@bubble78 

Just to confirm - have you configured a VLAN ID?  Most carrier fibre networks require one, and it’s easy to miss.   Other Internet forums indicate UK FTTC connections commonly use VLAN 101 but you may want to check with Sky.

@bubble78 

Thanks for that.  I have not configured a VLAN - I was following instructions provided by Dreytek.  They do mention setting the VLAN

"If it’s a VDSL connection that's connected directly (not using a VDSL2 modem), go to [WAN] > [General Setup] > [WAN1]:

• Set the VLAN Tag Insertion setting to Enable

• Set the Tag Value to 101"

I'll try this tonight.

However, they also state that the router has to support MER / DHCP Option 61

I cannot remember if I've tried with / without the VLAN... so I will repeat this evening.

Hmmm.

No joy.  I checked and by default the Customer tag is set to 101 when configured in bridge mode.  I've tried using the Service tag, with the customer tag turned off.  Didn't make a difference.

I've got DHCP server turned off on the Vigor 130 settings (should allow the Deco to serve) - the Deco is dishing out addresses, but I cannot see which address belongs to the modem.  I've got 18 connected devices and have (last night) tried all of them and the modem didn't turn up.

If someone has a Deco and Vigor 130 working with Sky FTTC, I'd love to know what settings you are using.  I think I've tried all the relevant ones to no joy.