I'm using thunderbird on my laptop to access my work email over imap (we're an MS Exchange shop but the server is configured for imap as well).
This works fine when I'm at work, but for some reason, since a few months, it doesn't work anymore at home. Thunderbird just sits there waiting endlessly, with no email ever getting downloaded. It has worked in the past but not since the last few months. I think the change occurred around the time that the server was switched from normal imap to secure imap, but I'm not 100% sure about that. I contacted the ICT helpdesk but they're saying everything is working normally on their end, so it's my own problem. But like I said, it's working fine when I'm at work, so the account configuration in thunderbird should be OK.
With a little experimentation I found that if I plug my laptop directly into the ADSL modem, it works normally. Only when my wireless router is between my laptop and the ADSL modem, the problem occurs.
The router in question was a Sitecom WL-176 storage router. I tried resetting to factory default settings, upgrading firmware, nothing. I also tried replacing with a D-Link DIR-615 router, no luck either.
So now I'm stumped. Any ideas? What else can I try to troubleshoot the problem?
I'm using Thunderbird version 18.104.22.168 on Ubuntu 9.10