diff --git a/src/cli/sentinel.py b/src/cli/sentinel.py
index 4065a44..1b5dd1d 100644
--- a/src/cli/sentinel.py
+++ b/src/cli/sentinel.py
@@ -7,7 +7,7 @@
 from subprocess import Popen, PIPE, STDOUT
 from datetime import datetime,timedelta
 import time
-
+from urllib.parse import urlparse
 from treelib import  Tree
 
 from geography.continents import OurWorld
@@ -258,8 +258,8 @@ def get_subscriptions(self, ADDRESS):
         self.RPC = CONFIG['network'].get('rpc', HTTParams.RPC)
 
         self.GRPC = CONFIG['network'].get('grpc', HTTParams.GRPC)
-        grpc = self.GRPC.replace("grpc+http://", "").replace("/", "")  # TODO: why const is grpc is saved as ... (?)
-        grpcaddr, grpcport = grpc.split(":")
+        
+        grpcaddr, grpcport = urlparse(self.GRPC).netloc.split(":")
         sdk = SDKInstance(grpcaddr, int(grpcport))
         subscriptions = sdk.subscriptions.QuerySubscriptionsForAccount(ADDRESS, pagination=PageRequest(limit=1000))
 
@@ -337,8 +337,8 @@ def GetQuota(self, id):
         CONFIG = MeileConfig.read_configuration(MeileConfig.CONFFILE)
 
         self.GRPC = CONFIG['network'].get('grpc', HTTParams.GRPC)
-        grpc = self.GRPC.replace("grpc+http://", "").replace("/", "")  # TODO: why const is grpc is saved as ... (?)
-        grpcaddr, grpcport = grpc.split(":")
+        
+        grpcaddr, grpcport = urlparse(self.GRPC).netloc.split(":")
         sdk = SDKInstance(grpcaddr, int(grpcport))
         allocations = sdk.subscriptions.QueryAllocations(subscription_id=int(id))
 
diff --git a/src/cli/wallet.py b/src/cli/wallet.py
index 44e6dc0..f8fb364 100644
--- a/src/cli/wallet.py
+++ b/src/cli/wallet.py
@@ -4,8 +4,11 @@
 import psutil
 import binascii
 import random
+import re
 from time import sleep
 from os import path, remove
+from urllib.parse import urlparse
+from grpc import RpcError
 
 from json.decoder import JSONDecodeError
 
@@ -103,8 +106,8 @@ def subscribe(self, KEYNAME, NODE, DEPOSIT, GB, hourly):
         self.RPC = CONFIG['network'].get('rpc', HTTParams.RPC)
         self.GRPC = CONFIG['network'].get('grpc', HTTParams.GRPC)
 
-        grpc = self.GRPC.replace("grpc+http://", "").replace("/", "")  # TODO: why const is grpc is saved as ... (?)
-        grpcaddr, grpcport = grpc.split(":")
+
+        grpcaddr, grpcport = urlparse(self.GRPC).netloc.split(":")
 
         kr = self.__keyring(PASSWORD)
         private_key = kr.get_password("meile-gui", KEYNAME)  # TODO: very ungly
@@ -183,8 +186,8 @@ def unsubscribe(self, subId):
 
         self.GRPC = CONFIG['network'].get('grpc', HTTParams.GRPC)
 
-        grpc = self.GRPC.replace("grpc+http://", "").replace("/", "")  # TODO: why const is grpc is saved as ... (?)
-        grpcaddr, grpcport = grpc.split(":")
+
+        grpcaddr, grpcport = urlparse(self.GRPC).netloc.split(":")
 
         kr = self.__keyring(PASSWORD)
         private_key = kr.get_password("meile-gui", KEYNAME)  # TODO: very ungly
@@ -204,8 +207,25 @@ def unsubscribe(self, subId):
             # gas=ConfParams.GAS,
             gas_multiplier=ConfParams.GASADJUSTMENT
         )
-        tx = sdk.subscriptions.Cancel(subId, tx_params=tx_params)
         tx_height = 0
+
+        try:
+            tx = sdk.subscriptions.Cancel(subId, tx_params=tx_params)
+        except RpcError as rpc_error:
+            details = rpc_error.details()  # pylint: disable=no-member
+            # TODO: the following prints are only for debug
+            print("details", details)
+            print("code", rpc_error.code())  # pylint: disable=no-member
+            print("debug_error_string", rpc_error.debug_error_string())  # pylint: disable=no-member
+
+            search = f"invalid status inactive_pending for subscription {subId}"
+            if re.search(search, details, re.IGNORECASE):
+                message = "Cannot unsubscribe. Pending session still on blockchain. Try your request again later."
+            else:
+                message = "Error connecting to gRPC server. Try your request again later."
+
+            return {'hash' : None, 'success' : False, 'message' : message}
+
         if tx.get("log", None) is None:
             tx_response = sdk.nodes.wait_transaction(tx["hash"])
             tx_height = tx_response.tx_response.height
@@ -222,8 +242,8 @@ def connect(self, ID, address, type):
 
         self.GRPC = CONFIG['network'].get('grpc', HTTParams.GRPC)
 
-        grpc = self.GRPC.replace("grpc+http://", "").replace("/", "")  # TODO: why const is grpc is saved as ... (?)
-        grpcaddr, grpcport = grpc.split(":")
+
+        grpcaddr, grpcport = urlparse(self.GRPC).netloc.split(":")
 
         kr = self.__keyring(PASSWORD)
         private_key = kr.get_password("meile-gui", KEYNAME)  # TODO: very ungly