Vodafone new connection - strange network issues.

Hi everyone,

Not sure of the best place to post this, so going to post it in the Vodafone forum and the Home Networking forum.

Went live yesterday with Vodafone Gigafast. Getting the router itself was a real saga, the one intended for me is sat at my work address with no means of retrieving it under the current circumstances. The router in use here was a spare one given to me by the installation team.

It's the THG3000

At first, everything I connected worked fine. However, during the afternoon one PC stopped being able to load web pages, then overnight, another PC carried out it's daily scheduled reboot, and after this reboot, FTP stopped working and no web pages would connect.

The setup here is:

Main laptop. W10
This is connected via Ethernet and all internet services still work fine. I have had no problems with this machine.

Upstairs PC. W10
This is also connected via Ethernet. Currently a couple of bits of software (one is Anydesk) still work but all web browsers time out. Very occasionally web pages will work briefly but not for long.

Upstairs Laptop. W8.1
This runs my weather station and uploads to my website via FTP. Worked fine on connect via Wifi yesterday, but stopped working after a reboot as scheduled at 0300. Nothing I have tried will make the connection work at all now.

Iphone.
No access to Internet

Ipad
No access to Internet.

I have been into my VF account settings and there is no content control enabled.
I have tried putting Google and Cloudflare DNS settings on the affected devices, as well as enabling automatic DNS settings.

I have rebooted the router, and I have also tried a factory reset.

Nothing will make any device get Internet traffic other than that specified in Upstairs PC, and Main Laptop, even though all devices will connect to the router, tell me they are connected to the Internet, allow me to access the router settings, but won't pass any browser or FTP traffic.

My BT line is still active until I get it decommisioned, and all devices work fine when connected to that, so I do not believe it is a problem with the devices.

I am at a loss to know what to do next, and can't yet face yet another session on the phone to Customer Service having had several hours of that this week.

Can anyone please give any pointers as to what else I can look at?

What IP address and DNS addresses are the various devices being handed out?

Can the devices see the Vodafone routers web page.

Just seen there is a duplicate post so head over to https://forums.thinkbroadband.com/vodafone/t/4640959...

where others are already helping.