akonadi imap and vpn's

Hello

I'm having quite a bit of trouble w/IMAP in Akonadi.

One error often occurs when I use VPN, which I have to do while traveling 
abroad. One of my IMAP accounts frequently refuses to work (status reported by 
Akonadi: "Server not available") if I don't have the VPN activated. Then 
again, sometimes it works fine without the VPN activated. The main point is 
that when it doesn't work, switching seems to fix the problem.

The other error occurs with another IMAP. Akonadi reports,

    Could not connect to the IMAP-server [server name]
    Could not read the password: user rejected wallet access.

This sometimes starts working when I re-type the password... but not always. 
Sort of opposite to the first case, if it's working and I switch the VPN, it 
will typically stop working.

Most importantly, they rarely seem to work at the same time, restarting 
akonadi and/or the agent never fixes it (it's more likely to crash akonadi 
and/or kontact).

Any ideas what is going on here? Details on kmail, akonadi below my name.

regards
john perry

Fedora 25
Linux version 4.11.3-202.fc25.x86_64
kmail 5.4.3 (16.12.3-1.fc25)
akonadi 5.4.3 (1.13.0-102.fc24)
I'd list the kernel, too, but that doesn't seem to matter much

-- 
John Perry + University of Southern Mississippi
Department of Mathematics, Box 5045
Hattiesburg, MS 39406

Cogitor, ergo sum. -- Franz von Baader