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Category:FTTP Faults

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A working Openreach ONT
An older working Openreach ONT

Status lights on the Openreach ONT

  • See Openreach FTTP ONT for more information about the lights and their meaning on the Openreach ONT.

No connection

  • Check the Openreach ONT:-
    1. the Power light should be on - if not check power cable/switch etc
    2. the PON (Passive Optical Network) light should be on - if not, check the cables, try a power cycle of the ONT and get in touch.
    3. the LOS (Loss of service) light should be off - if not, check the cables, try a power cycle of the ONT and get in touch.
    4. the LAN or PORT1 light should be green - if not check your connection to your router, swap the cable

If lights are as they should be, then the Fibre and ONT should be working OK, time to:

  • Check your router:-
    1. Check the PPP username/password on the router, and restart the router just to be sure.
    2. Try a laptop/PC plugged in to the ONT instead of your router - set up a new network connection of type PPPoE and use your xxx@a login and password to connect: see PPPoE on a Computer for help in setting up PPPoE on a Computer.
    3. ...get in touch

Slow connection

  • Try a wired connection from your computer instead of WiFi to rule out any WiFi problems.
  • Ensure the router is capable of the speed of the circuit - eg, maybe you have a 1G service but an older router?
  • Check/swap the cable between the Openreach ONT and your router - ensure it's a 8-wire CAT5 or CAT6 cable - not one with 4 wires as these will run at 100M and not 1G.
  • Use our speed test to check up and download speeds: https://speedtest.aa.net.uk - try tests at different times of the day as this can help track 'peak time congestion'
  • Try a power cycle of the ONT.
  • Check the CQM Graphs, via the Control Pages, to see if it is slow due to lots of traffic.
  • Try a laptop/PC plugged in to the ONT instead of your router - set up a new network connection of type PPPoE and use your xxx@a login and password to connect, and run a speed test.
  • ...get in touch.

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