diff --git a/main.go b/main.go
index d5e7545..7dd6bc6 100644
--- a/main.go
+++ b/main.go
@@ -34,6 +34,7 @@ const (
 var (
 	flagINDIServerManagerAddr string
 	flagPHD2ServerAddr        string
+	flagINDIServerAddr        string
 	flagINDIProfile           string
 	flagToken                 string
 	flagConfFile              string
@@ -58,6 +59,12 @@ func init() {
 		"raspberrypi.local:8624",
 		"INDI-server Manager address (host:port)",
 	)
+	flag.StringVar(
+		&flagINDIServerAddr,
+		"indi-server",
+		"",
+		"INDI-server address (host:port) to connect without Web Manager",
+	)
 	flag.StringVar(
 		&flagMode,
 		"mode",
@@ -130,17 +137,65 @@ func main() {
 		indiHubAddr = "localhost:7667" // TODO: change this to optional DEV server
 	}
 
-	if flagINDIServerManagerAddr == "" {
-		log.Fatal("'indi-server-manager' parameter is missing, the 'host:port' format is expected")
-	}
+	indiServerAddr := ""
+	indiDrivers := []*lib.INDIDriver{}
+	indiProfile := &lib.INDIProfile{}
+	if flagINDIServerAddr != "" {
+		// connect to INDI-server directly without Web Manager
+		if _, _, err := net.SplitHostPort(flagINDIServerAddr); err != nil {
+			log.Fatal("Bad syntax for 'indi-server' parameter, the 'host:port' format is expected")
+		}
+		log.Println("Will try to connect directly to INDI-server (Web Manager is not used)")
+		indiProfile.Name = flagINDIServerAddr // to let backend know that no Web Manager was used
+		indiServerAddr = flagINDIServerAddr
+	} else {
+		// connect to INDI-server using info from Web Manager
+		indiHost, _, err := net.SplitHostPort(flagINDIServerManagerAddr)
+		if err != nil {
+			log.Fatal("Bad syntax for 'indi-server-manager' parameter, the 'host:port' format is expected")
+		}
+		if flagINDIProfile == "" {
+			log.Fatal("'indi-profile' parameter is required")
+		}
 
-	indiHost, _, err := net.SplitHostPort(flagINDIServerManagerAddr)
-	if err != nil {
-		log.Fatal("Bad syntax for 'indi-server-manager' parameter, the 'host:port' format is expected")
-	}
+		// connect to INDI-server Manager
+		log.Printf("Connection to local INDI-Server Manager on %s...\n", flagINDIServerManagerAddr)
+		managerClient := manager.NewClient(flagINDIServerManagerAddr)
+		running, currINDIProfile, err := managerClient.GetStatus()
+		if err != nil {
+			log.Fatal(err)
+		}
+		log.Println("...OK")
 
-	if flagINDIProfile == "" {
-		log.Fatal("'indi-profile' parameter is required")
+		// start required profile if it is not active and running
+		if !running || currINDIProfile != flagINDIProfile {
+			log.Printf("Setting active INDI-profile to '%s'\n", flagINDIProfile)
+			if err := managerClient.StopServer(); err != nil {
+				log.Fatal(err)
+			}
+			if err := managerClient.StartProfile(flagINDIProfile); err != nil {
+				log.Fatal(err)
+			}
+		} else {
+			log.Printf("INDI-server is running with active INDI-profile '%s'\n", flagINDIProfile)
+		}
+
+		// get profile connect data
+		indiProfile, err = managerClient.GetProfile(flagINDIProfile)
+		if err != nil {
+			log.Fatalf("could not get INDI-profile from INDI-server manager: %s", err)
+		}
+		indiServerAddr = fmt.Sprintf("%s:%d", indiHost, indiProfile.Port)
+
+		// get profile drivers data
+		indiDrivers, err = managerClient.GetDrivers()
+		if err != nil {
+			log.Fatalf("could not get INDI-drivers info from INDI-server manager: %s", err)
+		}
+		log.Println("INDIDrivers:")
+		for _, d := range indiDrivers {
+			log.Printf("%+v", *d)
+		}
 	}
 
 	// read token from flag or from config file if exists
@@ -151,45 +206,6 @@ func main() {
 		}
 	}
 
