Windows 10: Firewall blocking port 21 even though IIS FTP server is enabled

Discus and support Firewall blocking port 21 even though IIS FTP server is enabled in AntiVirus, Firewalls and System Security to solve the problem; Hello! I'm puzzled. If I turn off windows firewall I can hit the FTP server from the WAN fine and even from the LAN. Turn the firewall back on and... Discussion in 'AntiVirus, Firewalls and System Security' started by Handler, Apr 7, 2016.

  1. Handler Win User

    Firewall blocking port 21 even though IIS FTP server is enabled


    Hello!

    I'm puzzled. If I turn off windows firewall I can hit the FTP server from the WAN fine and even from the LAN. Turn the firewall back on and that port is blocked! When I installed IIS for the FTP server I added (ticked the boxes) for FTP Server in the firewall.

    The $64,000 question is this; why is the firewall being a pest?

    Thanks!

    Update: I added my own inbound rule for ports 20-21. I can connect via the WAN but the LAN says it's blocked. What am I missing????

    :)
     
    Handler, Apr 7, 2016
    #1

  2. W10 IIS FTPS (Secure) Can't run passive mode port forwarding unknown

    OS Windows 10 Pro, I have installed IIS FTP on my PC. I can run FTP from an client running fine but NOT Secure. So I "Create Certificate Request" (CCR) send it to my certificate provider. In return I get my certificate. Then I install my certificate "Complete
    Create Certificate Request" On my IIS\FTP I active my certificate an run under active "required secure connection" ok

    Keep in mind I have only port 21-22 forwarded to my PC

    Now I start from client FTPS (Secure) then is stop..

    27 Entering Passive Mode (192,168,2,1,4,98).

    Server reports local IP -> Redirect to: xxx.xxx.xx.xxx

    ISS (Secure) block the passive mode.

    QST

    I there somebody that can tell me witch port I have to forwarded

    Thx Robert
     
    R van Wingerden, Apr 7, 2016
    #2
  3. NSU Error Message

    Check with your rpivider that your proxy supports FTP (port TCP 21 traffic). Nokia Software update uses port 21 firstly (Active FTP), will then try passive FTP, and will then try 80 (HTTP). It is known that NSU has problems with connecting through proxy
    servers, so if problems persist and you cannot disable your proxy, please try taking the phone to one of your relatives and try performing the update there.

    Clearly, in your case, the proxy is the bottleneck...
     
    csteelooper, Apr 7, 2016
    #3
  4. Handler Win User

    Firewall blocking port 21 even though IIS FTP server is enabled

    Strange as it is, I had to make my own inbound firewall rule for this to work. The builtin one must be there for show. It's windows! Go figure!
     
    Handler, Apr 8, 2016
    #4
Thema:

Firewall blocking port 21 even though IIS FTP server is enabled

Loading...
  1. Firewall blocking port 21 even though IIS FTP server is enabled - Similar Threads - Firewall blocking port

  2. Setting up FTP site with Windows Server 2016 IIS

    in Windows 10 Gaming
    Setting up FTP site with Windows Server 2016 IIS: Hi everyone,I'm super new to Windows Server 2016 so please bare with me.I currently have my FTP site set up using this instruction below.https://neoserver.site/help/setting-ftp-server-windows-server-2016I've found that our physical firewall was blocking port 20 and 21 so went...
  3. Setting up FTP site with Windows Server 2016 IIS

    in Windows 10 Software and Apps
    Setting up FTP site with Windows Server 2016 IIS: Hi everyone,I'm super new to Windows Server 2016 so please bare with me.I currently have my FTP site set up using this instruction below.https://neoserver.site/help/setting-ftp-server-windows-server-2016I've found that our physical firewall was blocking port 20 and 21 so went...
  4. FTP Access IIS

    in Windows 10 Network and Sharing
    FTP Access IIS: Hi I set up an FTP site using IIS to share files within my LAN. I have created a new user on the same PC as FTP site but when i try to access FTP folder from any device on the LAN using username and password of my new user it refuses to let me in showing the following: Could...
  5. Windows Defender Firewall + Windows FTP Server

    in Windows 10 Network and Sharing
    Windows Defender Firewall + Windows FTP Server: Why is windows defender firewall disobeying my firewall rules? Enabled Windows FTP Servers via Windows 10 Features. Rules are in the firewall allowing FTP access for both passive & control rules were injected through enabling the service. FTP packets are dropped by the...
  6. Windos firewall problem then uploading files to server with ftp client

    in AntiVirus, Firewalls and System Security
    Windos firewall problem then uploading files to server with ftp client: Hi, I have problem with files upload to server. I tired with Filezilla and Cyberduck and both have same symptoms. Op. system Windows 10. Both ftp clients start uploading files and its take some minutes (10-15) and after that file upload finish and upload stopping. Messages...
  7. Can't start FTP server Port in use or ??

    in Windows 10 Network and Sharing
    Can't start FTP server Port in use or ??: I am very ashamed the knowledge I have of computers but seem be stumped on this one.. I have turned of my windows firewall completely and opened ports in my router. Why am I getting this? Do I need to force kill whatever is using it? image — ImgBB I opened ports on...
  8. How to port forward FTP Server creted by IIS in Windows 10

    in Windows 10 Network and Sharing
    How to port forward FTP Server creted by IIS in Windows 10: Please help me I'm desperate...I can't seem to find the answer to this. I have set up an FTP Server using IIS on Win10. 1. Permissions, firewall works fine on lan, but outside I can't seem to access it. 2. I have port forwarded the server and also the passive data port...
  9. IIs on Win10 unusual ports firewall config

    in Windows 10 Network and Sharing
    IIs on Win10 unusual ports firewall config: Hello! I Installed IIS on my Win10 machine. I build websites for custumers and I attribute each a specific port. My Router let it pass by but I can't figure out on how configure windows firewall. Please Help! Joel ***moved on english forum****...
  10. Ftp server

    in Windows 10 Network and Sharing
    Ftp server: Hello I was wondering if there is any app or a way that allow me to sharing files with computers that are not on my network. 112192