Full fibre with homehub2

[stevenprigg78]

Spoiler

I’ve had a homehub2 for many years, and with adsl (aside from some infrequent modem resyncs) never had any problems 



I’ve got quite an elaborate home automation system, homeassistant, solar and battery, ev charger.



up to having full fibre installed, no issues 


Shortly after having the fibre modem installed, and connected, we now suffer frequent hub restarts and loss of connection.

Both a “green light” reboot and and “orange light” loss of connection


I’ve contacted bt, they sent a new homehub2,   No change after installing.



I’ve checked with my neighbours and they also report a very unstable connection.


my network and setup hasn’t changed at all over the upgrade to full fibre.

it was rock steady stable up until the fibre change over.



openreach are coming out Monday, although I don’t have a permanent fault, just intermittent drop outs and hub reboots



what on earth is going on?

[iniltous]

You need to be looking at the ONT , if the LOS light comes on (loss if signal ) that’s clearly a problem or if the PON light flashes that also is an issue , the router lights in some respects secondary as if the PON has an issue then the router is simply responding to that (in other words if the Openreach network drops the BT router will also drop ) …if neighbours are also having issues that suggests it’s not specific to you but the splitter back to the headend , if that’s the case the repair probably don’t need you to be home.

[stevenprigg78]

Can the fibre modem prompt a full hub reboot (green light dropout?)

nothing, and I mean nothing in my network has changed since the fibre upgrade.

its the only variable 

[WSH]

As iniltous says, if your neighbours are having similar problems then it suggests it is the network outside your house.

However, if the hub is restarting...

You say you've had a new hub.  Did you change the power unit or is it still the old one?  It may be a failing PSU.

[stevenprigg78]

Yes, swapped the power supply as well

can the fibre modem prompt a hub restart?

[WSH]

It could cause a resync, hence the orange light.

I don't believe it could cause a restart, the green light.  That suggests a power problem.

[stevenprigg78]

Yeah power supply swapped as well

no problems at all until fibre swap

[Michael_D]

Hi @stevenprigg78 

Hopefully the engineer can get to the route of the cause tomorrow, but if it does continue beyond that, I'd recommend getting back in touch with our tech guides so they can look into this further.

Michael

[pddco]

As others have said, with your neighbour also affected it sounds like a local fibre network issue. Yet the restart of the hub seems odd, but just checking all bases. Are the HUB and ONT plugged into the same double socket or extension lead. If so there’s always a chance that there may be a dodgy extension lead or socket? 

[stevenprigg78]

Dodgy in what way? none are on extension leads 

the hub is on exactly the same AC outlet it has been for years and years with no issues 

brand new hub and brand new power adaptor