-	// connect to INDI-server Manager
-	log.Printf("Connection to local INDI-Server Manager on %s...\n", flagINDIServerManagerAddr)
-	managerClient := manager.NewClient(flagINDIServerManagerAddr)
-	running, currINDIProfile, err := managerClient.GetStatus()
-	if err != nil {
-		log.Fatal(err)
-	}
-	log.Println("...OK")
-
-	// start required profile if it is not active and running
-	if !running || currINDIProfile != flagINDIProfile {
-		log.Printf("Setting active INDI-profile to '%s'\n", flagINDIProfile)
-		if err := managerClient.StopServer(); err != nil {
-			log.Fatal(err)
-		}
-		if err := managerClient.StartProfile(flagINDIProfile); err != nil {
-			log.Fatal(err)
-		}
-	} else {
-		log.Printf("INDI-server is running with active INDI-profile '%s'\n", flagINDIProfile)
-	}
-
-	// get profile connect data
-	indiProfile, err := managerClient.GetProfile(flagINDIProfile)
-	if err != nil {
-		log.Fatalf("could not get INDI-profile from INDI-server manager: %s", err)
-	}
-	indiServerAddr = fmt.Sprintf("%s:%d", indiHost, indiProfile.Port)
-
-	// get profile drivers data
-	indiDrivers, err := managerClient.GetDrivers()
-	if err != nil {
-		log.Fatalf("could not get INDI-drivers info from INDI-server manager: %s", err)
-	}
-	log.Println("INDIDrivers:")
-	for _, d := range indiDrivers {
-		log.Printf("%+v", *d)
-	}
-
 	// test connect to local INDI-server
 	log.Printf("Test connection to local INDI-Server on %s...\n", indiServerAddr)
 	indiConn, err := net.Dial("tcp", indiServerAddr)
@@ -228,11 +244,7 @@ func main() {
 		Os:           runtime.GOOS,
 		Arch:         runtime.GOARCH,
 	}
-	ccdDrivers := []string{}
 	for i, driver := range indiDrivers {
-		if driver.Family == "CCDs" {
-			ccdDrivers = append(ccdDrivers, driver.Binary)
-		}
 		indiHubHost.Drivers[i] = &indihub.INDIDriver{
 			Binary:  driver.Binary,
 			Family:  driver.Family,
@@ -295,7 +307,7 @@ func main() {
 	}
 
 	// prepare all modes
-	soloMode := solo.NewMode(indiHubClient, regInfo, indiServerAddr, ccdDrivers)
+	soloMode := solo.NewMode(indiHubClient, regInfo, indiServerAddr)
 	shareMode := share.NewMode(indiHubClient, regInfo, indiServerAddr, flagPHD2ServerAddr, lib.ModeShare)
 	roboticMode := share.NewMode(indiHubClient, regInfo, indiServerAddr, flagPHD2ServerAddr, lib.ModeRobotic)
 
diff --git a/solo/mode.go b/solo/mode.go
index 238864c..11d15f1 100644
--- a/solo/mode.go
+++ b/solo/mode.go
@@ -11,18 +11,16 @@ type Mode struct {
 	indiServerAddr string
 	indiHubClient  indihub.INDIHubClient
 	regInfo        *indihub.RegisterInfo
-	ccdDrivers     []string
 
 	stopCh chan struct{}
 	status string
 }
 
-func NewMode(indiHubClient indihub.INDIHubClient, regInfo *indihub.RegisterInfo, indiServerAddr string, ccdDrivers []string) *Mode {
+func NewMode(indiHubClient indihub.INDIHubClient, regInfo *indihub.RegisterInfo, indiServerAddr string) *Mode {
 	return &Mode{
 		indiServerAddr: indiServerAddr,
 		indiHubClient:  indiHubClient,
 		regInfo:        regInfo,
-		ccdDrivers:     ccdDrivers,
 		stopCh:         make(chan struct{}, 1),
 	}
 }
@@ -40,7 +38,6 @@ func (s *Mode) Start() {
 	soloAgent := New(
 		s.indiServerAddr,
 		soloClient,
-		s.ccdDrivers,
 	)
 
 	go func() {
diff --git a/solo/solo.go b/solo/solo.go
index a7da9da..7d79a1c 100644
--- a/solo/solo.go
+++ b/solo/solo.go
@@ -18,8 +18,8 @@ var (
 	getProperties = []byte("<getProperties version='1.7'/>")
 	enableBLOB    = "<enableBLOB device='%s'>Also</enableBLOB>"
 
