Screen Sharing Failed to Connect Please Try Again with different credentials

Very strange behavior from Screen Sharing - which I have been using across multiple Mac system and OS versions for years. I have one system that is 10.8, several that are 10.7 and a 10.6. Most of the time it works as expected - the weird thing is that every so often I get a failure and please try different credientials but that do not get any way to enter other credientials.
Even stranger - sometimes - after failing to connect mulitple times - if I connect with LogMeIn - then Screen Sharing works.
In some cases I am able to connect no issue - then disconnect - and opps need to check something else and unable to reconnect.
I have looked in KeyChain access - and preferances - and other places - cannot find where Screen Sharing is storing info bits that might need deleting to clean things up.

Perhaps stranger still - one of the systems - a Mac OS X Server 10.7 - which is headless - had not been rebooted for nearly 100 days - so I rebooted it - and no can connect to all remote systems on the first try - repeatedly - even though I have not changed anything on or rebooted any of the others. And the OS X Server is NOT my domain, or DNS server.
except now Time Machine is not finding the backup disk on the server - which has been workign for the past year - and I did not delete the time machine stored keychains. ugh.

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create or replace PROCEDURE SEND_MAIL
(name_in IN Varchar, surname_in IN Varchar, email_in IN Varchar)
IS
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Message was edited by:
veledrom

Sounds like you have an exception in the code and not protecting the resource - which means resource leakage.
In your case, not closing TCP socket connections to the SMTP server. This then results in the SMTP server refusing to allow you more connections.
Or.. there is simply too many concurrent connections from different users/sessions/processes at the same time and it cannot service your connection.
PL/SQL does not specifically support a resource protection block. These are typically in the form of:
allocate resource;
try
use resource;
finally
release resource;The intention being that should sosmething go pear shape while using that resource, the resource is protected and released - thus preventing that resource from leaking all over the code and the server.
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