diff --git a/test/functional/feature_config_args.py b/test/functional/feature_config_args.py
index d32ebf1523..860aedf5a1 100755
--- a/test/functional/feature_config_args.py
+++ b/test/functional/feature_config_args.py
@@ -17,6 +17,7 @@ def set_test_params(self):
         self.num_nodes = 1
         self.supports_cli = False
         self.wallet_names = []
+        self.disable_autoconnect = False
 
     def test_config_file_parser(self):
         self.stop_node(0)
@@ -157,14 +158,19 @@ def test_seed_peers(self):
         self.stop_node(0)
 
         # No peers.dat exists and -dnsseed=1
-        # We expect the node will use DNS Seeds, but Regtest mode has 0 DNS seeds
-        # So after 60 seconds, the node should fallback to fixed seeds (this is a slow test)
+        # We expect the node will use DNS Seeds, but Regtest mode does not have
+        # any valid DNS seeds. So after 60 seconds, the node should fallback to
+        # fixed seeds
         assert not os.path.exists(os.path.join(default_data_dir, "peers.dat"))
         start = int(time.time())
-        with self.nodes[0].assert_debug_log(expected_msgs=[
-                "Loaded 0 addresses from peers.dat",
-                "0 addresses found from DNS seeds",
-        ]):
+        with self.nodes[0].assert_debug_log(
+                expected_msgs=[
+                    "Loaded 0 addresses from peers.dat",
+                    "0 addresses found from DNS seeds",
+                    "opencon thread start",  # Ensure ThreadOpenConnections::start time is properly set
+                ],
+                timeout=10,
+        ):
             self.start_node(0, extra_args=['-dnsseed=1', '-fixedseeds=1', f'-mocktime={start}'])
         with self.nodes[0].assert_debug_log(expected_msgs=[
                 "Adding fixed seeds as 60 seconds have passed and addrman is empty",
@@ -202,10 +208,14 @@ def test_seed_peers(self):
         # We expect the node will allow 60 seconds prior to using fixed seeds
         assert not os.path.exists(os.path.join(default_data_dir, "peers.dat"))
         start = int(time.time())
-        with self.nodes[0].assert_debug_log(expected_msgs=[
-                "Loaded 0 addresses from peers.dat",
-                "DNS seeding disabled",
-        ]):
+        with self.nodes[0].assert_debug_log(
+                expected_msgs=[
+                    "Loaded 0 addresses from peers.dat",
+                    "DNS seeding disabled",
+                    "opencon thread start",  # Ensure ThreadOpenConnections::start time is properly set
+                ],
+                timeout=10,
+        ):
             self.start_node(0, extra_args=['-dnsseed=0', '-fixedseeds=1', '-addnode=fakenodeaddr', f'-mocktime={start}'])
         with self.nodes[0].assert_debug_log(expected_msgs=[
                 "Adding fixed seeds as 60 seconds have passed and addrman is empty",
diff --git a/test/functional/feature_loadblock.py b/test/functional/feature_loadblock.py
index 6a12cdc567..3cde60ca56 100755
--- a/test/functional/feature_loadblock.py
+++ b/test/functional/feature_loadblock.py
@@ -16,6 +16,7 @@
 import tempfile
 import urllib
 
+from test_framework.blocktools import COINBASE_MATURITY
 from test_framework.test_framework import (
     BGLTestFramework,
 )
@@ -30,15 +31,14 @@ def set_test_params(self):
 
     def run_test(self):
         self.nodes[1].setnetworkactive(state=False)
-        self.nodes[0].generate(100)
-
+        self.nodes[0].generate(1, COINBASE_MATURITY)[0]
         # Parsing the url of our node to get settings for config file
         data_dir = self.nodes[0].datadir
         node_url = urllib.parse.urlparse(self.nodes[0].url)
         cfg_file = os.path.join(data_dir, "linearize.cfg")
         bootstrap_file = os.path.join(self.options.tmpdir, "bootstrap.dat")
         genesis_block = self.nodes[0].getblockhash(0)
-        blocks_dir = os.path.join(data_dir, "regtest", "blocks")
+        blocks_dir = os.path.join(data_dir, self.chain, "blocks")
         hash_list = tempfile.NamedTemporaryFile(dir=data_dir,
                                                 mode='w',
                                                 delete=False,
@@ -46,17 +46,17 @@ def run_test(self):
 
