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RT-AC3100 Issue with Visual Studio Connection

DMoody007

New Around Here
I am a programmer that uses Visual Studio for development work. I hooked up an Asus RT-AC3100 router the other day and it is working for almost everything except the one main thing I need. My ability to connect to a remote website with Visual Studio via FTP.

I can connect to the website without issue. It will connect and show me the folders and files on the site. I can navigate the files like using File Explorer. The issue is that I can not open the pages in the software to edit or save. I get an error that I can not access the file.

If I bypass the router by directly connecting to the internet or connecting through a cell phone hotspot, I have no issues with the Visual Studio working as expected. The moment I try to go through the Asus router, it fails.

I am used to programming some firewalls and routers but this one stumps me.
  • I have disabled the firewall and it doesn't make a difference
  • I queried Visual Studio for ports needed and I have ensured the ports are open in port forwarding but no luck
  • What I find disturbing is logging. There doesn't appear to be any logging that shows detailed traffic, what is being allowed and what is being blocked.
  • I am also missing being able to see specific firewall rules to try and debug what is being allowed and disallowed
Hoping someone with more experience than I with Asus Routers can give me a direction for how to debug this router. How to determine what is being blocked and how to unblock its traffic but still keep the router somewhat secure.
 
If I bypass the router by directly connecting to the internet

What is the ISP device?

- Modem (your Asus is getting public WAN IP)
- Gateway (your Asus is getting private WAN IP)

If you need port forwarding and your Asus is behind ISP Gateway - you have another firewall upstream.
 
Hello - Thanks for responding.
I have Spectrum. I had a Spectrum Cable Modem and a Spectrum Wifi Router. The router died and I decided to use this Asus router in its place instead of paying Spectrum rent on their router. It was new in box and just collecting dust. The modem is still the same. If I connect the PC directly to the modem, I have no issues so I don't think the modem applies in this case.
 
You have to provide more specific information about the FTP error and the devices involved. FTP has Passive and Active mode. It changes the way the connection is established. Spectrum Cable Modem doesn't say much. What firmware is your Asus router running (latest available stock Asuswrt?), are you getting public WAN IP from ISP DHCP (confirm), is UPnP enabled (default), what do you see in port forwarding status (System Log menu, Port Forwarding tab), etc. information may also help.
 
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