An attempt was made to access a socket in a way forbidden by its access permissions about px

[wiz21b]

Forget about it, a cntlm proxy was already running (and took over the socket/port) :-(

[genotrance]

I guess it could do with a nicer error message :)

[genotrance]

I've improved the error message in v0.2.1. Thanks for your feedback.

[domOrielton]

Not sure if it is something incorrect I have done but I'm still getting the following error in debug-MainProcess.log when px is trying to use a port that is already in use (port was still set to the standard 3128).

[WinError 10013] An attempt was made to access a socket in a way forbidden by its access permissions

I ran netstat -ban and could see the port was being used by spoolsv
[spoolsv.exe] TCP 10.171.42.80:3128 10.171.30.40:59606 ESTABLISHED

Changed the port in px.ini and everything worked again just fine - only mentioning this in case the improved error message you mentioned has been lost in some other change.

Thanks for a very useful program :)

[genotrance]

Can you please share the log or full stack trace? Will help identify where this is coming from.

[domOrielton]

It doesn't seem to give much of a clue in the log - it creates a debug-MainProcess.log file with the following contents (spoolsv.exe was no longer using the port so I fired up CNTLM to intentionally use port 3128)

MainProcess: MainThread: 1529330679: attach_console: Attaching to console 13684
MainProcess: MainThread: 1529330679: parse_proxy: [('proxy.something.com', 80)]
Serving at 127.0.0.1:3128 proc MainProcess
MainProcess: MainThread: 1529330679: parse_config: proxy:server = proxy.something.com:80
MainProcess: MainThread: 1529330679: parse_config: proxy:port = 3128
MainProcess: MainThread: 1529330679: parse_config: proxy:listen = 127.0.0.1
MainProcess: MainThread: 1529330679: parse_config: proxy:allow = *.*.*.*
MainProcess: MainThread: 1529330679: parse_config: proxy:gateway = 0
MainProcess: MainThread: 1529330679: parse_config: proxy:hostonly = 0
MainProcess: MainThread: 1529330679: parse_config: proxy:noproxy = 127.0.0.*, 10.*.*.*, 192.168.*.*
MainProcess: MainThread: 1529330679: parse_config: proxy:useragent = 
MainProcess: MainThread: 1529330679: parse_config: settings:workers = 2
MainProcess: MainThread: 1529330680: parse_config: settings:threads = 5
MainProcess: MainThread: 1529330680: parse_config: settings:idle = 30
MainProcess: MainThread: 1529330680: parse_config: settings:socktimeout = 5.0
MainProcess: MainThread: 1529330680: parse_config: settings:proxyreload = 60
MainProcess: MainThread: 1529330680: parse_config: settings:foreground = 0
MainProcess: MainThread: 1529330680: parse_config: settings:log = 1
MainProcess: MainThread: 1529330680: detach_console: Freed console successfully
[WinError 10013] An attempt was made to access a socket in a way forbidden by its access permissions

I can't see a version in the log or in the px.exe properties but I'm using the the latest Windows binary from https://github.com/genotrance/px/releases on a Windows 10 PC (build 1607).

If I can provide anything else just let me know

[genotrance]

Looks like I was only printing the exception message and not a clean message - fixed this for real :)