I'm travelling in Spain with a Plusnet SIM.
I can make & receive calls when I'm out & about but not within about 500m of my accommodation.
Phone shows 3-4 bars signal.
Auto connection is with Yoigo.
When I switch off auto & try manual, I can only get Yoigo 4G - all other networks are "forbidden"
Can I do anything to make & receive calls near home?
