Network Error Message: 'Unable to send HTTP request to /api/members/information.xml?lastRunVersion=1

Hi When I try synchronising Mendeley I get teh following error even if I have internet connection. Please help. Network Error Message: 'Unable to send HTTP request to /api/members/information.xml?lastRunVersion=1.8.4&av=1.0&id=MendeleyDesktop&cv=1.8.4&l=en-US&ins=835f3c23-a1d2-4940-b68e-9d39d7278391&osv=Win-90' Thanks in advance Nimrod