1 - regarding ID 1463458.1, Documentation says about Connection attribute the following:
"0 or no value - Indicates that the default value is used.
The default value is the lesser of 2000 or the number of semaphores specified in the SEMMSL kernel parameter.
An integer from 1 through 2000 -The value represents the maximum number of connections."
In your case, the timesten choose 2000 value (2000 < 2048). Even though the support says that it works in >11.2.2 you can check it easily by adding the Connection attribute in your DSN. Like this Connection=1900
2 - There is some Problems with PLSQL setting, but you didn't mention it, so just in case
PLSQL_MEMORY_ADDRESS - ID 1364564.1
PLSQL_MEMORY_SIZE - ID 12882032.8