roam, so even if you were to go with a controller/mesh solution, you might still run into the same problem to where the endpoint will "stick" to the old AP with a much weaker signal.  We've had to deal with this in the Enterprise since the inception of 802.11.  Could you simply disable/reenable the adapter to force association to the closer AP or will the type of applications you run not support that?

LlamaThumper

Thank you both! Will be looking into this.

DavidF

Another important point here is that on many devices, Roaming Sensitivity can be adjusted. Roaming Sensitivity (or Agressivenes) is how quickly your device/wifi card will change from one AP to another. Here is an article that explains it for Windows and how to adjust this setting. 
https://www.thewindowsclub.com/wifi-roaming-sensitivity-aggressiveness
Fully agree with the Mesh solution, which may be better all around. Many of the mesh routers will adjust the strength to minimize overlap, which makes it easier for your device to switch. 
Hopefully, this helps. 
David

PeterP

The other thing to try is to turn the transmit power down a bit on both AP's.  I have a similar situation, two story home with one AP upstairs and another downstairs. Also, the AP's should be configured to use different channels, otherwise you will get signal interference.

RainCaster

I have three WiFi routers in my home (one on each floor) and another in the detached office. All have the same SSID & password, but different channels & IP addresses. Works wonderfully well and expands good WiFi coverage out about 150 feet into the front yard. Make certain that you use different channels on each router, and that needs to be done for 2.4 & 5Ghz bands.

RainCaster

The_Vorlon said:

RainCaster said:

I have three WiFi routers in my home (one on each floor) and another in the detached office. All have the same SSID & password, but different channels & IP addresses. Works wonderfully well and expands good WiFi coverage out about 150 feet into the front yard. Make certain that you use different channels on each router, and that needs to be done for 2.4 & 5Ghz bands.

Routers or access points - not sure why you would want 3 separate routers.  A single router and multiple access points is the best practice unless you are separating networks for some reason.   You are correct in using different channels - though folks using non-standard channels like 2 , 5 , 7 are just creating more problems for themselves.  Depending on the building construction, power balancing for each access point is also recommended, even if you are on the proper channel boundaries for 2.4 - 1, 6 and 11.  
I currently have 7 access points - 3 ceiling mount, 2 in-wall, a mesh point and an outdoor.  Average coverage across the house is -48 dB and the 2.4ghz only uses channels 1, 6 and 11 - power balanced to avoid interference - and seamless roaming hand-off enabled.  
Each AP broadcasts 2 SSID - a user SSID and a GUEST SSID, plus a 3rd 'hidden' SSID for IoT - each with a separate VLAN.  

I'm using the wrong terminology. I meant to say APs, not routers.

RainCaster

All are different vendors, wired through multiple switches. Only the base switch is managed, and that is where the firewall machine ties in, along with one of the APs, the NAS and some other servers. About the APs- one is Ubiquity, the others are TP-Link & D-Link. As I can afford it, I will replace the others with additional Ubiquity APs.

RainCaster

In our house, there are no WiFi6 devices- yet. That standard is rather new and as you pointed out, implementations are rather sketchy at present. For us, the current WiFi speeds are more than adequate. We are seeing more than 100Mb in the house, and 30+Mb out in the garden where I sometimes work. I am still debating the value of adding another management endpoint to my home network, so I have not installed a Unifi controller yet.

RainCaster

I use the Unifi app, and manage through the "Stand-Alone Devices" option. VLANs are a nice way to manage when you have visitors, but right now (pandemic world), I have very few visitors, and they are all trusted on our network. Maybe I will complete the move to Ubiquiti APs and the gateway in the next three months. Still investigating how well that gateway will work with my Untangle firewall.