Anytime you reboot a router, you need to refresh the network by rebooting everything else due to the router having an out of date IP allocation table.  Otherwise, the router starts handing out IPs which are still in use from before the table was wiped, causing duplicate IPs on your network.  Which is why rebooting a router as part of "routine system maintenance" is a bad idea, unless one does a full network refresh at the same time

Thanks a lot jgatie all sorted now, basic info I didn’t know - not very IT savvy.

Cheers

micromac