@David-TP Thank you for responding but having rechecked your suggestions I'm unfortunately still no further. Seems to work with anotehr SIM though.

@dtmorley13 Hi - I can't get M7000 working at all with ID Mobile (connects but no internet at home or abroad, when tried on recent holiday). Have checked APN settings etc, so any help welcomed....

@currymaster Hi Any assistance with ID mobile settings for tp-link router would really help. Thanks