Solution #1 Try accessing another website, if you cannot access another site then there may be internet connectivity issues. Contact your I.T department.
Solution #2 Log in using your smart device and the smart device data connection.
Solution #3 The JESI website may have been blocked by your I.T Department, contact your I.T Department to confirm. If this is the case, contact us at email@example.com and request a list of websites required for JESI to function. Your IT department will then allow your organisation to access JESI.