Unable to upload large files into network volume using aws s3 command

I have been trying to upload a model directory that consists of small files and 1 big model file. ❌ I used the aws sync command to upload the whole directory, but it always fail when uploading the big model file. ❌ I also tried to upload the single model file using the aws cp command, but same error response. ❌ I have also tried using the upload_large_file.py script from the github page. But same error. The error generally is Bad Gateway. But the specific error changes every time. I have attached some examples. I would like to also point out that sometimes using aws ls command takes a long time to return a response, and sometimes just failed. I have used a network volume the same way before and had no issues. Appreciate anyone's help regarding this. Thank you so much. 💾 Network volume info: Size: 12 GB Datacenter: EU-RO-1 Sample commands : 1) aws s3 sync --region EU-RO-1 --endpoint-url https://s3api-eu-ro-1.runpod.io/ whisper-model/ s3://123abcdef/models/tts/whisper-model/ 2) aws s3 cp --region EU-RO-1 --endpoint-url https://s3api-eu-ro-1.runpod.io/ model.safetensors s3://123abcdef/models/tts/whisper-model/ 3) ./upload_large_file.py --file whisper-model/model.safetensors \ --bucket 123abcdef \ --key models/stt/model.safetensors \ --access_key user_key12345678890 \ --secret_key rps_pass987654320 \ --endpoint https://s3api-eu-ro-1.runpod.io/ \ --region EU-RO-1