# 83700: Attachment Failed Due To Internal Error

Log Type: TWILIO

Log Level: ERROR

## Description

An unexpected error occurred while attempting to process your SIM's attachment request to the Network. This is usually a transient error and should resolve itself in time.

### Possible causes

* An unexpected error occurred in processing your SIM's attachment to the Network

### Possible solutions

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