         self.log.info("Create linearization config file")
         with open(cfg_file, "a", encoding="utf-8") as cfg:
-            cfg.write("datadir={}\n".format(data_dir))
-            cfg.write("rpcuser={}\n".format(node_url.username))
-            cfg.write("rpcpassword={}\n".format(node_url.password))
-            cfg.write("port={}\n".format(node_url.port))
-            cfg.write("host={}\n".format(node_url.hostname))
-            cfg.write("output_file={}\n".format(bootstrap_file))
-            cfg.write("max_height=100\n")
-            cfg.write("netmagic=fabfb5da\n")
-            cfg.write("input={}\n".format(blocks_dir))
-            cfg.write("genesis={}\n".format(genesis_block))
-            cfg.write("hashlist={}\n".format(hash_list.name))
+            cfg.write(f"datadir={data_dir}\n")
+            cfg.write(f"rpcuser={node_url.username}\n")
+            cfg.write(f"rpcpassword={node_url.password}\n")
+            cfg.write(f"port={node_url.port}\n")
+            cfg.write(f"host={node_url.hostname}\n")
+            cfg.write(f"output_file={bootstrap_file}\n")
+            cfg.write(f"max_height=100\n")
+            cfg.write(f"netmagic=fabfb5da\n")
+            cfg.write(f"input={blocks_dir}\n")
+            cfg.write(f"genesis={genesis_block}\n")
+            cfg.write(f"hashlist={hash_list.name}\n")
 
         base_dir = self.config["environment"]["SRCDIR"]
         linearize_dir = os.path.join(base_dir, "contrib", "linearize")
@@ -73,7 +73,7 @@ def run_test(self):
                        check=True)
 
         self.log.info("Restart second, unsynced node with bootstrap file")
-        self.restart_node(1, extra_args=["-loadblock=" + bootstrap_file])
+        self.restart_node(1, extra_args=[f"-loadblock={bootstrap_file}"])
         assert_equal(self.nodes[1].getblockcount(), 100)  # start_node is blocking on all block files being imported
 
         assert_equal(self.nodes[1].getblockchaininfo()['blocks'], 100)
diff --git a/test/functional/feature_segwit.py b/test/functional/feature_segwit.py
index aebbd90044..70c51509c6 100755
--- a/test/functional/feature_segwit.py
+++ b/test/functional/feature_segwit.py
@@ -17,7 +17,7 @@
 from test_framework.blocktools import witness_script, send_to_witness
 from test_framework.messages import COIN, COutPoint, CTransaction, CTxIn, CTxOut, FromHex, sha256, ToHex
 from test_framework.script import CScript, OP_HASH160, OP_CHECKSIG, OP_0, hash160, OP_EQUAL, OP_DUP, OP_EQUALVERIFY, OP_1, OP_2, OP_CHECKMULTISIG, OP_TRUE, OP_DROP
-from test_framework.test_framework import BGLTestFramework
+from test_framework.test_framework import BGLTestFramework, SkipTest
 from test_framework.util import (
     assert_equal,
     assert_is_hex_string,
@@ -26,6 +26,7 @@
     try_rpc,
 )
 
+
 NODE_0 = 0
 NODE_2 = 2
 P2WPKH = 0
@@ -95,7 +96,12 @@ def skip_mine(self, node, txid, sign, redeem_script=""):
     def fail_accept(self, node, error_msg, txid, sign, redeem_script=""):
         assert_raises_rpc_error(-26, error_msg, send_to_witness, use_p2wsh=1, node=node, utxo=getutxo(txid), pubkey=self.pubkey[0], encode_p2sh=False, amount=Decimal("49.998"), sign=sign, insert_redeem_script=redeem_script)
 
