Help Needed On Wan/ethernet Port On Modem

[Retrochic]

I've just upgraded internet to BT fibre Broadband and got a new modem . I have a vodaphone sure signal and the engineer put the Cable from the sure signal into a WAN socket on the back of the modem. The sure signal is now not working. Instructions online are advising that the sure signal is attached to modem via an ethernet cable into a spare ethernet socket on the modem . I've tried both ways and got a bit of a result when using the ethernet socket ( lights on sure signal flashing but then went dead again). Any ideas?

[Zacs-Master]

Some (slightly confusing) advice on here:
https://community.bt.com/t5/Connected-Devices-Other/BT-Infinity-Port-Forwarding-and-Vodafone-Sure-Signal/td-p/61730

Do they have to be connected?

[Retrochic]

Zacs thanks for your reply. I have now sorted the problem by connecting the Ethernet cable to an Ethernet socket on the back of the Modem, instead of the WAN socket, and leaving it to sort itself out overnight.

You are correct in that the newer versions of the Vodafone sure-signal box plug directly into an electric socket and use a wireless connection, but mine is version 1 which uses an Ethernet cable. I would upgrade, but I got this one 4 years ago as a freebie from Vodafone after OH was sold a contract by them and then we realised the signal was very poor where we live. They do work very well despite terrible reviews on certain Forums.

Anyway thanks for getting back and I hope this reply is a bit less confusing than some I read last night on the 'Techie' forums lol!