topic Re: Odd TFTP Issue ICX7750 in ICX Switches

Odd TFTP Issue ICX7750

tL888 — Tue, 12 Aug 2025 03:34:45 GMT

Good Evening - we are having a strange TFTP issue with a startup-config and a 7750 and i am hoping it is something silly that some might recognize!

We are connected locally to the switch console port - no issues.

We also have a local connection with the switch management port - 1.1.1.1/24 -- Laptop(TFTP Server) - 1.1.1.2/24. *Laptop_W11 is running TFTPD64. We can ping back and forth between the management port and the laptop, the laptop is listening on port 69, and everything appears to be good.

We can successfully upload the startup config to the TFTP server on the laptop and into our chosen directory:

#copy startup-config tftp 1.1.1.2 TEST.txt

Then we make similar connections to another 7750 - same model, code, licensing, etc. -- Management port is configured and enabled at 1.1.1.3/24 -- we can ping back and forth successfully - TFTP server is the same.

But, when we use: #copy tftp startup-config 1.1.1.2 TEST.txt = nothing happens? And we get the error:

TFTP Session timed out. Error - can't download startup-config from TFTP server.

Like there is no communication happening - no logs in the TFTP server, nothing - even though both 7750s are the same, there is ICMP communication between both 7750s and the TFTP server, and there are no changes to the settings on the TFTP server.

*These are locally connected - no FWs, Windows FW on the laptop (TFTP server) is allowing tftp

Very odd. Any ideas are greatly appreciated.

Re: Odd TFTP Issue ICX7750

Mayank — Tue, 12 Aug 2025 07:59:33 GMT

Hi tL888,

Thank you for posting your query !!!

Have you try to take back via USB if not can you give it a try as shown below.

We can make a copy of a Startup config direct to a USB stick, connect a USB thumbdrive to the USB A port on the switch, wait for the USB to be recognised and then you will need to run the following commands:

Ena

copy startup-config disk0 “filename.cfg”

For example – copy running-config disk0 standard.cfg

This will save the file to usb for future use.

https://docs.commscope.com/bundle/fastiron-08095-commandref/page/GUID-6454A864-BCAC-418C-8BBC-DF4833F4772E.html

You can also watch short video in the below link for your ref:

https://youtu.be/Qghs-_I8dCU?si=TCGB9mAJyDe3MIo9

Please let us know how it goes.

Moving Forward If this issue is not resolved , Please log a ticket with the below link so that we will help you further

https://support.ruckuswireless.com/contact-us

I hope this information helps you

Please feel free to leave us a message if any concerns

Note: Please feel free to mark the post as ACCEPTED SOLUTIONS if its addressed your query.

Thanks
Mayank

Re: Odd TFTP Issue ICX7750

Chandini — Tue, 12 Aug 2025 14:04:35 GMT

Hi tL888,

Thank you for reaching us

Could you please confirm whether the issue also occurs when you connect the laptop via Ethernet and attempt to take a backup using TFTP? If this test hasn’t been performed yet, would you be able to try it over an Ethernet connection and let us know the outcome?

Additionally, since you mentioned the device is a 7750 switch, could you clarify whether this is a fiber-based switch?

Thank you

Re: Odd TFTP Issue ICX7750

tL888 — Tue, 12 Aug 2025 14:53:37 GMT

Utilizing a USB works in this scenario, but We are looking to understand this issue with TFTP since that is the way our technicians primarily image the switches.

Re: Odd TFTP Issue ICX7750

tL888 — Tue, 12 Aug 2025 14:57:11 GMT

Could you please confirm whether the issue also occurs when you connect the laptop via Ethernet and attempt to take a backup using TFTP? --> The entire scenario is being done over Ethernet.

We have a console connection to the Laptop that is running the TFTP server and an Ethernet connection between the Mgmt port_1.1.1.1/24 and the laptop 1.1.1.2/24.

The switch is a 7750-48C.

Re: Odd TFTP Issue ICX7750

tL888 — Tue, 12 Aug 2025 19:24:19 GMT

The same TFTPD64 server setup is successfully used over our network with other switches. It seems to only be happening 'locally' -- and only when we are directly connected to the Management Interface.

We reset the the target 7750 to defaults and started 'fresh'. Enabled the Mgmt Interface - gave it IP 1.1.1.1/24 - connected to the laptop/ tftp server at 1.1.1.2/24 - successful ping. All Windows FW rules are in place on the laptop/ tftp server - and we get no activity running #copy tftp startup-config 1.1.1.2 TEST.txt.

But we can successfully do this process over and over to any of out other Ruckus devices - on our network.

Re: Odd TFTP Issue ICX7750

Chandini — Wed, 13 Aug 2025 15:44:16 GMT

Hi tL888,

Thank you for reaching us

Kindly log a support ticket using the link below:

https://support.ruckuswireless.com/contact-us

Once the ticket is created, we’ll be happy to work with you to resolve the issue.

Thank you