@doczenith1 Looks like upgrading to latest modem module firmware RM520NGLAAR03A03M4G_01.201.01.201.zip as well as setting TTL to 65 has prevented me using any Hotspot data. You have to be careful with making too many settings on the router once its working because it seems that the TTL doesn't always stick and thats when it uses hotspot data instead. Just something you have to watch for but it's all working good.
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