unable to remotely access files via vpn

[Corm]

Hi,

I have moved offices and chose bt business.  I was sent a smart hub 3, which all works fine.  I have a synology VPN server that I have tried to access externally and have been unable to.  I had no issues with this before,  I have opened all the required ports on the smart hub but still can't seem to access the vpn.

any advice?  Do I need to use a different router?  if so how do I set this up?

[kelper]

Have you tried turning off the hub's firewall, just temporarily?

[evansnp]

You say that you have opened ports, but have you set up port forwarding, so that the VPN traffic is sent to the NAS?  It definitely works as I have this setup.