gmail authentication problems

I can sign in with a normal browser but get authentication errors when accessing and attempting to use my email accounts with eM client.  It constantly asks me to reenter the passwords.

9:22:21 PM Online state: changed to online with reason NetworkAvailability
9:22:24 PM [email protected] [IMAP]  Synchronizing subfolders: For folder [email protected]/
9:22:25 PM [email protected] [GData]  Synchronizing folder list
9:22:26 PM [email protected] [IMAP]  Synchronizing subfolders: For folder [email protected]/
9:22:26 PM [email protected] [GData]  Synchronizing folder list
9:22:26 PM [email protected] [AirSync]  Synchronizing folder list
9:22:26 PM [email protected] [IMAP]  Synchronizing subfolders: For folder [email protected]/
9:22:26 PM [email protected] [GData]  Synchronizing folder list
9:22:26 PM [email protected] [IMAP]  Synchronizing subfolders: For folder [email protected]/
9:22:26 PM [email protected] [GData]  Synchronizing folder list
9:22:26 PM [email protected] [IMAP]  Synchronizing subfolders: For folder [email protected]/
9:22:26 PM [email protected] [GData]  Synchronizing folder list
9:22:26 PM [email protected] [IMAP]  Synchronizing subfolders: For folder [email protected]/
9:22:26 PM [email protected] [GData]  Synchronizing folder list
9:22:26 PM [email protected] [IMAP]  MailExceptions.LoginException: Please log in via your web browser: http://support.google.com/mail/accounts/bin/answer.py?answer=78754 (Failure)
9:22:26 PM    at MailClient.Imap.ConnectionPoolEntry.Reconnect()
9:22:26 PM    at MailClient.Imap.ConnectionPoolEntry.Connect()
9:22:26 PM    at MailClient.Imap.ConnectionPool.AcquireConnection(Folder mailFolder, Boolean idle, Boolean forStore)
9:22:26 PM    at MailClient.Imap.ConnectionContext…ctor(ImapAccount account)
9:22:26 PM    at MailClient.Imap.Synchronizer.SynchronizeFoldersCommand.ExecuteInternal(WorkerStatus status)
9:22:26 PM    at MailClient.Imap.Synchronizer.ImapCommand.Execute(WorkerStatus status)
9:22:26 PM    at MailClient.Commands.Command.Process(WorkerStatus status)
9:22:27 PM [email protected] [IMAP]  Synchronizing subfolders: Done
9:22:27 PM [email protected] [IMAP]  Synchronizing subfolders: For folder [email protected]/Inbox
9:22:27 PM [email protected] [GData]  Synchronizing folder list
9:22:27 PM [email protected] [IMAP]  Synchronizing subfolders: Done
9:22:27 PM [email protected] [IMAP]  Synchronizing subfolders: For folder [email protected]/[Gmail]
9:22:27 PM [email protected] [GData]  Synchronizing folder list
9:22:27 PM [email protected] [IMAP]  Synchronizing subfolders: Done
9:22:27 PM [email protected] [IMAP]  Synchronizing messages: For folder [email protected]/Inbox
9:22:27 PM [email protected] [IMAP]  Synchronizing subfolders: Done
9:22:27 PM [email protected] [IMAP]  Synchronizing subfolders: For folder [email protected]/Inbox
9:22:27 PM [email protected] [IMAP]  Synchronizing subfolders: Done
9:22:27 PM [email protected] [IMAP]  Synchronizing subfolders: For folder [email protected]/[Gmail]
9:22:28 PM [email protected] [IMAP]  Synchronizing subfolders: Done
9:22:28 PM [email protected] [IMAP]  Synchronizing messages: For folder [email protected]/Inbox
9:22:28 PM [email protected] [IMAP]  Synchronizing messages: For folder [email protected]/Inbox
9:22:28 PM [email protected] [IMAP]  Synchronizing messages: Done
9:22:28 PM [email protected] [IMAP]  Synchronizing messages: Done
9:22:28 PM [email protected] [GData]  Synchronizing folder list
9:22:28 PM [email protected] [GData]  Synchronizing folder list
9:22:29 PM [email protected] [GData]  Synchronizing folder list
9:22:29 PM [email protected] [GData]  Synchronizing folder list
9:22:29 PM [email protected] [GData]  Synchronizing folder list
9:22:29 PM [email protected] [GData]  Synchronizing folder list
9:22:29 PM [email protected] [GData]  Synchronizing folder list
9:22:29 PM [email protected] [GData]  Synchronizing folder ‘[email protected]/Contacts/’
9:22:29 PM [email protected] [GData]  Synchronizing folder list
9:22:29 PM [email protected] [GData]  Synchronizing folder ‘[email protected]/Contacts/’
9:22:29 PM [email protected] [AirSync]  Synchronizing folder list
9:22:30 PM [email protected] [GData]  Synchronizing folder ‘[email protected]/[email protected]/’

Hi Tyson, are you seeing an “Authentication failed” error when being prompted for your password?
Can you please try to go to https://www.google.com/settings/security/lesssecureapps and enable access for “less secure apps” and check if the issue persists?

Hope this helps,
Paul.