selenium.common.exceptions.WebDriverException: Message: unknown error: net::ERR_TUNNEL_CONNECTION_FAILED - selenium-webdriver

Question

I am trying to open a website with a rotating authication proxy and I get this error. I dont understand why this is happening, im very new to coding and been watching alot of videos lmfao, but please help <3
File "B:\test\testchrome.py", line 21, in <module>
driver.get('https://www.expressvpn.com/what-is-my-ip')
File "C:\Users\o\AppData\Local\Programs\Python\Python310\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 449, in get
self.execute(Command.GET, {"url": url})
File "C:\Users\o\AppData\Local\Programs\Python\Python310\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 440, in execute
self.error_handler.check_response(response)
File "C:\Users\o\AppData\Local\Programs\Python\Python310\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 245, in check_response
raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.WebDriverException: Message: unknown error: net::ERR_TUNNEL_CONNECTION_FAILED
(Session info: chrome=110.0.5481.100)
Stacktrace:
Backtrace:
(No symbol) [0x011137D3]
(No symbol) [0x010A8B81]
(No symbol) [0x00FAB36D]
(No symbol) [0x00FA772D]
(No symbol) [0x00F9DC65]
(No symbol) [0x00F9F033]
(No symbol) [0x00F9DF02]
(No symbol) [0x00F9D324]
(No symbol) [0x00F9D241]
(No symbol) [0x00F9BC95]
(No symbol) [0x00F9C518]
(No symbol) [0x00FACF4C]
(No symbol) [0x01011E01]
(No symbol) [0x00FFB41C]
(No symbol) [0x01011215]
(No symbol) [0x00FFB216]
(No symbol) [0x00FD0D97]
(No symbol) [0x00FD253D]
GetHandleVerifier [0x0138ABF2+2510930]
GetHandleVerifier [0x013B8EC1+2700065]
GetHandleVerifier [0x013BC86C+2714828]
GetHandleVerifier [0x011C3480+645344]
(No symbol) [0x010B0FD2]
(No symbol) [0x010B6C68]
(No symbol) [0x010B6D4B]
(No symbol) [0x010C0D6B]
BaseThreadInitThunk [0x771000F9+25]
RtlGetAppContainerNamedObjectPath [0x77E17BBE+286]
RtlGetAppContainerNamedObjectPath [0x77E17B8E+238]````

Answer 1

This error...
File "C:\Users\o\AppData\Local\Programs\Python\Python310\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 449, in get
self.execute(Command.GET, {"url": url})
implies there was a error with the get() request.
I executed a basic Selenium-Python code block accessing the url https://www.expressvpn.com/what-is-my-ip as follows:
Code block:
driver.get('https://www.expressvpn.com/what-is-my-ip')
driver.save_screenshot("what-is-my-ip.png")
driver.quit()
Browser snapshot:
Conclusion
The basic program accessing the url https://www.expressvpn.com/what-is-my-ip works absolutely fine. So there can be two reasons for the error:
selenium.common.exceptions.WebDriverException: Message: unknown error: net::ERR_TUNNEL_CONNECTION_FAILED
Either the Proxy is down/invalid or the Proxy settings are incorrect.
References
Links to couple of useful documentations:
How to Fix ERR_TUNNEL_CONNECTION_FAILED in Google Chrome
How to Fix “err_tunnel_connection_failed” in Google Chrome
How To Fix ERR_TUNNEL_CONNECTION_FAILED in Chrome