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So i've got a ZTE H220N router downstairs (provided by my ISP) which works excellent. However, a few floors upstairs, the signal is pretty weak. So I've got a 300Mbps Wireless N Access Point, the TP-Link 'TL-WA901N(D)'. For as far as I've experienced yet: It works problematicly. However, I can't return it (anymore), so i'm stuck with it and I'm not spending any more money, so that's the hardware to use.
Well, what's problematic: Somehow when I turn this thingy on, TV (Internet TV) downstairs doesn't work anymore, getting no signal. Somehow the second router/repeater interfers with it. And I'm 100% positively sure that it's the TP-Link. Though, Im also sure it can be solved by changing the configuration of the router.
So let's get on-topic.
First question. Router two is connected by a LAN (UTP 6) cable to the main router. The second router will cast wireless signal to all devices. There isn't any wish for an additional configuration, apart from the original one; it doesn't need to work different compared to the main one. So as far as I'm concerned: It should work exactly the same.
So question is: What operation mode should the second router/repeater be on; Client mode, Access Point, Repeater, Universal repeater, Bridge with AP.
Second: What of the other configuration (SSID/Channel/IP/DHCP (on/off)) should be exactly the same // Completely different?
I'm sure that'll solve pretty much it.