# Voyage II: Federating the Monolith - CONFIGURING THE ROUTER

**URL:** <https://community.apollographql.com/t/voyage-ii-federating-the-monolith-configuring-the-router/7321>\
**Category:** Other Apollo Topics\
**Tags:** odyssey\
**Created:** [March 21, 2024, 7:28pm UTC](https://community.apollographql.com/t/voyage-ii-federating-the-monolith-configuring-the-router/7321 "2024-03-21T19:28:48Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![akarunakaran\_sstk](https://sea1.discourse-cdn.com/flex019/user_avatar/community.apollographql.com/akarunakaran_sstk/32/4985_2.png) [@akarunakaran\_sstk](https://community.apollographql.com/u/akarunakaran_sstk)\
**Post date:** [March 21, 2024, 7:28pm UTC](https://community.apollographql.com/t/voyage-ii-federating-the-monolith-configuring-the-router/7321/1 "2024-03-21T19:28:48Z")

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Hi,  
I’m stuck at the authentication step.  
I have setup my studio monolith graph on port 4000  
subgraph listening on 4001 from the previous chapter,  
when I run the router, I do see the message  
`We should see output messages in the terminal, with our router running at 127.0.0.1:4000.`

However, when I query through studio I see the following error

```auto
{
  "name": "TypeError",
  "message": "Failed to fetch",
  "stack": "TypeError: Failed to fetch\n at https://studio-ui-deployments.apollographql.com/build/static/js/app.0fbc564e4fdd6b25236e.js:2:128207\n at r
}

```

```auto

```

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<div class="post-metadata">

**Author:** ![akarunakaran\_sstk](https://sea1.discourse-cdn.com/flex019/user_avatar/community.apollographql.com/akarunakaran_sstk/32/4985_2.png) [@akarunakaran\_sstk](https://community.apollographql.com/u/akarunakaran_sstk)\
**Post date:** [March 21, 2024, 8:02pm UTC](https://community.apollographql.com/t/voyage-ii-federating-the-monolith-configuring-the-router/7321/2 "2024-03-21T20:02:30Z")

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Got it working thanks, was interacting inside the wrong explorer

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<div class="post-metadata">

**Author:** ![Michelle\_Mabuyo](https://sea1.discourse-cdn.com/flex019/user_avatar/community.apollographql.com/michelle_mabuyo/32/80_2.png) [@Michelle\_Mabuyo](https://community.apollographql.com/u/Michelle_Mabuyo)\
**Post date:** [March 22, 2024, 2:36pm UTC](https://community.apollographql.com/t/voyage-ii-federating-the-monolith-configuring-the-router/7321/3 "2024-03-22T14:36:59Z")

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Glad to hear you were able to troubleshoot the issue! 🙂