+    def skip_test_bgl_fork(self):
+        raise SkipTest("Forked after segwit.")
+
     def run_test(self):
+        self.skip_test_bgl_fork()
+
         self.nodes[0].generate(161)  # block 161
 
         self.log.info("Verify sigops are counted in GBT with pre-BIP141 rules before the fork")
diff --git a/test/functional/interface_zmq.py b/test/functional/interface_zmq.py
index 142b0097b7..6a3f8ec2a2 100755
--- a/test/functional/interface_zmq.py
+++ b/test/functional/interface_zmq.py
@@ -90,6 +90,7 @@ def caused_notification(self, notification):
 
 class ZMQTest (BGLTestFramework):
     def set_test_params(self):
+        self.setup()
         self.num_nodes = 2
         if self.is_wallet_compiled():
             self.requires_wallet = True
diff --git a/test/functional/p2p_segwit.py b/test/functional/p2p_segwit.py
index 77e8d6eced..d8e921d38c 100755
--- a/test/functional/p2p_segwit.py
+++ b/test/functional/p2p_segwit.py
@@ -276,11 +276,7 @@ def run_test(self):
         self.test_non_witness_transaction()
         self.test_v0_outputs_arent_spendable()
         self.test_block_relay()
-        self.test_getblocktemplate_before_lockin()
-        self.test_unnecessary_witness_before_segwit_activation()
-        self.test_witness_tx_relay_before_segwit_activation()
-        self.test_standardness_v0()
-
+        
         self.log.info("Advancing to segwit activation")
         self.advance_to_segwit_active()
 
diff --git a/test/functional/rpc_addresses_deprecation.py b/test/functional/rpc_addresses_deprecation.py
index 1e1d81dab9..f360050862 100644
--- a/test/functional/rpc_addresses_deprecation.py
+++ b/test/functional/rpc_addresses_deprecation.py
@@ -50,7 +50,7 @@ def test_addresses_deprecation(self):
 
         self.log.info("Test RPCResult scriptPubKey returns the addresses field with -deprecatedrpc=addresses")
         script_pub_key = self.nodes[1].getblock(blockhash=hash, verbose=2)['tx'][-1]['vout'][0]['scriptPubKey']
-        assert_equal(script_pub_key['addresses'], ['mvKDK6D54HU8wQumJBLHY95eq5iHFqXSBz', 'mv3rHCQSwKp2BLSuMHD8uCS32LW5xiNAA5', 'mirrsyhAQYzo5CwVhcaYJKwUJu1WJRCRJe'])
+        assert_equal(script_pub_key['addresses'], ['EwHmVjFtPPnfy3B6QsgkCV85NEseUTVLvx', 'Ew2QTqTGGS8ZCxiETyZbZYUTZVfTG44d9U', 'EjqR4cjyjfKL6qCppJvzxfytr4AsU4WonJ'])
         assert_equal(script_pub_key['reqSigs'], 2)
 
 
diff --git a/test/functional/test_framework/p2p.py b/test/functional/test_framework/p2p.py
index 53fa5fbf5a..0ae1ba89e0 100755
--- a/test/functional/test_framework/p2p.py
+++ b/test/functional/test_framework/p2p.py
@@ -437,6 +437,7 @@ def on_version(self, message):
             self.send_message(msg_sendaddrv2())
         self.send_message(msg_verack())
         self.nServices = message.nServices
+        self.send_message(msg_getaddr())
 
     # Connection helper methods
 
@@ -575,6 +576,8 @@ def __init__(self):
 
         NetworkThread.listeners = {}
         NetworkThread.protos = {}
+        if sys.platform == 'win32':
+            asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())
         NetworkThread.network_event_loop = asyncio.new_event_loop()
 
     def run(self):
diff --git a/test/functional/test_framework/test_framework.py b/test/functional/test_framework/test_framework.py
index 083b816270..dc296567ca 100755
--- a/test/functional/test_framework/test_framework.py
+++ b/test/functional/test_framework/test_framework.py
@@ -113,6 +113,9 @@ def __init__(self):
         # By default the wallet is not required. Set to true by skip_if_no_wallet().
         # When False, we ignore wallet_names regardless of what it is.
         self.requires_wallet = False
+        # Disable ThreadOpenConnections by default, so that adding entries to
+        # addrman will not result in automatic connections to them.
+        self.disable_autoconnect = True
         self.set_test_params()
         assert self.wallet_names is None or len(self.wallet_names) <= self.num_nodes
         if self.options.timeout_factor == 0 :
@@ -554,18 +557,19 @@ def wait_for_node_exit(self, i, timeout):
         self.nodes[i].process.wait(timeout)
 
