Yes you need to reboot for any changes to your TCP/IP config to take effect.

If you're using RASPPPoE, you can dump Access Manager. They both do exactly the same thing, which is connect and authenticate you with the Sympatico network. Just that RASPPPoE uses the streamlined dial-up networking interface.

I wouldn't delete anything in the Network control panel unless you're absolutely sure you don't need it. I have a lot of "extra stuff" on my home PC but if I remove any of it my connection stops working.

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I help others in the name of my Lord, Jesus Christ.