Can no longer connect

[lroseriver]

I've been using Core for all my FTP needs when suddenly yesterday it would no longer connect.

Getting this error:

Can't establish connection -- > 162.241.224.188:21 @TueOct 02 13:47:40 2018 (10038-2)
An operation was attempted on something that is not a socket.

I've been using my iPhone hotspot for work all year, no problems, until now. Thanks for any and all ideas1

[ForumAdmin]

do you have any issues with any other types of internet connections? Users have reported FTP stopped working after a recent Windows 7 update but it has not be reproducible here. It may be indirectly related to security software or you may need to add coreftp.exe as a firewall exception.

[lroseriver]

Thanks for answering. I have no other internet issues. I've tried CoreFTP, FileZilla, and WinSCP, all of which worked previously and now no longer connect.

I added coreftp.exe as a firewall exception yesterday, to no avail.

I also uninstalled a recent Windows update. That didn't work either.

For testing, I tried accessing the server through net2ftp and was successful, but I'd rather use a local client for security reasons.

Any other thoughts?

[MIDWESTTOOL]

Out of no where i started having issues too. i cant post through the network but if i hook my cnc directly to the computer it works fine.

STOR 28D711B.nc
Connect socket #960 to 192.168.10.199, port 57509...
150 File status okay; about to open data connection.
226 Closing data connection.
28D711B.nc - 1304 bytes transferred in 0 seconds
Transfer time: 00:00:12
PASV

Disconnected...
PORT command failed
Error loading directory...