Why is urllib not downloading the file?

Question

linux

When using this function on Windows, everything worked fine, as soon as I switched to Ubuntu, such errors appeared urllib.error.ContentTooShortError: urlopen error retrieval incomplete: got only 81638 out of 2808891 bytes

Exception in thread Thread-89:
Traceback (most recent call last):
File "/usr/lib/python3.8/threading.py", line 932, in _bootstrap_inner
self.run()
File "/usr/lib/python3. 8/threading.py", line 870, in run
self._target(*self._args, **self._kwargs)
File "main.py", line 469, in _load_snaptik
urllib.request.urlretrieve(url, _name_file + " .mp4")
File "/usr/lib/python3.8/urllib/request.py", line 286, in urlretrieve
raise ContentTooShortError(
urllib.error.ContentTooShortError:

The code:

opener = urllib.request.build_opener()
    opener.addheaders = [('User-agent', 'Mozilla/5.0')]
    urllib.request.install_opener(opener)
    try:
        urllib.request.urlretrieve(url, _name_file + ".mp4")
    except TypeError:
        msg = _token_bot.send_message(message.chat.id, "⚠Данная ссылка недействительна, введите другую.⚠")
        return _token_bot.register_next_step_handler(msg, _search_url)