SSLError The write operation timed out

[alifazeli]

Hi
After number of uploads (less than 300) when i use --spreadsheet upload i get this massage and i should perform command again everytime.
i use
./ia upload --spreadsheet=uploading-d4.csv --retries=100 --sleep=100 --checksum

File "/home/archive/ia/.bootstrap/_pex/pex.py", line 468, in execute_entry
File "/home/archive/ia/.bootstrap/_pex/pex.py", line 486, in execute_pkg_resources
File "/root/.pex/install/internetarchive-1.8.1-py2.py3-none-any.whl.d81b82447552eee4d27268dc3c5680c518b77fe4/internetarchive-1.8.1-py2.py3-none-any.whl/internetarchive/cli/ia.py", line 159, in main
sys.exit(ia_module.main(argv, session))
File "/root/.pex/install/internetarchive-1.8.1-py2.py3-none-any.whl.d81b82447552eee4d27268dc3c5680c518b77fe4/internetarchive-1.8.1-py2.py3-none-any.whl/internetarchive/cli/ia_upload.py", line 252, in main
session)
File "/root/.pex/install/internetarchive-1.8.1-py2.py3-none-any.whl.d81b82447552eee4d27268dc3c5680c518b77fe4/internetarchive-1.8.1-py2.py3-none-any.whl/internetarchive/cli/ia_upload.py", line 86, in _upload_files
response = item.upload(files, **upload_kwargs)
File "/root/.pex/install/internetarchive-1.8.1-py2.py3-none-any.whl.d81b82447552eee4d27268dc3c5680c518b77fe4/internetarchive-1.8.1-py2.py3-none-any.whl/internetarchive/item.py", line 860, in upload
request_kwargs=request_kwargs)
File "/root/.pex/install/internetarchive-1.8.1-py2.py3-none-any.whl.d81b82447552eee4d27268dc3c5680c518b77fe4/internetarchive-1.8.1-py2.py3-none-any.whl/internetarchive/item.py", line 710, in upload_file
**request_kwargs)
File "/root/.pex/install/internetarchive-1.8.1-py2.py3-none-any.whl.d81b82447552eee4d27268dc3c5680c518b77fe4/internetarchive-1.8.1-py2.py3-none-any.whl/internetarchive/session.py", line 370, in send
r = super(ArchiveSession, self).send(request, **kwargs)
File "/root/.pex/install/requests-2.19.1-py2.py3-none-any.whl.9c19d1f49965483c8e82326b964ec1050dff6851/requests-2.19.1-py2.py3-none-any.whl/requests/sessions.py", line 622, in send
r = adapter.send(request, **kwargs)
File "/root/.pex/install/requests-2.19.1-py2.py3-none-any.whl.9c19d1f49965483c8e82326b964ec1050dff6851/requests-2.19.1-py2.py3-none-any.whl/requests/adapters.py", line 511, in send
raise SSLError(e, request=request)
requests.exceptions.SSLError: HTTPSConnectionPool(host='s3.us.archive.org', port=443): Max retries exceeded with url: /ktp2019-bk3423/ktp2019-bk3423.pdf (Caused by SSLError(SSLError('The write operation timed out',),))
uploading ktp2019-bk3423.pdf: [################################] 3/7 - 00:02:01

its possible that its because of my internet connection. so is it possible to set proxy ai ?
and is it possible to set sleep between retries 2 hours for example? or any other solution?

thank you for support

my csv file attached

uploading-d4.txt