     def connect_nodes(self, a, b):
-        def connect_nodes_helper(from_connection, node_num):
-            ip_port = "127.0.0.1:" + str(p2p_port(node_num))
-            from_connection.addnode(ip_port, "onetry")
-            # poll until version handshake complete to avoid race conditions
-            # with transaction relaying
-            # See comments in net_processing:
-            # * Must have a version message before anything else
-            # * Must have a verack message before anything else
-            wait_until_helper(lambda: all(peer['version'] != 0 for peer in from_connection.getpeerinfo()))
-            wait_until_helper(lambda: all(peer['bytesrecv_per_msg'].pop('verack', 0) == 24 for peer in from_connection.getpeerinfo()))
-
-        connect_nodes_helper(self.nodes[a], b)
+        from_connection = self.nodes[a]
+        to_connection = self.nodes[b]
+        ip_port = "127.0.0.1:" + str(p2p_port(b))
+        from_connection.addnode(ip_port, "onetry")
+        # poll until version handshake complete to avoid race conditions
+        # with transaction relaying
+        # See comments in net_processing:
+        # * Must have a version message before anything else
+        # * Must have a verack message before anything else
+        wait_until_helper(lambda: all(peer['version'] != 0 for peer in from_connection.getpeerinfo()))
+        wait_until_helper(lambda: all(peer['version'] != 0 for peer in to_connection.getpeerinfo()))
+        wait_until_helper(lambda: all(peer['bytesrecv_per_msg'].pop('verack', 0) == 24 for peer in from_connection.getpeerinfo()))
+        wait_until_helper(lambda: all(peer['bytesrecv_per_msg'].pop('verack', 0) == 24 for peer in to_connection.getpeerinfo()))
 
     def disconnect_nodes(self, a, b):
         def disconnect_nodes_helper(from_connection, node_num):
@@ -613,6 +617,29 @@ def join_network(self):
         self.connect_nodes(1, 2)
         self.sync_all()
 
+    def no_op(self):
+        pass
+
+    def generate(self, generator, *args, sync_fun=None, **kwargs):
+        blocks = generator.generate(*args, invalid_call=False, **kwargs)
+        sync_fun() if sync_fun else self.sync_all()
+        return blocks
+
+    def generateblock(self, generator, *args, sync_fun=None, **kwargs):
+        blocks = generator.generateblock(*args, invalid_call=False, **kwargs)
+        sync_fun() if sync_fun else self.sync_all()
+        return blocks
+
+    def generatetoaddress(self, generator, *args, sync_fun=None, **kwargs):
+        blocks = generator.generatetoaddress(*args, invalid_call=False, **kwargs)
+        sync_fun() if sync_fun else self.sync_all()
+        return blocks
+
+    def generatetodescriptor(self, generator, *args, sync_fun=None, **kwargs):
+        blocks = generator.generatetodescriptor(*args, invalid_call=False, **kwargs)
+        sync_fun() if sync_fun else self.sync_all()
+        return blocks
+
     def sync_blocks(self, nodes=None, wait=1, timeout=60):
         """
         Wait until everybody has the same tip.
@@ -708,7 +735,7 @@ def _initialize_chain(self):
         if not os.path.isdir(cache_node_dir):
             self.log.debug("Creating cache directory {}".format(cache_node_dir))
 
-            initialize_datadir(self.options.cachedir, CACHE_NODE_ID, self.chain)
+            initialize_datadir(self.options.cachedir, CACHE_NODE_ID, self.chain, self.disable_autoconnect)
             self.nodes.append(
                 TestNode(
                     CACHE_NODE_ID,
@@ -765,7 +792,7 @@ def cache_path(*paths):
             self.log.debug("Copy cache directory {} to node {}".format(cache_node_dir, i))
             to_dir = get_datadir_path(self.options.tmpdir, i)
             shutil.copytree(cache_node_dir, to_dir)
-            initialize_datadir(self.options.tmpdir, i, self.chain)  # Overwrite port/rpcport in BGL.conf
+            initialize_datadir(self.options.tmpdir, i, self.chain, self.disable_autoconnect)  # Overwrite port/rpcport in bitcoin.conf
 
