diff --git a/dftool b/dftool
index ac356c748..e91fdd19b 100755
--- a/dftool
+++ b/dftool
@@ -115,7 +115,7 @@ ADDRESS_FILE -- eg for barge: export ADDRESS_FILE={networkutil.chainIdToAddressF
         os.mkdir(CSV_DIR)
 
     # brownie setup
-    _connectToChain(CHAINID)
+    networkutil.connect(CHAINID)
     chain = brownie.network.chain
 
     if "-" in ST:
@@ -279,7 +279,7 @@ Transactions are signed with envvar 'DFTOOL_KEY`.
     assert DFREWARDS_ADDR is not None
 
     # main work
-    _connectToChain(CHAINID)
+    networkutil.connect(CHAINID)
     from_account = _getPrivateAccount()
     token_symbol = B.Simpletoken.at(TOKEN_ADDR).symbol()
     rewards = csvs.loadRewardsCsv(CSV_DIR, token_symbol)
@@ -340,7 +340,7 @@ Usage: dftool newdfrewards CHAINID
     print(f"Arguments: CHAINID={CHAINID}")
 
     # main work
-    _connectToChain(CHAINID)
+    networkutil.connect(CHAINID)
     from_account = _getPrivateAccount()
     df_rewards = B.DFRewards.deploy({"from": from_account})
     print(f"New dispense contract deployed at address: {df_rewards.address}")
@@ -407,7 +407,7 @@ Usage: dftool mine BLOCKS [TIMEDELTA]
     print(f"Arguments: BLOCKS={BLOCKS}, TIMEDELTA={TIMEDELTA}")
 
     # main work
-    _connectToChain(DEV_CHAINID)  # hardcoded bc it's the only one we can force
+    networkutil.connect(DEV_CHAINID)
     chain = brownie.network.chain
     if TIMEDELTA is None:
         chain.mine(blocks=BLOCKS, timedelta=TIMEDELTA)
@@ -432,7 +432,7 @@ Usage: dftool newacct
     assert sys.argv[1] == "newacct"
 
     # main work
-    _connectToChain(DEV_CHAINID)  # hardcoded bc it's the only one we can force
+    networkutil.connect(DEV_CHAINID)
     account = brownie.network.accounts.add()
     print("Generated new account:")
     print(f" private_key = {account.private_key}")
@@ -457,7 +457,7 @@ Usage: dftool newtoken CHAINID
     print(f"Arguments:\n CHAINID={CHAINID}")
 
     # main work
-    _connectToChain(CHAINID)
+    networkutil.connect(CHAINID)
     from_account = _getPrivateAccount()
     token = B.Simpletoken.deploy("TST", "Test Token", 18, 1e21, {"from": from_account})
     print(f"Token '{token.symbol()}' deployed at address: {token.address}")
@@ -487,7 +487,7 @@ If envvar ADDRESS_FILE is not None, it gives balance for OCEAN token too.
 
     # do work
     print("Account info:")
-    _connectToChain(CHAINID)
+    networkutil.connect(CHAINID)
     if len(str(ACCOUNT_ADDR)) == 1:
         addr_i = int(ACCOUNT_ADDR)
         ACCOUNT_ADDR = brownie.accounts[addr_i]
@@ -525,7 +525,7 @@ Usage: dftool chaininfo CHAINID
     CHAINID = int(sys.argv[2])
 
     # do work
-    _connectToChain(CHAINID)
+    networkutil.connect(CHAINID)
     # blocks = len(brownie.network.chain)
     print("\nChain info:")
     print(f"  # blocks: {len(brownie.network.chain)}")
@@ -553,12 +553,6 @@ def _getPrivateAccount():
     return account
 
 
-@enforce_types
-def _connectToChain(chainID: int):
-    network = networkutil.chainIdToNetwork(chainID)
-    brownie.network.connect(network)
-
-
 # ========================================================================
 # main
 @enforce_types
diff --git a/util/networkutil.py b/util/networkutil.py
index 2a0218788..78565010d 100644
--- a/util/networkutil.py
+++ b/util/networkutil.py
@@ -6,24 +6,20 @@
 from util.constants import CONTRACTS
 
 _BARGE_ADDRESS_FILE = "~/.ocean/ocean-contracts/artifacts/address.json"
-_BARGE_SUBGRAPH_URI = (
-    "http://127.0.0.1:9000/subgraphs/name/oceanprotocol/ocean-subgraph"
-)
 
