maemo.org Bugzilla – Bug 9452
Incorrect TDC GPRS APN leads to IMAP connectivity problems
Last modified: 2010-03-08 20:06:57 UTC
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EXACT STEPS LEADING TO PROBLEM:
Preconditions: Internet connections not created automatically and emails or not
checked automatically, either.
1. Connected to the Internet over WIFI (my home WLAN).
2. Started Modest to connect to my IMAP server and checked my mail. This
3. Disconnected from my WLAN and connected to the Internet over 3G (by means of
"TDC www 3G+GPRS"). This worked.
4. Tried to open a SSH connection to my IMAP server. This worked.
5. Started Modest again to connect to my IMAP Server. This connection very
often failed (and without warning - the only sign of failure was that the "Last
Updated" time stamp for my email accounts wasn't chanced). Lately, it started
to fail consistently.
Connecting to my IMAP server to check my emails should succeed as I've opened
the appropriate port (993 for IMAPS) in my firewall. And if not, an appropriate
warning should be provided.
Connecting to my IMAP server on port 993 failed without warning.
A week ago: 1/5. Now: Always.
EXTRA SOFTWARE INSTALLED:
I found that /etc/operator_settings contained the following line:
238 1 TDC Mobil INTERNET TDC www 3G+GPRS wap
That is, the APN for my provider has been set up to be "wap". Unfortunately,
this is the APN for WAP access and not for general internet access (some
operators apparently block select ports on WAP access points). Once I corrected
the APN to be "internet", everything worked as expected.
I can see that several other operation settings in /etc/operation_settings have
been set to use "wap" or something similar as the APN. Seems odd for a device
that doesn't feature a WAP browser. It would be good if Nokia could check that
this is actually correct as many other N900 users will otherwise potentially
experience mail problems and similar.
Also, I would recommend that Modest is changed to report *all* connection
problems. The absence of any warnings in the described scenario increases the
severity of the problem.
Hi Bjarne, thanks for reporting this!
Duplicate of bug 9272?
Argh, true. Thanks for finding it!
*** This bug has been marked as a duplicate of bug 9272 ***