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Common solutions

  1. Reconnect to the instance with ctrl + d and tnr connect <instance_id>
  2. Upgrade tnr. Depending on your install method, you may have to use pip install tnr --upgrade or re-download the binary from the website
  3. Back up any important data, then delete and recreate the instance.

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Common errors

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Function not implemented

A common error you may encounter is some variant of “This function is not implemented.” What this means is that your program touches a portion of the CUDA API that we do not currently support. Check our Prototyping vs Production guide for supported features, and if you encounter this, please contact us.

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SSH errors

If you encounter SSH-related errors (like Error reading SSH protocol banner or permission issues), first retry the command. For quick fixes, back up critical data and recreate the instance. Instances cannot be stopped or restarted. For persistent SSH issues, see our SSH on Thunder Compute guide for alternative connection methods. To help prevent common issues and get the most out of Thunder Compute, we recommend these guides:

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Production mode as a last resort

If you continue to experience compatibility issues or errors that cannot be resolved through the above methods, consider switching to production mode by modifying your existing instance. Production mode provides maximum stability and reliability with all low-level optimizations disabled, ensuring complete compatibility for workloads that encounter persistent issues in the prototyping tier.

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Support

The fastest way to get support is to join our discord. Our founding team will personally respond to help you as quickly as possible.