I can connect to my wifi Hotspot but no internet served

[FastBlackRam]

This used to work, but lately doesn't. When I connect a device to my Ram hotspot it connects to the Ram but not to the internet. Ever since they replaced a "body module" to fix an exterior lighting problem, this stopped working. Interestingly though, it serves internet to radio channels that require internet, like searched channels, some sports channels, etc. I have my Ram connected thru my AT&T wireless service so I know that is not the problem. Any ideas or do I need to take it back to the fools?