diff --git a/changelog.d/7684.bugfix b/changelog.d/7684.bugfix
new file mode 100644
index 0000000000..4a9af884a1
--- /dev/null
+++ b/changelog.d/7684.bugfix
@@ -0,0 +1 @@
+ Fix crash when invalid homeserver url is entered.
diff --git a/vector/src/main/java/im/vector/app/features/onboarding/OnboardingViewModel.kt b/vector/src/main/java/im/vector/app/features/onboarding/OnboardingViewModel.kt
index 022fea5ed1..7fe73f8087 100644
--- a/vector/src/main/java/im/vector/app/features/onboarding/OnboardingViewModel.kt
+++ b/vector/src/main/java/im/vector/app/features/onboarding/OnboardingViewModel.kt
@@ -118,7 +118,7 @@ class OnboardingViewModel @AssistedInject constructor(
         }
     }
 
-    private fun checkQrCodeLoginCapability(homeServerUrl: String) {
+    private suspend fun checkQrCodeLoginCapability(config: HomeServerConnectionConfig) {
         if (!vectorFeatures.isQrCodeLoginEnabled()) {
             setState {
                 copy(
@@ -133,16 +133,12 @@ class OnboardingViewModel @AssistedInject constructor(
                 )
             }
         } else {
-            viewModelScope.launch {
-                // check if selected server supports MSC3882 first
-                homeServerConnectionConfigFactory.create(homeServerUrl)?.let {
-                    val canLoginWithQrCode = authenticationService.isQrLoginSupported(it)
-                    setState {
-                        copy(
-                                canLoginWithQrCode = canLoginWithQrCode
-                        )
-                    }
-                }
+            // check if selected server supports MSC3882 first
+            val canLoginWithQrCode = authenticationService.isQrLoginSupported(config)
+            setState {
+                copy(
+                        canLoginWithQrCode = canLoginWithQrCode
+                )
             }
         }
     }
@@ -710,7 +706,6 @@ class OnboardingViewModel @AssistedInject constructor(
             _viewEvents.post(OnboardingViewEvents.Failure(Throwable("Unable to create a HomeServerConnectionConfig")))
         } else {
             startAuthenticationFlow(action, homeServerConnectionConfig, serverTypeOverride, postAction)
-            checkQrCodeLoginCapability(homeServerConnectionConfig.homeServerUri.toString())
         }
     }
 
@@ -769,6 +764,8 @@ class OnboardingViewModel @AssistedInject constructor(
             _viewEvents.post(OnboardingViewEvents.OutdatedHomeserver)
         }
 
+        checkQrCodeLoginCapability(config)
+
         when (trigger) {
             is OnboardingAction.HomeServerChange.SelectHomeServer -> {
                 onHomeServerSelected(config, serverTypeOverride, authResult)
diff --git a/vector/src/test/java/im/vector/app/features/onboarding/OnboardingViewModelTest.kt b/vector/src/test/java/im/vector/app/features/onboarding/OnboardingViewModelTest.kt
index 718f1ec7a9..92083eb50b 100644
--- a/vector/src/test/java/im/vector/app/features/onboarding/OnboardingViewModelTest.kt
+++ b/vector/src/test/java/im/vector/app/features/onboarding/OnboardingViewModelTest.kt
@@ -160,6 +160,28 @@ class OnboardingViewModelTest {
                 .finish()
     }
 
+    @Test
+    fun `given combined login enabled, when handling sign in splash action, then emits OpenCombinedLogin with default homeserver qrCode supported`() = runTest {
+        val test = viewModel.test()
+        fakeVectorFeatures.givenCombinedLoginEnabled()
+        givenCanSuccessfullyUpdateHomeserver(A_DEFAULT_HOMESERVER_URL, DEFAULT_SELECTED_HOMESERVER_STATE, canLoginWithQrCode = true)
+
+        viewModel.handle(OnboardingAction.SplashAction.OnIAlreadyHaveAnAccount(OnboardingFlow.SignIn))
+
+        test
+                .assertStatesChanges(
+                        initialState,
+                        { copy(onboardingFlow = OnboardingFlow.SignIn) },
+                        { copy(isLoading = true) },
+                        { copy(canLoginWithQrCode = true) },
+                        { copy(selectedHomeserver = DEFAULT_SELECTED_HOMESERVER_STATE) },
+                        { copy(signMode = SignMode.SignIn) },
+                        { copy(isLoading = false) }
+                )
+                .assertEvents(OnboardingViewEvents.OpenCombinedLogin)
+                .finish()
+    }
+
     @Test
     fun `given can successfully login in with token, when logging in with token, then emits AccountSignedIn`() = runTest {
         val test = viewModel.test()
@@ -1152,11 +1174,13 @@ class OnboardingViewModelTest {
             resultingState: SelectedHomeserverState,
             config: HomeServerConnectionConfig = A_HOMESERVER_CONFIG,
             fingerprint: Fingerprint? = null,
+            canLoginWithQrCode: Boolean = false,
     ) {
         fakeHomeServerConnectionConfigFactory.givenConfigFor(homeserverUrl, fingerprint, config)
         fakeStartAuthenticationFlowUseCase.givenResult(config, StartAuthenticationResult(isHomeserverOutdated = false, resultingState))
         givenRegistrationResultFor(RegisterAction.StartRegistration, RegistrationActionHandler.Result.StartRegistration)
         fakeHomeServerHistoryService.expectUrlToBeAdded(config.homeServerUri.toString())
+        fakeAuthenticationService.givenIsQrLoginSupported(config, canLoginWithQrCode)
     }
 
     private fun givenUpdatingHomeserverErrors(homeserverUrl: String, resultingState: SelectedHomeserverState, error: Throwable) {
@@ -1164,6 +1188,7 @@ class OnboardingViewModelTest {
         fakeStartAuthenticationFlowUseCase.givenResult(A_HOMESERVER_CONFIG, StartAuthenticationResult(isHomeserverOutdated = false, resultingState))
         givenRegistrationResultFor(RegisterAction.StartRegistration, RegistrationActionHandler.Result.Error(error))
         fakeHomeServerHistoryService.expectUrlToBeAdded(A_HOMESERVER_CONFIG.homeServerUri.toString())
+        fakeAuthenticationService.givenIsQrLoginSupported(A_HOMESERVER_CONFIG, false)
     }
 
     private fun givenUserNameIsAvailable(userName: String) {
diff --git a/vector/src/test/java/im/vector/app/test/fakes/FakeAuthenticationService.kt b/vector/src/test/java/im/vector/app/test/fakes/FakeAuthenticationService.kt
index af53913169..5d0e317c57 100644
--- a/vector/src/test/java/im/vector/app/test/fakes/FakeAuthenticationService.kt
+++ b/vector/src/test/java/im/vector/app/test/fakes/FakeAuthenticationService.kt
@@ -58,6 +58,10 @@ class FakeAuthenticationService : AuthenticationService by mockk() {
         coEvery { getWellKnownData(matrixId, config) } returns result
     }
 
+    fun givenIsQrLoginSupported(config: HomeServerConnectionConfig, result: Boolean) {
+        coEvery { isQrLoginSupported(config) } returns result
+    }
+
     fun givenWellKnownThrows(matrixId: String, config: HomeServerConnectionConfig?, cause: Throwable) {
         coEvery { getWellKnownData(matrixId, config) } throws cause
     }