ServerManager does not start any MethodServer in Windchill

INFO  [main] wt.server.manager.startup - Registry created: RegistryImpl[UnicastServerRef2 [liveRef: [endpoint:[<host>:5002,wt.boot.WTRMIMasterSocketFactory@1e240](local),objID:[0:0:0, 0]]]]
INFO  [main] wt.server.manager.startup - ServerManager created: ServerManagerImpl[UnicastServerRef2 [liveRef: [endpoint:[<host>:5002,wt.boot.WTRMIMasterSocketFactory@1e240](local),objID:[0:0:0, 5002]]]]
INFO  [main] wt.server.manager.startup - ServerManager bound in registry.
INFO  [main] wt.manager.CacheMasterNegotiator - Cache main stub name: CacheMain
INFO  [main] wt.manager.CacheMasterNegotiator - Using low-locking algorithm
INFO  [main] wt.manager.CacheMasterNegotiator - Main stub retrieved: Proxy[ServerManager,RemoteObjectInvocationHandler[UnicastRef2 [liveRef: [endpoint:[<host>:5002,wt.boot.WTRMIMasterSocketFactory@1e240](remote),objID:[-572b2e27:1967f4cb7af:-7ffe, 3627006938206268236]]]]]

ERROR [main] wt.cache.server.wt.iba.definition.service.IBADefinitionCache  - caught cache server call exception
java.rmi.RemoteException: Unable to register slave cache; nested exception is: 
	java.rmi.RemoteException: Unable to locate cache server; nested exception is: 
	wt.util.WTRemoteException: Unable to get server; nested exception is:
	java.rmi.UnknownHostException: Unknown host: <host>; nested exception is: 
	java.net.UnknownHostException: <host>
	at wt.cache.RemoteCacheServer.registerSlaveInternal(RemoteCacheServer.java:241)
	at wt.cache.RemoteCacheServer.lambda$registerSlave$17(RemoteCacheServer.java:176)
	at wt.cache.RemoteCacheServer.callTimeAndLogRemoteCallableLow(RemoteCacheServer.java:680)
	at wt.cache.RemoteCacheServer.callTimeAndLogRemoteCallable(RemoteCacheServer.java:652)
	at wt.cache.RemoteCacheServer.registerSlave(RemoteCacheServer.java:176)
	at wt.cache.CacheManager.<init>(CacheManager.java:599)
	at wt.iba.definition.service.IBADefinitionCache.<init>(IBADefinitionCache.java:160)
	at wt.iba.definition.service.IBADefinitionCache.getIBADefinitionCache(IBADefinitionCache.java:179)
	at wt.iba.definition.service.IBADefinitionDBService.<clinit>(IBADefinitionDBService.java:91)
	at wt.iba.value.service.IBAValueDBService.<clinit>(IBAValueDBService.java:123)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:264)
	at wt.services.ManagerImplementation.create(ManagerImplementation.java:206)
	at wt.services.StandardManagerFactory.createImplementations(StandardManagerFactory.java:135)
	at wt.services.StandardManagerFactory.<init>(StandardManagerFactory.java:117)
	at wt.services.StandardManagerFactory$Singleton.<clinit>(StandardManagerFactory.java:73)
	at wt.services.StandardManagerFactory.getInstance(StandardManagerFactory.java:102)
	at wt.services.StandardManagerService.createFactory(StandardManagerService.java:373)
	at wt.services.StandardManagerService.initialize(StandardManagerService.java:363)
	at wt.services.StandardManagerService.newStandardManagerService(StandardManagerService.java:99)
	at wt.services.StandardServicesHandler.getFactory(StandardServic