-
-# Chainid values & names are from brownie, where possible.
-# https://eth-brownie.readthedocs.io/en/stable/network-management.html
-# Otherwise, values & names are from networkutil.org.
+# Development chainid is from brownie, rest are from chainlist.org
+# Chain values to fit Ocean subgraph urls as given in
+# https://v3.docs.oceanprotocol.com/concepts/networks/
 _CHAINID_TO_NETWORK = {
     8996: "development",  # ganache
-    1: "mainnet",  # eth mainnet
+    1: "mainnet",
     3: "ropsten",
     4: "rinkeby",
-    56: "Binance Smart Chain",
-    137: "Polygon Mainnet",
-    246: "Energy Web Chain",
-    1284: "Moonbeam",
-    1285: "Moonriver",
+    56: "bsc",
+    137: "polygon",
+    246: "energyweb",
+    1284: "moonbeam",
+    1285: "moonriver",
 }
 _NETWORK_TO_CHAINID = {
     network: chainID for chainID, network in _CHAINID_TO_NETWORK.items()
@@ -33,21 +29,20 @@
 
 
 @enforce_types
-def chainIdToAddressFile(chainID: int) -> str:
+def chainIdToAddressFile(chainID: int) -> str:  # pylint: disable=unused-argument
     """Returns the address file for a given chainID"""
-    if chainID == DEV_CHAINID:
-        return os.path.expanduser(_BARGE_ADDRESS_FILE)
-
-    raise NotImplementedError()
+    return os.path.expanduser(_BARGE_ADDRESS_FILE)
 
 
 @enforce_types
 def chainIdToSubgraphUri(chainID: int) -> str:
     """Returns the subgraph URI for a given chainID"""
+    sg = "/subgraphs/name/oceanprotocol/ocean-subgraph"
     if chainID == DEV_CHAINID:
-        return _BARGE_SUBGRAPH_URI
+        return "http://127.0.0.1:9000" + sg
 
-    raise NotImplementedError()
+    network_str = chainIdToNetwork(chainID)
+    return f"https://v4.subgraph.{network_str}.oceanprotocol.com" + sg
 
 
 @enforce_types
@@ -66,7 +61,7 @@ def networkToChainId(network: str) -> int:
 def connect(chainID: int):
     network = brownie.network
     if network.is_connected():
-        network.disconnect()
+        disconnect()  # call networkutil.disconnect(), *NOT* brownie directly
     network.connect(chainIdToNetwork(chainID))
 
 
@@ -80,4 +75,9 @@ def disconnect():
     if chainID in CONTRACTS:
         del CONTRACTS[chainID]
 
-    network.disconnect()
+    try:
+        network.disconnect()
+    except:  # pylint: disable=bare-except
+        # overcome brownie issue
+        # https://github.com/eth-brownie/brownie/issues/1144
+        pass
diff --git a/util/oceanutil.py b/util/oceanutil.py
index 7d4464d12..b1c71f174 100644
--- a/util/oceanutil.py
+++ b/util/oceanutil.py
@@ -151,7 +151,8 @@ def createBPoolFromDatatoken(
 ):
     TOK_have = fromBase18(base_TOKEN.balanceOf(from_account))
     TOK_need = init_TOKEN_liquidity
-    assert TOK_have >= TOK_need, f"have {TOK_have} TOK, need {TOK_need}"
+    TOK_name = base_TOKEN.symbol()
+    assert TOK_have >= TOK_need, f"have {TOK_have} {TOK_name}, need {TOK_need}"
 
     pool_template = PoolTemplate()
     router = factoryRouter()  # router.routerOwner() = '0xe2DD..' = accounts[0]
diff --git a/util/test/test_networkutil.py b/util/test/test_networkutil.py
index a4ef0cc94..d77edade6 100644
--- a/util/test/test_networkutil.py
+++ b/util/test/test_networkutil.py
@@ -1,30 +1,27 @@
 from enforce_typing import enforce_types
-import pytest
 
 from util import networkutil
 
 
 @enforce_types
 def test_chainIdToSubgraphUri():
-    assert (
-        networkutil.chainIdToSubgraphUri(networkutil.DEV_CHAINID)[:21]
-        == "http://127.0.0.1:9000"
-    )
-
-    for chainID in [1, 137]:
-        with pytest.raises(NotImplementedError):
-            networkutil.chainIdToSubgraphUri(chainID)
+    for chainID, network_str in networkutil._CHAINID_TO_NETWORK.items():
+        uri = networkutil.chainIdToSubgraphUri(chainID)
+        if chainID == networkutil.DEV_CHAINID:
+            assert uri[:21] == "http://127.0.0.1:9000"
+        else:
+            assert network_str in uri
 
