I have Outlook 2002 running on XP on a Sony Vaio desktop. I have installed XP SP-2 and use Norton anti-virus. Everything was fine when suddenly Outlook stopped connecting to the ISP. the error msg is 0x800703E6. Additionally, on checking the email account settings, the test account feature would not work, and gives the msg 'Test account setting was cancelled'.
I have the identical configuration running on an IBM laptop and an Acer laptop, without any problem. I can connect to the ISP through those laptops without any problem. This problem on the Sony suddenly arose: it had been working fine.