Why is WebClient DownloadData working on IIS Express but not on IIS?












0















I have the following piece of code that is getting some data from a url.



WebClient webClient = new WebClient();
byte imageBytes = webClient.DownloadData(url);


The url variable is just a string but didn't work even if I make it a Uri.



While this is working fine when I'm running the site using IIS Express, when I load it via IIS the webClient.DownloadData(url) call is throwing an exception with message: "A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond IP:port", where IP and port are the values for the ip and port of the url I'm trying to access.



Also, if I go directly to that url using a browser it works fine. I turned the firewall completely off in case it was blocking the response from the external site but didn't make any difference.
Thanks










share|improve this question























  • what is the url?

    – Hassaan
    Nov 16 '18 at 13:30











  • Have you tried it with a different URL, for example one at google?

    – Andrew Morton
    Nov 16 '18 at 13:32











  • Most obvious difference is that IIS Express runs under your user account whereas IIS will be running under other accounts (that may not have network credentials). Are you running on a home/unmanaged network or a work/managed network environment, where e.g. proxy and firewall rules may be implemented by other network devices?

    – Damien_The_Unbeliever
    Nov 16 '18 at 13:39











  • I tried a URL pointing to Google but failed too.

    – msokrates
    Nov 16 '18 at 13:39











  • I'm running it on a work network, behind a proxy. This is failing on my dev machine though

    – msokrates
    Nov 16 '18 at 13:40


















0















I have the following piece of code that is getting some data from a url.



WebClient webClient = new WebClient();
byte imageBytes = webClient.DownloadData(url);


The url variable is just a string but didn't work even if I make it a Uri.



While this is working fine when I'm running the site using IIS Express, when I load it via IIS the webClient.DownloadData(url) call is throwing an exception with message: "A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond IP:port", where IP and port are the values for the ip and port of the url I'm trying to access.



Also, if I go directly to that url using a browser it works fine. I turned the firewall completely off in case it was blocking the response from the external site but didn't make any difference.
Thanks










share|improve this question























  • what is the url?

    – Hassaan
    Nov 16 '18 at 13:30











  • Have you tried it with a different URL, for example one at google?

    – Andrew Morton
    Nov 16 '18 at 13:32











  • Most obvious difference is that IIS Express runs under your user account whereas IIS will be running under other accounts (that may not have network credentials). Are you running on a home/unmanaged network or a work/managed network environment, where e.g. proxy and firewall rules may be implemented by other network devices?

    – Damien_The_Unbeliever
    Nov 16 '18 at 13:39











  • I tried a URL pointing to Google but failed too.

    – msokrates
    Nov 16 '18 at 13:39











  • I'm running it on a work network, behind a proxy. This is failing on my dev machine though

    – msokrates
    Nov 16 '18 at 13:40
















0












0








0








I have the following piece of code that is getting some data from a url.



WebClient webClient = new WebClient();
byte imageBytes = webClient.DownloadData(url);


The url variable is just a string but didn't work even if I make it a Uri.



While this is working fine when I'm running the site using IIS Express, when I load it via IIS the webClient.DownloadData(url) call is throwing an exception with message: "A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond IP:port", where IP and port are the values for the ip and port of the url I'm trying to access.



Also, if I go directly to that url using a browser it works fine. I turned the firewall completely off in case it was blocking the response from the external site but didn't make any difference.
Thanks










share|improve this question














I have the following piece of code that is getting some data from a url.



WebClient webClient = new WebClient();
byte imageBytes = webClient.DownloadData(url);


The url variable is just a string but didn't work even if I make it a Uri.



While this is working fine when I'm running the site using IIS Express, when I load it via IIS the webClient.DownloadData(url) call is throwing an exception with message: "A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond IP:port", where IP and port are the values for the ip and port of the url I'm trying to access.



Also, if I go directly to that url using a browser it works fine. I turned the firewall completely off in case it was blocking the response from the external site but didn't make any difference.
Thanks







c# iis iis-express webclient-download






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 16 '18 at 13:26









msokratesmsokrates

1517




1517













  • what is the url?

    – Hassaan
    Nov 16 '18 at 13:30











  • Have you tried it with a different URL, for example one at google?

    – Andrew Morton
    Nov 16 '18 at 13:32











  • Most obvious difference is that IIS Express runs under your user account whereas IIS will be running under other accounts (that may not have network credentials). Are you running on a home/unmanaged network or a work/managed network environment, where e.g. proxy and firewall rules may be implemented by other network devices?

    – Damien_The_Unbeliever
    Nov 16 '18 at 13:39











  • I tried a URL pointing to Google but failed too.

    – msokrates
    Nov 16 '18 at 13:39











  • I'm running it on a work network, behind a proxy. This is failing on my dev machine though

    – msokrates
    Nov 16 '18 at 13:40





















  • what is the url?

    – Hassaan
    Nov 16 '18 at 13:30











  • Have you tried it with a different URL, for example one at google?

    – Andrew Morton
    Nov 16 '18 at 13:32











  • Most obvious difference is that IIS Express runs under your user account whereas IIS will be running under other accounts (that may not have network credentials). Are you running on a home/unmanaged network or a work/managed network environment, where e.g. proxy and firewall rules may be implemented by other network devices?

    – Damien_The_Unbeliever
    Nov 16 '18 at 13:39











  • I tried a URL pointing to Google but failed too.

    – msokrates
    Nov 16 '18 at 13:39











  • I'm running it on a work network, behind a proxy. This is failing on my dev machine though

    – msokrates
    Nov 16 '18 at 13:40



















what is the url?

– Hassaan
Nov 16 '18 at 13:30





what is the url?

– Hassaan
Nov 16 '18 at 13:30













Have you tried it with a different URL, for example one at google?

– Andrew Morton
Nov 16 '18 at 13:32





Have you tried it with a different URL, for example one at google?

– Andrew Morton
Nov 16 '18 at 13:32













Most obvious difference is that IIS Express runs under your user account whereas IIS will be running under other accounts (that may not have network credentials). Are you running on a home/unmanaged network or a work/managed network environment, where e.g. proxy and firewall rules may be implemented by other network devices?

– Damien_The_Unbeliever
Nov 16 '18 at 13:39





Most obvious difference is that IIS Express runs under your user account whereas IIS will be running under other accounts (that may not have network credentials). Are you running on a home/unmanaged network or a work/managed network environment, where e.g. proxy and firewall rules may be implemented by other network devices?

– Damien_The_Unbeliever
Nov 16 '18 at 13:39













I tried a URL pointing to Google but failed too.

– msokrates
Nov 16 '18 at 13:39





I tried a URL pointing to Google but failed too.

– msokrates
Nov 16 '18 at 13:39













I'm running it on a work network, behind a proxy. This is failing on my dev machine though

– msokrates
Nov 16 '18 at 13:40







I'm running it on a work network, behind a proxy. This is failing on my dev machine though

– msokrates
Nov 16 '18 at 13:40














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