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Upgrade 1120e phones on IPO 9.0.4.

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blakob

blakob

Vendor
Feb 5, 2009
4
US
Phones currently have SIP firmware, 04.03.18.00. They try to install SIP firmware 04.04.14.00 but receive an Authentication error. If I default the phone via the MAC address code, the phone will upgrade correctly.

Any suggestions as to why normal upgrade fails?
 
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