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Second router with AP mode and same SSID with Smart Connect

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lucianor:
Model Name: DIR-880L
Hardware Version: A2
Firmware Version: 1.07WW

I have Smart Connect enabled on this router, so I only have a single SSID, let's say DLINK-WIFI
I currently have another TP-Link router in AP mode (running Gargoyle -openwrt-like) connected through a LAN cable. That router is broadcasting two different SSID, say GARGOYLE-2.4ghz, and GARGOYLE-5ghz.

I don't like this setup because it basically does not allow me to use the Smart Connect through a different range than the D-Link, and the range of the D-Link is overlapping with the other routers, especially with the 2.4ghz frequency - for obvious reasons. That means sometimes I'm connected to the D-Link with some back and forth with the other TP-Link router.

I'm considering buying ANOTHER D-Link DIR-880L ($45 dollars used) and have the same SSID setup on both, and have them connected in AP Mode through the LAN cable. I have read about bridge and relay, however it's more focused on bridging/relaying through the wireless - I will have an ethernet cable between both - so my setup is all about extending the range of the Smart Connect feature with another router broadcasting same SSID.

Is that possible? Would Smart Connect understand that I'm closer to the second router, and automatically select the best frequency and router? Using the same SSID on both routers is going to cause any issues?

FurryNutz:
I haven't tried two smart connect wifi routers under one roof yet.

I presume it may work if smart connect can keep each unit on far separate channels. In most cases if using manual channels, the 1st router would be put on channel 11 and the other would be put on channel 1 on 2.4ghz. Same far channels go for 5Ghz.

However Smart Connect handles things automatically. I presume it should work.

lucianor:
Yes, they indeed work, however the connection handoff experience between the two routers is not as smooth as the TP-Link routers with Gargoyle firmware - my old routers.

Before, if I was taking a Skype call and walked upstairs/downstairs, connection could be mute for a couple of seconds, but it wouldn't disconnect the call. With the D-Link routers, the calls are being disconnected.

Not sure what can I do to help on this scenario.

FurryNutz:
Well that's a roaming issue and that depends on both router and client HW handling of switching between signals and radios. The time it takes when your crossing in to a different signal is probably too long for the connection/app to wait thus the app closes the connection. Ya, not sure about this as well. I don't roam around when I'm talking on the phone unless i'm in a general same close area of either wireless AP source signal.

lucianor:
Right, but sometimes my wife kick me off of the living room so I have to go to my office...  ::)

I agree it depends on the client, but I made sure I was using my Dell laptop on both cases to compare results. But I found something that might be related: SmartConnect is assigning the same wireless channel on both routers. I scheduled a daily reboot within 30 minutes of difference, expecting that the SmartConnect on the second router would probe the wireless network and assign a separate channel, but that is not what I'm observing though.

These are the routers after boot: https://imgur.com/a/KalIP1j

If I go to Settings > Wireless, and change whatever on and off and click Save, channel is adjusted on the second router: https://imgur.com/a/fKcf3Ko

First, could this be possibly related to my roaming problem?
And second, could this be a bug on SmartConnect no probing channels at boot, just as I update the wireless config?

Appreciate the help so far!

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