Netgear router firmware is up to date and all updates on the N110 are set to 'auto' (because teenagers are not too good at housekeeping!!).
So, gents, what do you reckon - in simple terms.
Will try disable/enable in the devices mgr later - because at the moment, it's working ok!!! But, happily, it wouldn't get an IP address when on the PC World's wifi network. They suggest giving it to them to restore factory settings and if it still doesn't work - back to samsung (after the end of term!)
Regards all
mcdhu