Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 60; Flight Crew Total 6600; Flight Crew Type 5000
Communication Breakdown; Situational Awareness; Troubleshooting
ATC Issue All Types; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Overcame Equipment Problem
Aircraft; Environment - Non Weather Related; Human Factors
I was in communication with ZZZ Center; I checked in and the check in was acknowledged.  With COVID I have become accustomed to long periods of silence on the radio.  After a while; I think about 30 minutes; I realized it had been too long since I heard a radio communication.  So I tried to raise ZZZ Center; but received no reply.  I asked any aircraft on my last assigned frequency if they would ask Center what frequency I should be using.  A helpful pilot relayed that frequency; and at the new frequency I was able to contact ZZZ1 Center.  There were no further issues after that.
GA pilot reported having communication issues with Center.