     def _initialize_chain_clean(self):
         """Initialize empty blockchain for use by the test.
@@ -773,7 +800,7 @@ def _initialize_chain_clean(self):
         Create an empty blockchain and num_nodes wallets.
         Useful if a test case wants complete control over initialization."""
         for i in range(self.num_nodes):
-            initialize_datadir(self.options.tmpdir, i, self.chain)
+            initialize_datadir(self.options.tmpdir, i, self.chain, self.disable_autoconnect)
 
     def skip_if_no_py3_zmq(self):
         """Attempt to import the zmq package and skip the test if the import fails."""
diff --git a/test/functional/test_framework/util.py b/test/functional/test_framework/util.py
index 3a26a2971e..4dcc9381d0 100644
--- a/test/functional/test_framework/util.py
+++ b/test/functional/test_framework/util.py
@@ -339,17 +339,17 @@ def rpc_url(datadir, i, chain, rpchost):
 ################
 
 
-def initialize_datadir(dirname, n, chain):
+def initialize_datadir(dirname, n, chain, disable_autoconnect=True):
     datadir = get_datadir_path(dirname, n)
     if not os.path.isdir(datadir):
         os.makedirs(datadir)
-    write_config(os.path.join(datadir, "BGL.conf"), n=n, chain=chain)
+    write_config(os.path.join(datadir, "BGL.conf"), n=n, chain=chain, disable_autoconnect=disable_autoconnect)
     os.makedirs(os.path.join(datadir, 'stderr'), exist_ok=True)
     os.makedirs(os.path.join(datadir, 'stdout'), exist_ok=True)
     return datadir
 
 
-def write_config(config_path, *, n, chain, extra_config=""):
+def write_config(config_path, *, n, chain, extra_config="", disable_autoconnect=True):
     # Translate chain subdirectory name to config name
     if chain == 'testnet3':
         chain_name_conf_arg = 'testnet'
@@ -371,12 +371,19 @@ def write_config(config_path, *, n, chain, extra_config=""):
         f.write("dnsseed=0\n")
         f.write("fixedseeds=0\n")
         f.write("listenonion=0\n")
+        # Increase peertimeout to avoid disconnects while using mocktime.
+        # peertimeout is measured in wall clock time, so setting it to the
+        # duration of the longest test is sufficient. It can be overridden in
+        # tests.
+        f.write("peertimeout=999999\n")
         f.write("printtoconsole=0\n")
         f.write("upnp=0\n")
         f.write("natpmp=0\n")
         f.write("shrinkdebugfile=0\n")
         # To improve SQLite wallet performance so that the tests don't timeout, use -unsafesqlitesync
         f.write("unsafesqlitesync=1\n")
+        if disable_autoconnect:
+            f.write("connect=0\n")
         f.write(extra_config)
 
 
diff --git a/test/functional/test_runner.py b/test/functional/test_runner.py
index a904fcd787..2c8479f676 100755
--- a/test/functional/test_runner.py
+++ b/test/functional/test_runner.py
@@ -142,7 +142,6 @@
     'wallet_txn_doublespend.py --mineblock',
     'tool_wallet.py --legacy-wallet',
     'tool_wallet.py --descriptors',
-    'wallet_txn_clone.py',
     'wallet_txn_clone.py --segwit',
     'rpc_getchaintips.py',
     'rpc_misc.py',
@@ -247,7 +246,6 @@
     'p2p_leak.py',
     'wallet_encryption.py --legacy-wallet',
     'wallet_encryption.py --descriptors',
-    'feature_dersig.py',
     'feature_cltv.py',
     'rpc_uptime.py',
     'wallet_resendwallettransactions.py --legacy-wallet',
diff --git a/test/functional/wallet_basic.py b/test/functional/wallet_basic.py
index e2b039608c..045195e80d 100755
--- a/test/functional/wallet_basic.py
+++ b/test/functional/wallet_basic.py
@@ -593,9 +593,9 @@ def run_test(self):
 
