In our support centre, all the phones are in the same device pool, same region, same mgrl, same css, bascially all the phone have the same settings however, some of the phone have the latest fireware while some of the other phones have the previous level of firmware. Even a reset of the phone or reseating the network cable does not force the phone to download the new firmware.
One thing I did notice was that the phones that have the previous level of firmware have a different ip address range compared to phones with the latest firmware version.
What can I check to get these phone to download the new firmware.
Thanks a million