VPN not working

[#1]

I can not get VPN to working on the internal network, it used to work fine on SKY why not on Plusnet?

[#2]

Different IP address range?  Plusnet routers typically have IP address 192.168.1.254 whilst Sky routers typically use 192.168.0.1 .

[#3]

Nope - i've got the correct IP address, and I assume that the routers firewall would not affect anything going though it on this side.

I won't even reply to a ping

[#4]

Not all machines will reply to pings.

https://en.wikipedia.org/wiki/Ping_of_death

[#5]

It did until I moved to plusnet

[#6]

sounds like you need to speak to your work IT.
it could be that they are blocking your incoming connection.