Audit changes

peer/on_tick.go

@@ -39,6 +39,7 @@ func (a *App) onTick() {
 		case StateRelayed:
 			// If we have an ep to probe, add it.
 			if ep := p.PreferredEndpoint(); ep.IsValid() {
+				p.ProbeStart = time.Now()
 				a.devAddProbe(p, ep)
 			}
 
@@ -50,6 +51,12 @@ func (a *App) onTick() {
 			} else if ep := p.PreferredEndpoint(); ep.IsValid() && ep != p.WGEndpoint() {
 				// Update the probe address if it's changed.
 				a.devAddProbe(p, ep)
+			} else if time.Since(p.ProbeStart) > 8*wginterface.ProbeKeepalive {
+				// Give up probing if we haven't been able to handshake.
+				p.EndpointV4 = netip.AddrPort{}
+				p.EndpointV6 = netip.AddrPort{}
+				p.EndpointLAN = netip.AddrPort{}
+				a.devAddPeer(p)
 			}
 
 		case StateDirect: