I’m operating 2 Beryls myself, never faced an issue connecting anything to 2.4GHz WiFi but I always use the ‘most versatile’ settings.

So my advice was to set

  • WiFi mode to 802.11bgn
  • Bandwith to 20/40 MHz
    both give you a broader range of supported devices
  • channel to auto
    avoids congested frequencies

HTH!