diff --git a/src/models/StratumV1Client.ts b/src/models/StratumV1Client.ts
index 582fd89..2860b96 100644
--- a/src/models/StratumV1Client.ts
+++ b/src/models/StratumV1Client.ts
@@ -294,8 +294,8 @@ export class StratumV1Client extends EasyUnsubscribe {
         }
         const now = Date.now();
         const diffSeconds = (now - time.getTime()) / 1000;
-        // five minutes
-        if (diffSeconds > 5 * 60) {
+        // fifteen minutes
+        if (diffSeconds > 15 * 60) {
             console.log('Watchdog ending session');
             this.promiseSocket.socket.emit('end', true);
         }
diff --git a/src/models/StratumV1ClientStatistics.ts b/src/models/StratumV1ClientStatistics.ts
index 11c908c..3a6df6b 100644
--- a/src/models/StratumV1ClientStatistics.ts
+++ b/src/models/StratumV1ClientStatistics.ts
@@ -3,7 +3,7 @@ import { ClientEntity } from '../ORM/client/client.entity';
 
 const CACHE_SIZE = 30;
 const TARGET_SUBMISSION_PER_SECOND = 10;
-const MIN_DIFF = 0.000001;
+const MIN_DIFF = 1e-9;
 export class StratumV1ClientStatistics {
 
     private submissionCacheStart: Date;
diff --git a/src/services/stratum-v1.service.ts b/src/services/stratum-v1.service.ts
index 574dce0..856b72c 100644
--- a/src/services/stratum-v1.service.ts
+++ b/src/services/stratum-v1.service.ts
@@ -76,8 +76,7 @@ export class StratumV1Service implements OnModuleInit {
         await this.clientService.delete(client.extraNonceAndSessionId);
 
         const clientCount = await this.clientService.connectedClientCount();
-        console.log(`Socket error:`, error);
-        console.log(`Client disconnected: ${promiseSocket.socket.remoteAddress},  ${client.extraNonceAndSessionId}, ${clientCount} total clients`);
+        console.log(`Client disconnected, socket error: ${promiseSocket.socket.remoteAddress},  ${client.extraNonceAndSessionId}, ${clientCount} total clients`);
 
       });