diff --git a/packages/apps-config/src/endpoints/production.ts b/packages/apps-config/src/endpoints/production.ts
index 130d5e0e0e..47d95e23e4 100644
--- a/packages/apps-config/src/endpoints/production.ts
+++ b/packages/apps-config/src/endpoints/production.ts
@@ -487,8 +487,8 @@ export const prodChains: Omit<EndpointOption, 'teleport'>[] = [
     info: 'polkadex',
     providers: {
       // OnFinality: 'wss://polkadex.api.onfinality.io/public-ws', // https://github.com/polkadot-js/apps/issues/11827
-      PolkadexSup: 'wss://so.polkadex.ee',
-      RadiumBlock: 'wss://polkadex.public.curie.radiumblock.co/ws'
+      PolkadexSup: 'wss://so.polkadex.ee'
+      // RadiumBlock: 'wss://polkadex.public.curie.radiumblock.co/ws', // https://github.com/polkadot-js/apps/issues/12067
     },
     text: 'Polkadex',
     ui: {
diff --git a/packages/apps-config/src/endpoints/productionRelayKusama.ts b/packages/apps-config/src/endpoints/productionRelayKusama.ts
index b83d1649a4..696945fc5f 100644
--- a/packages/apps-config/src/endpoints/productionRelayKusama.ts
+++ b/packages/apps-config/src/endpoints/productionRelayKusama.ts
@@ -408,7 +408,7 @@ export const prodParasKusama: Omit<EndpointOption, 'teleport'>[] = [
     isPeopleForIdentity: true,
     paraId: 2281,
     providers: {
-      Kippu: 'wss://kreivo.kippu.rocks/'
+      // Kippu: 'wss://kreivo.kippu.rocks/' // https://github.com/polkadot-js/apps/issues/12069
       // Virto: 'wss://kreivo.io/' // https://github.com/polkadot-js/apps/issues/11544
     },
     relayName: 'kusama',
diff --git a/packages/apps-config/src/endpoints/testingRelayPaseo.ts b/packages/apps-config/src/endpoints/testingRelayPaseo.ts
index 66d4e2a813..09aee6cd23 100644
--- a/packages/apps-config/src/endpoints/testingRelayPaseo.ts
+++ b/packages/apps-config/src/endpoints/testingRelayPaseo.ts
@@ -115,7 +115,7 @@ export const testParasPaseo: Omit<EndpointOption, 'teleport'>[] = [
     isPeopleForIdentity: true,
     paraId: 4910,
     providers: {
-      FINTRA: 'wss://testnet.fintra.network'
+      // FINTRA: 'wss://testnet.fintra.network' // https://github.com/polkadot-js/apps/issues/12068
     },
     relayName: 'paseo',
     text: 'Fintra',