AT&T Syn248 SB35010 Installation And Configuration Manual page 97

Syn248 Installation and Configuration Guide
A Syn248 device upgrade failed, the WebUI displays "Login to target device failed", and the WebUI
and device screens display the old software version.
Probable Cause
The software version of the
device you are currently
logged into is no longer
compatible with the software
version of other devices
within the network.
Troubleshooting
Corrective Action
1. Log on to the WebUI as administrator using the
IP address of a device that does not have updated
software and is not having any problems. Click
Device Management, then Update Device.
2. Select a device from the Update Device
drop-down list. Do not select the device whose IP
address you are using.
3. Click
updates its software and reboots.
4. After the device reboots, check the software
version number on the device to confirm that the
upgrade was successful.
On the Deskset, press MENU –> 4. Note the

Software Ver value.
On the Gateway, press the SELECT key to

access the Main Menu. Then select Device
Information, then SW Ver.
5. After updating all other devices, upgrade the
device whose IP address you are using.
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. The selected device