Please confirm that you followed all the steps in (Using Discoverer 11.1.1 with Oracle E-Business Suite Release 11i (Doc ID 1073963.1)).
Why do you need to have access to both Discoverer 4i and 11g? Discoverer 4i is no longer supported -- https://blogs.oracle.com/stevenChan/entry/reminder_discoverer_4i_desuppo
Please see the following docs.
Error While Creating Connection In Discoverer Plus - You Do Not Have Access To Any End User Layer Tables (Doc ID 1108393.1)
Cannot Login to Discoverer Integrator - No Access to EUL Tables (Doc ID 186168.1)
User with Admin Privs in Disco Cannot Log into Disco Integrator - No Access to EUL Tables (Doc ID 281187.1)