         # Test getaddressinfo on external address. Note that these addresses are taken from disablewallet.py
         assert_raises_rpc_error(-5, "Invalid prefix for Base58-encoded address", self.nodes[0].getaddressinfo, "3J98t1WpEZ73CNmQviecrnyiWrnqRhWNLy")
-        address_info = self.nodes[0].getaddressinfo("mneYUmWYsuk7kySiURxCi3AGxrAqZxLgPZ")
-        assert_equal(address_info['address'], "mneYUmWYsuk7kySiURxCi3AGxrAqZxLgPZ")
-        assert_equal(address_info["scriptPubKey"], "76a9144e3854046c7bd1594ac904e4793b6a45b36dea0988ac")
+        address_info = self.nodes[0].getaddressinfo("rbgl1qmevj8zfx0wdvp05cqwkmr6mxkfx60yezhdmczp")
+        assert_equal(address_info['address'], "rbgl1qmevj8zfx0wdvp05cqwkmr6mxkfx60yezhdmczp")
+        assert_equal(address_info["scriptPubKey"], "0014de592389267b9ac0be9803adb1eb66b24da79322")
         assert not address_info["ismine"]
         assert not address_info["iswatchonly"]
         assert not address_info["isscript"]
diff --git a/test/functional/wallet_txn_clone.py b/test/functional/wallet_txn_clone.py
index 34b562f702..a98eb46b17 100755
--- a/test/functional/wallet_txn_clone.py
+++ b/test/functional/wallet_txn_clone.py
@@ -36,8 +36,8 @@ def run_test(self):
         else:
             output_type = "legacy"
 
-        # All nodes should start with 1,250 BTC:
-        starting_balance = 1250
+        # All nodes should start with 5000 BGL:
+        starting_balance = 5000
         for i in range(3):
             assert_equal(self.nodes[i].getbalance(), starting_balance)
 
diff --git a/test/functional/wallet_txn_doublespend.py b/test/functional/wallet_txn_doublespend.py
index e43e95ce19..6f4cf53586 100755
--- a/test/functional/wallet_txn_doublespend.py
+++ b/test/functional/wallet_txn_doublespend.py
@@ -29,8 +29,8 @@ def setup_network(self):
         self.disconnect_nodes(1, 2)
 
     def run_test(self):
-        # All nodes should start with 1,250 BTC:
-        starting_balance = 1250
+        # All nodes should start with 5000 BGL:
+        starting_balance = 5000
 
         # All nodes should be out of IBD.
         # If the nodes are not all out of IBD, that can interfere with
@@ -132,8 +132,8 @@ def run_test(self):
         expected = starting_balance + 100 - 1240 + fund_foo_tx["fee"] + fund_bar_tx["fee"] + doublespend_fee
         assert_equal(self.nodes[0].getbalance(), expected)
 
-        # Node1's balance should be its initial balance (1250 for 25 block rewards) plus the doublespend:
-        assert_equal(self.nodes[1].getbalance(), 1250 + 1240)
+        # Node1's balance should be its initial balance (5000 for 25 block rewards) plus the doublespend:
+        assert_equal(self.nodes[1].getbalance(), 5000 + 1240)
 
 
 if __name__ == '__main__':
diff --git a/test/functional/wallet_upgradewallet.py b/test/functional/wallet_upgradewallet.py
index 7f35c2fe2a..bccbf0543d 100755
--- a/test/functional/wallet_upgradewallet.py
+++ b/test/functional/wallet_upgradewallet.py
@@ -94,10 +94,11 @@ def dumb_sync_blocks(self):
     def test_upgradewallet(self, wallet, previous_version, requested_version=None, expected_version=None):
         unchanged = expected_version == previous_version
         new_version = previous_version if unchanged else expected_version if expected_version else requested_version
-        assert_equal(wallet.getwalletinfo()["walletversion"], previous_version)
+        old_wallet_info = wallet.getwalletinfo()
+        assert_equal(old_wallet_info["walletversion"], previous_version)
         assert_equal(wallet.upgradewallet(requested_version),
             {
-                "wallet_name": "",
+                "wallet_name": old_wallet_info["walletname"],
                 "previous_version": previous_version,
                 "current_version": new_version,
                 "result": "Already at latest version. Wallet version unchanged." if unchanged else "Wallet upgraded successfully from version {} to version {}.".format(previous_version, new_version),