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  • The last part if your answer us incorrect. Provided the SSID, password, frequency band but different frequencies (ie 2.4 or 5 gig band ) - preferably non-overlapping channels - and encryption are the same you can seemlessly roam between any 2 access points. Expensive gear may give you more control of logins and a tighter handover process but are not neccessary for seemless coverage.
    – davidgo
    Commented Mar 16, 2019 at 18:32
  • 1
    FYI, I seemlessly roam between an Asus router and Ubiquity AP more-or-less daily. No complex configuration or controller required.
    – davidgo
    Commented Mar 16, 2019 at 18:35
  • 1
    @davidgo I will test, last time I tried with linksys AP it was cutting, some milliseconds, but it has a cut. but we can agree that any surfing or light use you will not see the cut
    – yagmoth555
    Commented Mar 16, 2019 at 20:26
  • 2
    Methinks we agree more then we differ. Internet is packet (rather then circuit) switched, and yes, a few packets may be lost during the handoff but the [TCP/IP] connection will not break. This means video streaming will continue fine, but there may be a short disruption on a voip call (but you will not get disconnected) when switching between APs. Similarly if playing a game there might be a spike in latency but the game will continue. The IP address does not change nor should connections time out or reset. TCP streams will be OK, udp packets will drop, but the protocol allows this.
    – davidgo
    Commented Mar 16, 2019 at 20:42