unable to access teamviewer through mobile data but only with same wifi

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HI All ,

I am facing this issue since long time my laptop is primary at home connected to wifi with TeamViewer 13 windows laptop.

sometimes when I wanted to access from anywhere from my phone  android or iPad it will not even login only I can see is login screen over mobile data although it has 4G i can do all the work from it but no TeamViewer   only it need wifi  not sure what went wrong earlier it was working fine before 3,4 months over #G mobile data 

really tried to call them no one responding trying to create ticket it ask license no which I  don't have not sure what i will do

thanks in advance

regards

ankur singh