Hi -- What do you guys do with all of these ports, as shown in netstat -b in Windows? (screenshot from netstat console) In particular, your documentation doesn't mention that you use 1298 and 1299 for anything, and it's causing a conflict with another application on this system. Device: xxxxxxxxxx 13 Replies xxxx Dropbox Customer Service Oct 10, 2019 Hi xxx, Thanks for writing in to Dropbox Support! My name is xxxxx and I am happy to help. I understand that you would like more information about the ports that the Dropbox application uses. Could you please attach the screenshot to this email directly? If the attachments are too large to email, feel free to send each one as a Dropbox shared link instead. Thanks in advance for your reply, xxxxx! I appreciate your patience with this process. Kind regards, xxx xxxxxxxxxx Oct 10, 2019 Thanks for getting back to me; screenshot is attached. If you are intentionally using 1298 and 1299, I'll need to add that to some documentation I'm currently working. -- xxxx dropbox_ports.png xxxxxxxxxxxxxxxxx Oct 11, 2019 Hi xxxx, Thanks for contacting Dropbox support. My name is xxx. I've taken a look into this further, it would appear this case is best to be handled by our engineering team. I have sent this case to them, they will review it and get back to you. Enjoy your weekend! Regards, xxx xxxxxxxx Oct 11, 2019 Thanks much, xxxx -- you too! Will stand by to hear from them. xxxxx xxxxx Dropbox Customer Service Oct 18, 2019 Hi xxxx Thanks for contacting Dropbox Support. My name's xxxxxxx. I understand you have some questions regarding the ports currently in use. 1298 and 1299 are common proxy ports. Are you aware of any proxy settings you may have set up or someone else at your company? You can check them using these steps: Using System Settings 1. For Windows 7, your Internet configuration settings can be found by going to your Control Panel from the Start menu. For Windows 8, these settings can be found by typing Control Panel at the Start screen and clicking on it. 2. Select Network and Internet Connections and click on Internet Options . Alternatively, you can also access Internet Options from Internet Explorer 's Tools menu. Press the alt key for the Internet Explorer menu. 3. Proxy settings can be set through LAN Settings from the Connections tab. Using Dropbox Preferences Alternatively, you can set Proxy settings for Dropbox only by manually entering proxy settings in the Dropbox preferences panel: 1. Right-click on the Dropbox icon in the system tray. 2. Click on your profile picture or initials and select Preferences... from the menu. 3. Click on the Network tab. 4. Fill in your proxy settings under the section appropriately labeled Proxy Settings For more information regarding proxy settings: https://help.dropbox.com/installs-integrations/desktop/connecting-through-proxy If you have any other questions, please reply back to this email. Regards, xxxxx xxxxxx Oct 18, 2019 Hi, xxxxxx -- No proxies are in use. Netstat says dropbox.exe is what opened the ports. -- xxxxx xxxxx Dropbox Customer Service Oct 18, 2019 Hi xxxxxx, Would you be able to provide the full netstat you ran? I know the screenshot you provided shows the ports, but I would like to run some tests on my end using the command you ran. Thanks! Regards, xxxxxx xxxxxxxx Oct 18, 2019 No prob, thanks for looking into it! This isn't a huge emergency or anything, but it's weird, and weird sometimes isn't good. In this case, I just ran netstat -b in a DOS box. The port numbers tend to vary over time. For instance, I shut down the dropbox client when this started happening, and when I relaunched it just now, it opened a bunch of connections on completely different ports: I'm actually developing an application at the moment that uses 1298 and 1299, and I first noticed the issue when my own program couldn't open those ports. That's when I ran netstat to see who was using them. -- xxxxx xxxxxxx Dropbox Customer Service Oct 21, 2019 Hi xxxxxx, I did a test on my end and it's establishing ports on different connections as well. All of them are TCP. Since 1298 and 1299 aren't needed ports, I'd recommend just blocking Dropbox from using it since your other program will be. From what I can see it's just establish TCP connections and 443 protocol. Is it listening on 80 or 443 as well? Regards, xxxxxx xxxxxx Oct 23, 2019 No, it's not listening on those ports (good thing, too.) It's accessing dropbox.com in the 162.125.1.x range using https. Your server is the one that's listening on 443, in other words. -- xxxxx xxxxxx Dropbox Customer Service Oct 23, 2019 Hi xxxxx, Yeah if that's the case, I think it's safe to try to just avoid 1298 and 1299. It's a good that it's on the https range, so I don't see anything severe here. If you can block Dropbox from using those ports, I would say just go ahead and go for it. Regards, xxxxxxxxx xxxxxx Oct 23, 2019 Again, it's not a matter of you guys using those ports -- you're free to do so -- but you need to document it. -- xxxxxxx xxxxxxxx Dropbox Customer Service Oct 23, 2019 Hi xxxxxxxx, I completely agree. I'm going to talk with some people on my end and make sure we document these ports being used. Regards, xxxxxx (ticket closed)