If you’re using Pidgin and you might have came across an ‘Unexpected Response’ connection error while connecting to AIM, ICQ. The error usually says, “Received unexpected response from http://api.oscar.aol.com/aim/startOSCARSession”. Well, here’s a small fix that should solve the problem.
1. Click on Accounts
2. Now, Modify your AIM/ ICQ account
3. Navigate to the Advanced tab, uncheck the option ‘Use clientLogin/Use SSL’.
4. Save and exit. That’s it! Hopefully the problem should now be fixed.