When was the last time you access your internet?(mac and windows)
Does the problem happen once?(mac and windows)

 

Have you noticed anything strange in your computer recently? (windows)
Is your computer running slow? (windows)5. Are you getting pop ups? (windows)

 
 
-I can surely help you configure the internet settings and connect the computer to
the internet
-we have an exact service that perfectly match with your issue 
and that is WIRELESS NETWORKING service
 
With Wireless networking service, we will be able to correct and reconfigure the internet settings of your computer
 thus making your device to be connected back to your internet
This service make sure that your ssid and password are secure  and only you can access it. 
So basically the service is for configuration of  wireless network on the connected router
 
-its at a bargain price of $79.95 
So lets go ahead and fix your issue?
Are you gonna use a debit or credit card?
 
-the issue is beyond the scope of comcast as they are only providing internet service 
but with the configuration on the settings of the computer they can't do it as they are not
specialized or they have limited knowledge on it