I would check the coxal cable connectors, especially the one in the bedroom. Those that connect to a ceiling junction box. Sometimes the cable center lead will back out of the connector and result in loss of signal.
That water damage in the pictures is going to be significant. The cost of fixing that plus the cost of transportation to PA is likely going to exceed the value of the FW even if you got it for free
Find something local. Used FWs are all over the place