diff --git a/app/src/main/java/com/tangem/tap/domain/walletconnect2/data/DefaultLegacyWalletConnectRepository.kt b/app/src/main/java/com/tangem/tap/domain/walletconnect2/data/DefaultLegacyWalletConnectRepository.kt
index 27eb47df0b..0f673b9ba6 100644
--- a/app/src/main/java/com/tangem/tap/domain/walletconnect2/data/DefaultLegacyWalletConnectRepository.kt
+++ b/app/src/main/java/com/tangem/tap/domain/walletconnect2/data/DefaultLegacyWalletConnectRepository.kt
@@ -133,11 +133,29 @@ internal class DefaultLegacyWalletConnectRepository(
                     return
                 }
 
+                val optionalMissingNetwork = findMissingNetworks(
+                    namespaces = sessionProposal.optionalNamespaces,
+                    userNamespaces = this@DefaultLegacyWalletConnectRepository.userNamespaces ?: emptyMap(),
+                )
+
                 val optionalWithoutMissingNetworks = removeMissingNetworks(
                     namespaces = sessionProposal.optionalNamespaces,
                     userNamespaces = this@DefaultLegacyWalletConnectRepository.userNamespaces ?: emptyMap(),
                 )
 
+                // for cases when optionalNamespaces is not empty but we doesn't support none of them
+                if (optionalMissingNetwork.isNotEmpty() && optionalWithoutMissingNetworks.isEmpty()) {
+                    Timber.i("Not added optional blockchains: $optionalMissingNetwork")
+                    scope.launch {
+                        _events.emit(
+                            WalletConnectEvents.SessionApprovalError(
+                                WalletConnectError.ApprovalErrorMissingNetworks(optionalMissingNetwork.toList()),
+                            ),
+                        )
+                    }
+                    return
+                }
+
                 val requiredChainIds = sessionProposal.requiredNamespaces.values.flatMap { it.chains ?: emptyList() }
                 val optionalChainIds = optionalWithoutMissingNetworks.toList()
                 val networks = (requiredChainIds + optionalChainIds)
diff --git a/app/src/main/java/com/tangem/tap/domain/walletconnect2/domain/WalletConnectInteractor.kt b/app/src/main/java/com/tangem/tap/domain/walletconnect2/domain/WalletConnectInteractor.kt
index be7ff95089..2ba6a15344 100644
--- a/app/src/main/java/com/tangem/tap/domain/walletconnect2/domain/WalletConnectInteractor.kt
+++ b/app/src/main/java/com/tangem/tap/domain/walletconnect2/domain/WalletConnectInteractor.kt
@@ -149,21 +149,18 @@ class WalletConnectInteractor(
                 Timber.i("WalletConnect: event: $wcEvent")
                 when (wcEvent) {
                     is WalletConnectEvents.SessionProposal -> {
-                        val unsupportedNetworks = wcEvent.requiredChainIds.filter {
-                            blockchainHelper.chainIdToNetworkIdOrNull(it) == null
-                        }
-
-                        val supportedNetworks = (wcEvent.requiredChainIds + wcEvent.optionalChainIds)
-                            .mapNotNull(blockchainHelper::chainIdToFullNameOrNull)
-                            .distinct()
-
-                        if (unsupportedNetworks.isNotEmpty() || supportedNetworks.isEmpty()) {
+                        val unsupportedNetworks = wcEvent.requiredChainIds
+                            .filter { blockchainHelper.chainIdToNetworkIdOrNull(it) == null }
+                        if (unsupportedNetworks.isNotEmpty()) {
                             val error = WalletConnectError.ApprovalErrorUnsupportedNetwork(unsupportedNetworks)
                             handler.onSessionRejected(error)
                             return@onEach
                         }
-
-                        handler.onProposalReceived(proposal = wcEvent, networksFormatted = supportedNetworks.toString())
+                        val networksFormatted = (wcEvent.requiredChainIds + wcEvent.optionalChainIds)
+                            .mapNotNull { blockchainHelper.chainIdToFullNameOrNull(it) }
+                            .distinct()
+                            .toString()
+                        handler.onProposalReceived(proposal = wcEvent, networksFormatted = networksFormatted)
                     }
                     is WalletConnectEvents.SessionApprovalError -> {
                         val error = when (wcEvent.error) {