Thanks for the answers above, highly appreciated.
Have discovered the issue with the IP card.
Connected a stand alone 5 port network switch to he router, then connected the Agility 3 to the stand alone switch, instead of directly to the router switch ports.
The Agility is now pingable, and it is connecting fine to the Risco Cloud and can be seen online via the Risco App.
The router is a bog standard Fritzbox, quite a new model with up to date firmware.
This suggests that the Risco IP card is probably not compliant with TCP/IP standards.
The configuration software ( version 4.1 ) still does not connect, although looking at it, everything the CS software does, can also be done at the panel anyway. The software just makes config backups etc possible.
Tried to update the firmware , but it asks for "special password" and accepts only numerical input. The installer pass and Grand Master pass not accepted.
Reading around, it seems if we email Risco for the firmware password, they are unlikely to supply it ???
Indeed Trustpilot rate Risco as POOR, with a staggering 83 percent of reviewers giving them ONE STAR ( it is not possible to give zero stars ).
Yes, thanks, that is what we are trying to avoid.
We all work hard for our money, it's not great to throw away working kit that cost four figures