You do not have to subscribe to anything else. I suspect Xfinity SIgnature Support is what you were told you "need" to subscribe to. If you do subscribe there will be an extra charge on your bill each month for Signature Support. The cost depends on the level of support you subscribe to. If you subscribe and use it you will not talk to Comcast. The service is contracted out to a 3rd party.
You would have to allow them remote access to your computer. That is something I would never allow anyone to do.
Ignore what you were told. If you have wireless issues the connection experts here in the forum would be happy to help you.
If you rent the modem from Comcast and it is a gateway (modem/wireless combo) Comcast should provide support for their product.
Comcast employees must be authorized to post in the forum. Employees posting here have their names in red and are designated as employees. Names not in red are customers.
