diff --git a/confluent_server/confluent/discovery/protocols/slp.py b/confluent_server/confluent/discovery/protocols/slp.py
index 4fd1391c..a9beda8e 100644
--- a/confluent_server/confluent/discovery/protocols/slp.py
+++ b/confluent_server/confluent/discovery/protocols/slp.py
@@ -112,7 +112,10 @@ def _parse_slp_packet(packet, peer, rsps, xidmap, defer=None, sock=None):
             identifier = addr
         else:
             probepeer = (peer[0], struct.unpack('H', os.urandom(2))[0] | 1025) + peer[2:]
-            sock.sendto(b'\x00', probepeer)
+            try:
+                sock.sendto(b'\x00', probepeer)
+            except Exception:
+                return
             defer.append((packet, peer))
             return
     if (identifier, parsed['xid']) in rsps:
@@ -487,7 +490,10 @@ def snoop(handler, protocol=None):
                     mac = neighutil.get_hwaddr(peer[0])
                     if not mac:
                         probepeer = (peer[0], struct.unpack('H', os.urandom(2))[0] | 1025) + peer[2:]
-                        s.sendto(b'\x00', probepeer)
+                        try:
+                            s.sendto(b'\x00', probepeer)
+                        except Exception:
+                            continue
                         deferpeers.append(peer)
                         continue
                     process_peer(newmacs, known_peers, peerbymacaddress, peer)
diff --git a/confluent_server/confluent/discovery/protocols/ssdp.py b/confluent_server/confluent/discovery/protocols/ssdp.py
index 71dee347..f747f0b6 100644
--- a/confluent_server/confluent/discovery/protocols/ssdp.py
+++ b/confluent_server/confluent/discovery/protocols/ssdp.py
@@ -167,7 +167,10 @@ def snoop(handler, byehandler=None, protocol=None, uuidlookup=None):
                             continue
                         mac = neighutil.get_hwaddr(peer[0])
                         if not mac:
-                            s.sendto(b'\x00', peer)
+                            try:
+                                s.sendto(b'\x00', peer)
+                            except Exception:
+                                continue
                             deferrednotifies.append((peer, rsp))
                             continue
                         _process_snoop(peer, rsp, mac, known_peers, newmacs, peerbymacaddress, byehandler, machandlers)
@@ -311,8 +314,11 @@ def _find_service(service, target):
         for s in r:
             (rsp, peer) = s.recvfrom(9000)
             if not neighutil.get_hwaddr(peer[0]):
+                try:
+                    s.sendto(b'\x00', peer)
+                except Exception:
+                    continue
                 deferparse.append((rsp, peer))
-                s.sendto(b'\x00', peer)
                 continue
             _parse_ssdp(peer, rsp, peerdata)
         timeout = deadline - util.monotonic_time()