diff --git a/network-management/README.md b/network-management/README.md
index 05e6df5f2a..90658dd886 100644
--- a/network-management/README.md
+++ b/network-management/README.md
@@ -193,7 +193,7 @@ networkMap {
    By default it will expect trust store file received from the doorman to be in the location ``certificates/network-root-truststore.jks``.
    This can be overridden with the additional `--network-root-truststore` flag.
    
-   NOTE: This step applies to all nodes that wish to register with the doorman.
+   NOTE: This step applies to all nodes that wish to register with the doorman. You will have to configure ``compatibiityZoneURL`` and set ``devMode`` to false on each node.
 
 ### 4. Generate node info files for notary nodes
    Once notary nodes are registered, run the notary nodes with the `just-generate-node-info` flag.
diff --git a/network-management/src/main/kotlin/com/r3/corda/networkmanage/doorman/Main.kt b/network-management/src/main/kotlin/com/r3/corda/networkmanage/doorman/Main.kt
index 45668cc6de..698d9e660b 100644
--- a/network-management/src/main/kotlin/com/r3/corda/networkmanage/doorman/Main.kt
+++ b/network-management/src/main/kotlin/com/r3/corda/networkmanage/doorman/Main.kt
@@ -13,9 +13,11 @@ package com.r3.corda.networkmanage.doorman
 import com.jcabi.manifests.Manifests
 import com.r3.corda.networkmanage.common.utils.*
 import com.r3.corda.networkmanage.doorman.signer.LocalSigner
+import net.corda.core.internal.exists
 import net.corda.nodeapi.internal.crypto.X509KeyStore
 import net.corda.nodeapi.internal.crypto.X509Utilities
 import org.slf4j.LoggerFactory
+import java.nio.file.NoSuchFileException
 import java.time.Instant
 import kotlin.system.exitProcess
 
@@ -51,7 +53,10 @@ data class NetworkManagementServerStatus(var serverStartTime: Instant = Instant.
 
 private fun processKeyStore(config: NetworkManagementServerConfig): Pair<CertPathAndKey, LocalSigner>? {
     if (config.keystorePath == null) return null
-
+    if (!config.keystorePath.exists()) {
+        println("Could not find keystore: ${config.keystorePath}. You need to create it first or point to the correct location. Please consult the documentation.")
+        exitProcess(0)
+    }
     // Get password from console if not in config.
     val keyStorePassword = config.keystorePassword ?: readPassword("Key store password: ")
     val privateKeyPassword = config.caPrivateKeyPassword ?: readPassword("Private key password: ")