diff --git a/internal/clientinfo/ptr_lookup.go b/internal/clientinfo/ptr_lookup.go
index 6a9d99b..fea79fb 100644
--- a/internal/clientinfo/ptr_lookup.go
+++ b/internal/clientinfo/ptr_lookup.go
@@ -72,15 +72,16 @@ func (p *ptrDiscover) lookupHostname(ip string) string {
 	msg := new(dns.Msg)
 	addr, err := dns.ReverseAddr(ip)
 	if err != nil {
-		ctrld.ProxyLogger.Load().Warn().Str("discovery", "ptr").Err(err).Msg("invalid ip address")
+		ctrld.ProxyLogger.Load().Info().Str("discovery", "ptr").Err(err).Msg("invalid ip address")
 		return ""
 	}
 	msg.SetQuestion(addr, dns.TypePTR)
 	ans, err := p.resolver.Resolve(ctx, msg)
 	if err != nil {
-		ctrld.ProxyLogger.Load().Warn().Str("discovery", "ptr").Err(err).Msg("could not perform PTR lookup")
-		p.serverDown.Store(true)
-		go p.checkServer()
+		if p.serverDown.CompareAndSwap(false, true) {
+			ctrld.ProxyLogger.Load().Info().Str("discovery", "ptr").Err(err).Msg("could not perform PTR lookup")
+			go p.checkServer()
+		}
 		return ""
 	}
 	for _, rr := range ans.Answer {