Fix Runtime error 602 : The port is already open

Solution:
1. Try to reboot your computer 

2. Ensure that no other program is using the modem 

3. Else press Ctrl-Alt-Delete and if RNAAPP loads, contact a technician to fix this problem 

4. Try uninstalling the AOL Adapters in the Network Control panel and reboot your computer. Install your Dialup Adapter again. 

5. Remove the erroneous init string or enter ATZ as the init. 

6. If you have Quicken 2000, deactivate the Quicken Download Manager. 

7. You should maybe install your modem again. 

8. Make sure that your computer is Spyware free.

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