redlink server not starting

pnw4 · ‎10-07-2020

Hi,

I'm using MCUXpresso v11.2.0.build 4120 on Windows 10 with an LPC-Link2 board.

The problem is that the "Probe discovering operation for IDE LinkServer probes" never completes. The error is: "RedlinkServerException Cannot write to server: not open". The RedlinkServer log just shows:

[Started server]
[Closed]

...

I have re-flashed the LPC_Link2 board and it shows up in device manager as "LPC-LinkII UCom Port (COM4)"

Starting redlinkserv from the command line shows the following and exits to the command prompt:

C:\nxp\MCUXpressoIDE_11.2.0_4120\ide\binaries>redlinkserv -commandline
redlink>telnet server: bind to port 3025 - No error (rc 0)

C:\nxp\MCUXpressoIDE_11.2.0_4120\ide\binaries>

No redlinkserv process is running.

Can you suggest what to try next?

Cheers - Paul

pnw4 · ‎10-07-2020

The firewall is off. It seems to me that the debugger can't connect to the server because the server is not running!

I expected "redlinkserv -commandline" to manually start the server and give me a command prompt. It doesn't. It starts and then shuts down immediately.

converse · ‎10-08-2020

That definitely implies that the firewall (or something) is blocking the server. Double check firewalls, antivirus, anti malware etc.

converse · ‎10-07-2020

Check your firewall. It looks like it is preventing the debugger from connecting to the server.