diff --git a/week02/easy/client.py b/week02/easy/client.py
index 58924dd..9bb3051 100644
--- a/week02/easy/client.py
+++ b/week02/easy/client.py
@@ -14,8 +14,8 @@ from random import randrange
 log = logging.getLogger(__name__)
 TCP_CLIENTS = {}  # ((IP, port) -> [sent_packets])
 
-# SERVER_IP = '131.159.15.68' # don't use the domain name in this case
-SERVER_IP = '192.168.1.4' # don't use the domain name in this case
+SERVER_IP = '131.159.15.68' # don't use the domain name in this case
+# SERVER_IP = '192.168.1.4' # don't use the domain name in this case
 SERVER_PORT = 20102
 COOKIE_SECRET = 'TASTY_COOKIES123'
 INITIAL_SEQ = 1337
@@ -31,7 +31,7 @@ def handle_packet(packet: Packet):
     if packet.haslayer(TCP) and packet[TCP].sport == SERVER_PORT and packet[TCP].dport == SRC_PORT and packet[TCP].flags == "SA":
         print("received SA packett")
         ip = IP(dst=SERVER_IP)
-        syn = TCP(sport=SRC_PORT, dport=SERVER_PORT, flags='SA', seq=COOKIE, ack=packet[TCP].seq)
+        syn = TCP(sport=SRC_PORT, dport=SERVER_PORT, flags='A', seq=COOKIE, ack=packet[TCP].seq)
         resp = (ip / syn)
         send(resp)
     if packet.haslayer(TCP) and packet[TCP].sport == SERVER_PORT and packet[TCP].dport == SRC_PORT and packet[TCP].flags == "A":
@@ -48,7 +48,7 @@ def start_sniffing():
         prn=handle_packet,
         store=False,
         monitor=True,
-        iface='eth0', # set to your interface. IMPORTANT: SET TO enX0 FOR AUTOGRADER!!!
+        iface='enX0', # set to your interface. IMPORTANT: SET TO enX0 FOR AUTOGRADER!!!
     )
 
 COOKIE = generate_syn_cookie(SERVER_IP, SERVER_PORT, COOKIE_SECRET)
diff --git a/week02/easy/server.py b/week02/easy/server.py
index b9ab53d..d5efb75 100644
--- a/week02/easy/server.py
+++ b/week02/easy/server.py
@@ -73,7 +73,7 @@ def handle_packet(packet: Packet):
                 send(initial_syn)
         
         else:
-            if (0x02 in packet[TCP].flags) or (not seq == expected_cookie) or (not ack == INITIAL_SEQ):
+            if ("S" in packet[TCP].flags) or (not seq == expected_cookie) or (not ack == INITIAL_SEQ):
                 print(f'Invalid cookie {seq}, expected {expected_cookie}')
                 rst = get_rst(src_ip, src_port, seq)
                 send(rst)