-	setBLOBVector = []byte("<setBLOBVector")
-	defTextVector = []byte("<defTextVector")
+	setBLOBVector   = []byte("<setBLOBVector")
+	defNumberVector = []byte("<defNumberVector")
 )
 
 type INDIHubSoloTunnel interface {
@@ -31,20 +31,13 @@ type Agent struct {
 	indiServerAddr string
 	indiConn       net.Conn
 	tunnel         INDIHubSoloTunnel
-	ccdDrivers     map[string]bool
 	shouldExit     bool
 }
 
-func New(indiServerAddr string, tunnel INDIHubSoloTunnel, ccdDrivers []string) *Agent {
-	ccdDriversMap := make(map[string]bool)
-	for _, d := range ccdDrivers {
-		ccdDriversMap[d] = true
-	}
-
+func New(indiServerAddr string, tunnel INDIHubSoloTunnel) *Agent {
 	return &Agent{
 		indiServerAddr: indiServerAddr,
 		tunnel:         tunnel,
-		ccdDrivers:     ccdDriversMap,
 	}
 }
 
@@ -67,6 +60,7 @@ func (p *Agent) Start(sessionID uint64, sessionToken string) error {
 	// listen INDI-server for data
 	buf := make([]byte, lib.INDIServerMaxSendMsgSize, lib.INDIServerMaxSendMsgSize)
 	xmlFlattener := lib.NewXmlFlattener()
+	subscribedCCDs := map[string]bool{}
 	for {
 		if p.shouldExit {
 			break
@@ -91,8 +85,8 @@ func (p *Agent) Start(sessionID uint64, sessionToken string) error {
 				continue
 			}
 
-			// subscribe to BLOBs from CCDs
-			if !bytes.HasPrefix(xmlCmd, defTextVector) {
+			// subscribe to BLOBs from CCDs by catching defNumberVector property with name="CCD_EXPOSURE"
+			if !bytes.HasPrefix(xmlCmd, defNumberVector) {
 				continue
 			}
 
@@ -101,28 +95,20 @@ func (p *Agent) Start(sessionID uint64, sessionToken string) error {
 				log.Println("could not parse XML chunk in solo-mode:", err)
 				continue
 			}
-			defTextVectorMap, _ := mapVal.ValueForKey("defTextVector")
-			if defTextVectorMap == nil {
+			defNumberVectorMap, _ := mapVal.ValueForKey("defNumberVector")
+			if defNumberVectorMap == nil {
 				continue
 			}
-			defTextVectorVal := defTextVectorMap.(map[string]interface{})
+			defNumberVectorVal := defNumberVectorMap.(map[string]interface{})
 
-			if nameStr, ok := defTextVectorVal["attr_name"].(string); ok && nameStr == "DRIVER_INFO" {
-				if defTextVal, ok := defTextVectorVal["defText"].([]interface{}); ok {
-					for _, driverInfo := range defTextVal {
-						driverInfoVal := driverInfo.(map[string]interface{})
-						if driverNameStr, ok := driverInfoVal["attr_name"].(string); ok && driverNameStr == "DRIVER_EXEC" {
-							if execText, ok := driverInfoVal["#text"].(string); ok && p.ccdDrivers[execText] {
-								if deviceStr, ok := defTextVectorVal["attr_device"].(string); ok {
-									_, err := p.indiConn.Write([]byte(fmt.Sprintf(enableBLOB, deviceStr)))
-									if err != nil {
-										log.Printf("could not write to INDI-server in solo-mode: %s\n", err)
-									}
-									break
-								}
-							}
-						}
+			if nameStr, ok := defNumberVectorVal["attr_name"].(string); ok && nameStr == "CCD_EXPOSURE" {
+				if deviceStr, ok := defNumberVectorVal["attr_device"].(string); ok && !subscribedCCDs[deviceStr] {
+					_, err := p.indiConn.Write([]byte(fmt.Sprintf(enableBLOB, deviceStr)))
+					if err != nil {
+						log.Printf("could not write to INDI-server in solo-mode: %s\n", err)
 					}
+					subscribedCCDs[deviceStr] = true
+					break
 				}
 			}
 		}