 
 @enforce_types
 def test_chainIdToNetwork():
     assert networkutil.chainIdToNetwork(8996) == "development"
     assert networkutil.chainIdToNetwork(1) == "mainnet"
-    assert networkutil.chainIdToNetwork(137) == "Polygon Mainnet"
+    assert networkutil.chainIdToNetwork(137) == "polygon"
 
 
 @enforce_types
 def test_networkToChainId():
     assert networkutil.networkToChainId("development") == 8996
     assert networkutil.networkToChainId("mainnet") == 1
-    assert networkutil.networkToChainId("Polygon Mainnet") == 137
+    assert networkutil.networkToChainId("polygon") == 137
diff --git a/util/test/test_rinkeby.py b/util/test/test_rinkeby.py
index d0b8db682..13aff9a07 100644
--- a/util/test/test_rinkeby.py
+++ b/util/test/test_rinkeby.py
@@ -1,38 +1,67 @@
-# import brownie
+import os
+import types
+
 from enforce_typing import enforce_types
 
-# from pprint import pprint
-import pytest
+from util import networkutil
+
+PREV = None
+
+CHAINID = networkutil.networkToChainId("rinkeby")
+
+
+@enforce_types
+def test_chainIdToNetwork():
+    network_str = networkutil.chainIdToNetwork(CHAINID)
+    assert network_str == "rinkeby"
+
 
-# from util import networkutil, oceanutil, oceantestutil
-# from util.graphutil import submitQuery
+@enforce_types
+def test_chainIdToSubgraphUri():
+    uri = networkutil.chainIdToSubgraphUri(CHAINID)
+    assert "subgraph.rinkeby.oceanprotocol.com" in uri
 
 
 @enforce_types
-@pytest.mark.skip(reason="need to implement")
-def test_query_approvedTokens():
-    print("hello")
+def test_main(tmp_path):
+    # brownie has a bug when trying to shut down non-ganache networks
+    # details in https://github.com/eth-brownie/brownie/issues/1144
+    # in file venv/lib/python3.8/site-packages/brownie/network/state.py
+    #   function: _remove_contract()
+    #   code: del _contract_map[contract.address]
+
+    # This isn't a problem from cli, since it cleans up mem
+    # But it is a problem for unit tests. Our workaround is to do a system call.
 
-    # OCEAN = oceanutil.OCEANtoken()
+    ACCOUNT_ADDR = "0xc945a5a960fef1a9c3fef8593fc2446d1d7c6146"
+    TOKEN_ADDR = "0xddea378a6ddc8afec82c36e9b0078826bf9e68b6"
+    fn = os.path.join(tmp_path, "out.txt")
+    cmd = f"./dftool acctinfo {CHAINID} {ACCOUNT_ADDR} {TOKEN_ADDR}>{fn} 2>{fn}"
+    os.system(cmd)
 
-    # oceantestutil.randomDeployPool(accounts[0], OCEAN)
+    s = None
+    with open(fn, "r") as f:
+        s = f.read()
+    assert " ZRX" in s
 
-    # query = "{ opcs{approvedTokens} }"
-    # result = submitQuery(query, chainID)
 
-    # pprint(result)
+@enforce_types
+def setup_module():
+    global PREV
+
+    PREV = types.SimpleNamespace()
 
+    PREV.WEB3_INFURA_PROJECT_ID = os.environ.get("WEB3_INFURA_PROJECT_ID")
 
-# @enforce_types
-# def setup_function():
-#     chainID = networkutil.networkToChainId("rinkeby")
-#     networkutil.connect(chainID)
+    # got this value from https://rpc.info/. We could also use our own
+    os.environ["WEB3_INFURA_PROJECT_ID"] = "9aa3d95b3bc440fa88ea12eaa4456161"
 
-#     address_file = networkutil.chainIdToAddressFile(chainID)
-#     oceanutil.recordDeployedContracts(address_file)
-#     oceantestutil.fillAccountsWithOCEAN()
 
+@enforce_types
+def teardown_module():
+    global PREV
 
-# @enforce_types
-# def teardown_function():
-#     networkutil.disconnect()
+    if PREV.WEB3_INFURA_PROJECT_ID is None:
+        del os.environ["WEB3_INFURA_PROJECT_ID"]
+    else:
+        os.environ["WEB3_INFURA_PROJECT_ID"] = PREV.WEB3_INFURA_PROJECT_ID