Outlook won't re-connect to exchange after network is re-connected

Solution 1:

I have the same problem. I've found this: http://office-watch.com/t/n.aspx?a=1562 I haven't tried yet because Outlook just connected. It basically say:

In Outlook 2010 go to the Send/Receive tab and click on ‘Work Offline’, wait until the status bar changes from ‘Trying to connect’ to ‘Working offline’. Then click ‘Work Offline’ a second time, Outlook should then try to connect and, hopefully, succeed after a few seconds.

Edit: I tried this a few days ago and it worked like a charm.

Solution 2:

I have the same issue. As mentioned above, it seems to be related to the DNS cache, so go to command line (run program > cmd) then type in the following command and press Enter:

ipconfig /flushdns

Worked for me.

Solution 3:

I have also had the same problem. It seems like the it could be happening when the mail server is set up with a domain name entry that has different values when inside the VPN vs on the Internet.

Easier set-up for the outlook admin, but you have to wait until the cached DNS for the mail server is flushed from your system.

I turned off caching exchange data and restarting outlook. Not always 100% success but seems to work a little better than waiting it out.