Disable connection caching for http clients in both node and client

ip/rest_resolver.go

@@ -23,6 +23,11 @@ func NewResolverWithTimeout(timeout time.Duration) Resolver {
 	return &clientRest{
 		httpClient: http.Client{
 			Timeout: timeout,
+			Transport: &http.Transport{
+				//dont cache tcp connections - first requests after state change (direct -> tunneled and vice versa) will always fail
+				//as stale tcp states are not closed after switch. Probably some kind of CloseIdleConnections will help in the future
+				DisableKeepAlives: true,
+			},
 		},
 	}
 }

server/mysterium_api.go

@@ -28,7 +28,10 @@ type mysteriumAPI struct {
 func NewClient() Client {
 	return &mysteriumAPI{
 		&http.Client{
-			Transport: &http.Transport{},
+			Transport: &http.Transport{
+				//Don't reuse tcp connections for request - see ip/rest_resolver.go for details
+				DisableKeepAlives: true,
+			},
 		},
 	}
 }