X1c does not recognize ams

bamboo lab x1c has completed exactly 1345 hours. When switching to a new print, X1C does not see AMSs. I searched the forum but could not find a clear answer. There is no method I have not tried. There are 3 AMSs, I checked all the cables are connected and there is no blockage. I am going crazy. I sent the log output to the service. But I will not be able to do the work of many customers until I get an answer from there.