---
page_type: error
code: 83701
message: "83701: Data Session Establishment Failed Due To Internal Error"
level: ERROR
product: Super SIM
---

## Description

An unexpected error occurred while establishing a Data Session for your SIM. This is usually a transient error and should resolve itself in time.

### Possible Causes

- An unexpected error occurred in setting up a Data Session for your SIM.

### Possible Solutions

- Retry connecting to the Network from your device.
- If this issue persists for your SIM, please contact Twilio Support.