Had same issue with Firefox. I switched over to Chrome with options and all has been fine since.
ChromeOptions options = new ChromeOptions();
options.AddArgument("no-sandbox");
ChromeDriver driver = new ChromeDriver(ChromeDriverService.CreateDefaultService(), options, TimeSpan.FromMinutes(3));
driver.Manage().Timeouts().PageLoad.Add(System.TimeSpan.FromSeconds(30));