diff --git a/pytest_tests/testsuites/object/test_object_api.py b/pytest_tests/testsuites/object/test_object_api.py
index 5134406..91dffd5 100644
--- a/pytest_tests/testsuites/object/test_object_api.py
+++ b/pytest_tests/testsuites/object/test_object_api.py
@@ -101,7 +101,7 @@ def test_object_api(prepare_wallet_and_deposit, request, object_size):
 @pytest.mark.sanity
 @pytest.mark.grpc_api
 @pytest.mark.parametrize('object_size', [SIMPLE_OBJ_SIZE, COMPLEX_OBJ_SIZE], ids=['simple object', 'complex object'])
-def test_object_api(prepare_wallet_and_deposit, request, object_size):
+def test_object_api_lifetime(prepare_wallet_and_deposit, request, object_size):
     """
     Test object deleted after expiration epoch.
     """
@@ -124,7 +124,7 @@ def test_object_api(prepare_wallet_and_deposit, request, object_size):
 
     # Wait for GC, because object with expiration is counted as alive until GC removes it
     with allure.step('Wait until GC completes on storage nodes'):
-        sleep(robot_time_to_int(SHARD_0_GC_SLEEP))
+        sleep(1.5 * robot_time_to_int(SHARD_0_GC_SLEEP))
 
     with allure.step('Check object deleted because it expires-on epoch'):
         with pytest.raises(Exception, match='.*object not found.*'):
diff --git a/robot/resources/lib/python_keywords/aws_cli_client.py b/robot/resources/lib/python_keywords/aws_cli_client.py
index 19a23ef..4e0e483 100644
--- a/robot/resources/lib/python_keywords/aws_cli_client.py
+++ b/robot/resources/lib/python_keywords/aws_cli_client.py
@@ -23,7 +23,7 @@ class AwsCliClient:
 
     def create_bucket(self, Bucket: str):
         cmd = f'aws --no-verify-ssl s3api create-bucket --bucket {Bucket} --endpoint-url {S3_GATE}'
-        _cmd_run(cmd)
+        _cmd_run(cmd, timeout=90)
 
     def list_buckets(self) -> dict:
         cmd = f'aws --no-verify-ssl s3api list-buckets --endpoint {S3_GATE}'
diff --git a/robot/variables/common.py b/robot/variables/common.py
index 28c808d..5666357 100644
--- a/robot/variables/common.py
+++ b/robot/variables/common.py
@@ -81,12 +81,14 @@ NEOFS_NETMAP = [i['rpc'] for i in NEOFS_NETMAP_DICT.values()]
 NEOGO_EXECUTABLE = os.getenv('NEOGO_EXECUTABLE', 'neo-go')
 NEOFS_CLI_EXEC = os.getenv('NEOFS_CLI_EXEC', 'neofs-cli')
 
-# Config of user's wallet that we use to run the tests
+# Config of wallet with empty password. We use it for:
+# - for wallet of user on behalf of whom we are running tests
+# - for wallets of storage nodes
 WALLET_CONFIG = f"{CLI_CONFIGS_PATH}/empty_passwd.yml"
 
 MAINNET_WALLET_PATH = os.getenv("MAINNET_WALLET_PATH", f"{DEVENV_PATH}/services/chain/node-wallet.json")
 MAINNET_WALLET_CONFIG = os.getenv("MAINNET_WALLET_CONFIG", f"{CLI_CONFIGS_PATH}/one_wallet_password.yml")
-MAINNET_SINGLE_ADDR = "NfgHwwTi3wHAS8aFAN243C5vGbkYDpqLHP"
+MAINNET_SINGLE_ADDR = os.getenv("MAINNET_SINGLE_ADDR", "NfgHwwTi3wHAS8aFAN243C5vGbkYDpqLHP")
 MAINNET_WALLET_PASS = os.getenv("MAINNET_WALLET_PASS", "one")
 
 IR_WALLET_PATH = os.getenv("IR_WALLET_PATH", f"{DEVENV_PATH}/services/ir/wallet01.json")
@@ -101,12 +103,8 @@ STORAGE_NODE_SSH_USER = os.getenv("STORAGE_NODE_SSH_USER")
 STORAGE_NODE_SSH_PASSWORD = os.getenv("STORAGE_NODE_SSH_PASSWORD")
 STORAGE_NODE_SSH_PRIVATE_KEY_PATH = os.getenv("STORAGE_NODE_SSH_PRIVATE_KEY_PATH")
 
-# Parameters that control resources located on the storage node:
-# STORAGE_NODE_BIN_PATH - path to directory that contains CLI tools
-# STORAGE_NODE_CONFIG_PATH - configuration file for neofs-cli on the storage node
+# Path to directory with CLI binaries on storage node (currently we need only neofs-cli)
 STORAGE_NODE_BIN_PATH = os.getenv("STORAGE_NODE_BIN_PATH", f"{DEVENV_PATH}/vendor")
-STORAGE_NODE_CONFIG_PATH = os.getenv("STORAGE_NODE_CONFIG_PATH", f"{DEVENV_PATH}/services/storage/cli-cfg.yml")
-STORAGE_NODE_WALLET_PATH = os.getenv("STORAGE_NODE_WALLET_PATH")  # allows to override path to wallet that was given in STORAGE_NODE_CONFIG_PATH, this is temp parameter, should be fixed in environment setup
 
 # Path and config for neofs-adm utility. Optional if tests are running against devenv
 NEOFS_ADM_EXEC = os.getenv("NEOFS_ADM_EXEC")