diff --git a/backend/src/federation/authenticateCommunities.ts b/backend/src/federation/authenticateCommunities.ts
index 30831fc4a..88abc62f8 100644
--- a/backend/src/federation/authenticateCommunities.ts
+++ b/backend/src/federation/authenticateCommunities.ts
@@ -47,6 +47,13 @@ export async function startCommunityAuthentication(
           homeCom.publicKey.toString('hex'),
           args.url,
         )
+        const pubKeyBuf = Buffer.from(args.publicKey, 'hex')
+        logger.debug(`Authentication: url=`, args.url)
+        logger.debug(`Authentication: homeCom.PublicKey=`, homeCom.publicKey)
+        logger.debug(`Authentication: pubKeyBuf=`, pubKeyBuf)
+        logger.debug(`Authentication: pubKeyBufString=`, pubKeyBuf.toString('hex'))
+        logger.debug(`Authentication: publicKey=`, args.publicKey)
+
         if (await client.openConnection(args)) {
           logger.info(`Authentication: successful initiated at community:`, foreignFedCom.endPoint)
         } else {
diff --git a/backend/src/federation/client/1_0/AuthenticationClient.ts b/backend/src/federation/client/1_0/AuthenticationClient.ts
index bff61104e..96e7f8a20 100644
--- a/backend/src/federation/client/1_0/AuthenticationClient.ts
+++ b/backend/src/federation/client/1_0/AuthenticationClient.ts
@@ -26,11 +26,7 @@ export class AuthenticationClient {
   }
 
   async openConnection(args: OpenConnectionArgs): Promise<boolean | undefined> {
-    logger.debug(
-      `Authentication: openConnection at ${this.endpoint} for args:`,
-      args.url,
-      args.publicKey,
-    )
+    logger.debug(`Authentication: openConnection at ${this.endpoint} for args:`, args)
     try {
       // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
       const { data } = await this.client.rawRequest(openConnection, { args })
diff --git a/federation/src/graphql/api/1_0/resolver/AuthenticationResolver.ts b/federation/src/graphql/api/1_0/resolver/AuthenticationResolver.ts
index 77c093ae6..34ccf8222 100644
--- a/federation/src/graphql/api/1_0/resolver/AuthenticationResolver.ts
+++ b/federation/src/graphql/api/1_0/resolver/AuthenticationResolver.ts
@@ -19,13 +19,11 @@ export class AuthenticationResolver {
     args: OpenConnectionArgs,
   ): Promise<boolean> {
     const pubKeyBuf = Buffer.from(args.publicKey, 'hex')
-    logger.debug(
-      `Authentication: openConnection() via apiVersion=1_0 ...`,
-      args,
-      args.url,
-      args.publicKey,
-      pubKeyBuf.toString('hex'),
-    )
+    logger.debug(`Authentication: openConnection() via apiVersion=1_0:`, args)
+    logger.debug(`Authentication: url=`, args.url)
+    logger.debug(`Authentication: publicKey=`, args.publicKey)
+    logger.debug(`Authentication: pubKeyBuf=`, pubKeyBuf)
+    logger.debug(`Authentication: pubKeyBufString=`, pubKeyBuf.toString('hex'))
 
     // first find with args.publicKey the community, which starts openConnection request
     const requestedCom = await DbCommunity.findOneBy({