i found the log in appdata\local. i see there is a proxy auth problem (407). how can i fix it?

there is no log file. only licence.

works with IBM WebSphere MQ Explorer 7.5

yes

same credentials. in this case no password is needed. only user.

fresh install - during initial connect to MQM. ("Connection failed (2035-2035)"). With IBM WebSphere MQ Explorer everything is fine.

Got the same error with 1.7.2. Any ideas?