diff --git a/eth/p2p/discoveryv5/protocol.nim b/eth/p2p/discoveryv5/protocol.nim
index 80e349f..0cdea94 100644
--- a/eth/p2p/discoveryv5/protocol.nim
+++ b/eth/p2p/discoveryv5/protocol.nim
@@ -411,15 +411,6 @@ proc processClient(transp: DatagramTransport, raddr: TransportAddress):
   var ip: IpAddress
   var buf = newSeq[byte]()
 
-  try:
-    ip = raddr.address()
-  except ValueError:
-    # This should not be possible considering we bind to an IP address.
-    error "Not a valid IpAddress"
-    return
-
-  let a = Address(ip: ValidIpAddress.init(ip), port: raddr.port)
-
   try:
     # TODO: should we use `peekMessage()` to avoid allocation?
     # TODO: This can still raise general `Exception` while it probably should
@@ -428,11 +419,21 @@ proc processClient(transp: DatagramTransport, raddr: TransportAddress):
   except TransportOsError as e:
     # This is likely to be local network connection issues.
     error "Transport getMessage error", exception = e.name, msg = e.msg
+    return
   except Exception as e:
     if e of Defect:
       raise (ref Defect)(e)
     else: doAssert(false)
 
+  try:
+    ip = raddr.address()
+  except ValueError:
+    # This should not be possible considering we bind to an IP address.
+    error "Not a valid IpAddress"
+    return
+
+  let a = Address(ip: ValidIpAddress.init(ip), port: raddr.port)
+
   try:
     proto.receive(a, buf)
   except Exception as e: