---
title: "SSO Authentication Failure: \"Failure when receiving data from the peer\""
description: "Troubleshooting for the SSO Authentication Failure: \"Failure when receiving data from the peer\""
---

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# SSO Authentication Failure: "Failure when receiving data from the peer"

## Troubleshooting for the SSO Authentication Failure: "Failure when receiving data from the peer"

### Issue

When trying to activate KeyShot Studio, the following error when signing in to KeyShot  
 Authentication state: Unauthenticated Message: "SSO exchange error:   
Failure when receiving data from the peer"

![](https://support.keyshot.com/hs-fs/hubfs/image-png-Jun-17-2026-03-25-13-1535-PM.png?width=400&height=287&name=image-png-Jun-17-2026-03-25-13-1535-PM.png)

### Environment Details

- KeyShot 
    - 2026.1+
- Subscription License

### Troubleshooting

Please check if you can access [https://login-configuration.keyshot.com/](https://login-configuration.keyshot.com/) in your browser. If you get a response in the browser but KeyShot fails to sign in, the error is likely caused by a corporate firewall or security appliance blocking HTTPS POST requests to [login.keyshot.com/oauth2/token](http://login.keyshot.com/oauth2/token).

### Resolution

Ask the customer's IT department to ensure the following endpoints are allowlisted for **HTTPS POST traffic** (not just GET):

- [https://login.keyshot.com/oauth2/token](https://login.keyshot.com/oauth2/token)

The exact IPs used can be found in auth\_cache.json: 

{  
  "authUrl": "https://login.keyshot.com/oauth2/authorize",  
  "beta": true,  
  "clientId": "xxxxxxxxxxx",  
  "clientName": "keyshot",  
  "configUrl": "https://login-configuration.keyshot.com/",  
  "localhostFailureRedirectUri": "https://app.keyshot.com/sign-in/failure",  
  "localhostPorts": \[  
    30794,  
    31017,  
    31672,  
    33552,  
    33771,  
    34393,  
    34626,  
    35353,  
    39419,  
    39503  
  \],  
  "localhostSuccessRedirectUri": "https://app.keyshot.com/sign-in/success",  
  "loginRedirectUri": "https://app.keyshot.com/logged-in/keyshot/beta",  
  "logoutRedirectUri": "https://app.keyshot.com/signed-out/keyshot/beta",  
  "logoutUrl": "https://login.keyshot.com/logout",  
  "proxySettings": {  
    "enableAuthentication": false,  
    "host": "localhost",  
    "obfuscatedPassword": "",  
    "port": 8080,  
    "proxyType": 2,  
    "username": ""  
  },  
  "revocationUrl": "https://login.keyshot.com/oauth2/revoke",  
  "tokenUrl": "https://login.keyshot.com/oauth2/token",  
  "userInfoUrl": "https://login.keyshot.com/oauth2/userInfo"  
}

Add the following KeyShot URLs to the Firewall Whitelist for the organization:

- \*.keyshot.io
- \*.keyshot.com
- \*.key.account.io
- \*api.keyshot.com
- [https://app.keyshot.com](https://app.keyshot.com)
- [https://auth.keyshot.com](https://auth.leyshot.com)
- [https://login.keyshot.com](https://login.keyshot.com)
- [https://login-configuration.keyshot.com](https://login-configuration.keyshot.com)
- [https://cognito-idp.us-east-2.amazonaws.com](https://cognito-idp.us-east-2.amazonaws.com)

NOTE: It is also recommended to have TCP Ports 80/443 open.

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