ICX 7550 UFI Firmware upgrade via TFTP Failing - Code 17

lalalava — Mon, 12 Jan 2026 18:19:11 GMT

I am attempting a firmware upgrade of my ICX 7550 L3 switch stack via TFTP. From Version 08.0.95fc to 10.0.1g (stability release). When attempting to copy from the TFTP, I am getting persistent timeout errors on the TFTP server and eventual failure on the switch side.

I have set up a PC as a TFTP server (10.17.2.100) and downloaded the new OS .bin image ("GZR10010g_cd6ufi.bin") that I am wanting to install.

I was able to copy configurations successfully from the Core to the TFTP server successfully

"copy running-config tftp 10.17.2.100 old_run" succeeds. File is copied to the TFTP location

When I try to copy from the TFTP server to the core, it fails.

"copy tftp flash 10.17.2.100 GZR10010g_cd6ufi.bin secondary" failing

Return failure code to the stack is "error code 17"

Troubleshooting steps so far include:

1. Trying different file locations

2. Checking file permissions

3. Disabling Windows firewall

4. Rebooting the stack

5. Running TFTP server application as administrator

Any ideas are appreciated!

Re: ICX 7550 UFI Firmware upgrade via TFTP Failing - Code 17

Chandini — Tue, 20 Jan 2026 10:43:24 GMT

Hi Lalalava

Thank you for reaching us

TFTP error code 17 typically indicates a timeout or connectivity failure when attempting to transfer a file via TFTP. In practice, this means the device could not successfully communicate with the TFTP server

Could you please let us know if you have attempted a upgrade using USB drive

Please find the link below with steps

https://community.ruckuswireless.com/t5/RUCKUS-Support-for-Lennar-Homes/How-to-Upgrade-a-RUCKUS-ICX-7150-C12P-Switch-using-a-USB-flash/m-p/46781

Thank you

topic Re: ICX 7550 UFI Firmware upgrade via TFTP Failing - Code 17 in ICX Switches

ICX 7550 UFI Firmware upgrade via TFTP Failing - Code 17

Re: ICX 7550 UFI Firmware upgrade via TFTP Failing - Code 17