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The VG248 software upgrade causes the router to be stuck in diagnostic mode as soon as the router is reloaded

Core Issue

While the VG248 is upgraded to version vgc-main-1-3-1ES8-2.tar and the router is reloaded, the router becomes stuck in diagnostic mode.

The issue is caused by a corrupt software image being upgraded.

Resolution

In order to resolve the issue, perform these steps:

  1. Download the VG248 software image again from Software Download:Cisco VG248 Analog Telephone Gateway

  2. FTP the file to VG248 using binary mode.

  3. Confirm that the file size is correct.

  4. Reload the VG248.
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