My setup:

 

Router: Linksys EA8100

 

Range Extender: RE580D

• Via Ethernet Port 1: My Desktop

 

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I set up the RE580D using the Quick Setup guide on the RE580D's default gateway (tplinkextender.com). 

Every 15-20 minutes the RE580D completely disconnects from my EA8100 Router for about 30 seconds before automatically reconnecting back agian.

 

Here's how I've tweaked the RE580D but still the problem persists: 

RE580D Is connected to my EA8100 2.4 & 5 Ghz network.

RE580D's Extended Network is disabled.

Access Control is Off.

RE580D is set to Optain an IP address automatically from my EA8100's DHCP.

The DHCP Server on my RE580D is on Auto.

 

Solutions I've tried:

Moving the RE580D literally right next to my EA8100 Router. (Just to prove it isn't a distance issue.)

Upgrading the firmware to 'rel63483' which i got from the product page.

Messing with the EA8100's Wifi settings; Changed Channels, Bandwidths

 

Little snippets i've extracted from the Logs:

DNS:

• DNS probing failed, DUT can not get a dns server.

 

DHCPC

• DHCP detection failed.

 

NTP

• NTP detection failed.

 

WIRELESS (Theres a lot more of similar messages)

• 5G failed to connect to the front end: AUTH 6, 0.
• 5G failed to connect to the front end: ROAM 1, 4.

 

By the way as i'm typing this, the thing just disconnected agian. Haha e_e Send help.

 

Oh and just a little extra thing not sure if this matters but as I've mentioned I connected my Desktop to the Port 1 on the RE580D, yet it says I have 0 clients.