Session times out while trying to upgrade firmware

[nestman]

I found a bug. If the Yealink phone is connected to the same network switch as the computer used to upload the firmware, then the upgrade process will time out every single time. If the Yealink phone is located elsewhere in the office, then I can use my computer to access that phone and successfully upgrade the firmware.

So for me to have success, I unplugged my phone and plugged it into another network jack in an office down the hall, which uses a separate network switch. Then I went back to my desk, accessed the phone by it's IP address, and updated it's firmware. Please let others know of this so they don't encounter the same frustration I went through.

Thank you.