My gmail account stopped syncing on the wif-fi from the e-mail App on my Samsung Galaxy S6 for the past week. My tablet is still working fine and the Gmail account syncs fine on the S6 when wi-fi is off at my house. If I use the Google Gmail app, I can sync the e-mail on the wi-fi at my house. It seems to be a problem between the wi-fi at my house and the e-mail App on my Galaxy S6. Any suggestions?