I am working with Oracle 11g XE on a Win7 laptop. I have had this up and running without issue for more nearly two years. Went about a month without connecting, and the next time I tried to I got “ORA-12546: TNS:permission denied”.
Since I first ran into this about a week ago I have:
- Tried connecting with multiple clients (SQLPlus, PLSQL Developer, DB Forge Studio) all of which report the same error.
- Tried connecting to other instances with the above clients, all seem to be working fine.
- Tried connecting using the full connection descriptor instead of the XE alias.
- Completely removed all oracle clients and installations from my laptop, and reinstalled them. Including cleaning out residual registry entries, as noted here https://superuser.com/questions/256762/how-do-i-completely-remove-oracle-11g.
As far as I can tell, everything seems to have reinstalled correctly in terms of files being where they belong and services running, but I am still getting the same TNS errors.
What should I be looking for at this point?