Router for Unifi, wireless router for Unifi

Hi guys,

Right now I am using the TM DLink wireless router (orange color) which has been more than one year and recently it seems that it has giving some issues such as hanging, disconnect my LAN connection, unable to access the admin page.

I was wondering that Im gonna change the wireless router but unsure what type of good quality router that I should buy?

Any idea guys? The router Im gonna buy will simply put the PoE username and password and I dont want to setup any VLAN such as 400/500/600 for the Unifi services.

Thanks