Hi All, I've been testing a transparent upgrade from 5.1.8 to 5.2.9. (only handful of clients) We're a windows 10 site, 1909 + So far so good however I have come across a client that refuses to update. the device prompted the update and informed the user of the process, client restarted and reconnected but stayed on 5.1.8. Looking at the PanGPS log I can see this just after upgrade start (T10172)Info ( 501): 01/12/22 13:19:33:320 msgtype = software-upgrade (T10172)Info ( 608): 01/12/22 13:19:33:320 #### updater started, command is C:\Users\********\AppData\Local\Temp\_temp20292.msi (T10172)Debug( 39): 01/12/22 13:19:33:320 try verify file C:\Users\********\AppData\Local\Temp\_temp20292.msi (T10172)Error( 165): 01/12/22 13:19:33:391 The file C:\Users\********\AppData\Local\Temp\_temp20292.msi is not signed or corrupted (T10172)Error( 638): 01/12/22 13:19:33:391 file did not signed by us, return now In the short term this is ok as its reverted and allowed the older version 5.1.8. to continue to work but I'd like to understand the exact issue/cause. I don't want to roll out to 1500 clients and find half don't want to update even if they do continue to work on the older version. I have found an article here https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA14u000000HBW9CAO&lang=en_US%E2%80%A9 that specifies a dns related issue but I know the portal fqdn is purely one IP address. There is no different internal address. That article explains multiple reasons for this error but I can't find proof of any other reasons? One thing I'm also concerned with is the client hasn't tried to upgrade again since? the portal app config specifies a config refresh interval of 1 hour so I would've hoped it would try updating again? What other reasons would cause this behaviour and why isn't it trying to update the client on reconnect? Thanks Ian
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