I tested this today and installed RU1 one more time.
I made the "SEP Network Security" Inactive from the macOS System Preferences - Network, then made an incremental Time Machine backup and after this Verify Backups. It worked fine. SEP keeps on nagging about not being protected, but that's ok in this test.
A-P
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Product Development Manager
Caverion Suomi Oy
Finland
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Original Message:
Sent: 12-08-2020 12:57 PM
From: Michael Reid
Subject: Time Machine backups and Symantec Endpoint 14.3 RU1
Good point! I believe that disabling the network filter is a good experiment to try and if someone wants to try it and report back that would be great. Not willing to loose all my backups again though.
Original Message:
Sent: 12-08-2020 10:48 AM
From: Unknown User
Subject: Time Machine backups and Symantec Endpoint 14.3 RU1
Hi,
Good to know the local backups are not affected. I will need to try this with my 2 TB Samsung X5 Thunderbolt 3 SSD. This one should finish the backups pretty fast :).
I wonder if the network backups would work if disabling the network filter.
A-P
Original Message:
Sent: 12-08-2020 09:23 AM
From: Michael Reid
Subject: Time Machine backups and Symantec Endpoint 14.3 RU1
Hey A-P,
Yes, just saw your post. Glad to see that I'm not the only one with this issue. I do tend to believe it's something with the new network filter component (that you see in System Preferences > Network) since a backup to USB-attached storage has no issues. Hopefully they will be able to get this sorted out with a maintenance release.
Regards,
Michael
Original Message:
Sent: 12-08-2020 09:04 AM
From: Unknown User
Subject: Time Machine backups and Symantec Endpoint 14.3 RU1
Michael,
I seem to have reported exactly the same behaviour at the same time! Look at the other thread :).
A-P
Original Message:
Sent: 12-08-2020 06:17 AM
From: Michael Reid
Subject: Time Machine backups and Symantec Endpoint 14.3 RU1
I recently upgraded my Endpoint Protection 14.3 MP1 (14.3.1169.0100) to 14.3 RU1 (14.3.3384.1000) on macOS 10.15.7. Following this I saw somewhat faster boot times but my Time Machine backups to my network backup disk (NAS) started failing.
It first reported that the backup needed to start a new backup following a failed verification. I said okay, perhaps I corrupted it while installing Endpoint Protection with its new network monitor. I then did an entirely new backup and after several hours it completed. For the first backup after the initial seed it once again reported a failed verification. I then manually purged all remnants of the backup on my NAS and tried again but had the same issue with failed verifications. I plugged in an external drive and did a new backup and that was successful and took additional snapshots without error. I then tried a wired connection to the NAS but same problem resurfaced in getting a stable backup. Only after uninstalling Endpoint Protection was I able to get backups to my NAS going again.
Other observations included what seemed like higher CPU load from the 'com.broadcom.mes.systemextension' during backups on 14.3 RU1.
While I appreciate not running a kernel extension with the new 14.3 RU1, I can only conclude that there is something wrong with network-based backups with the new Symantec Endpoint Protection. I've since gone back to the previous version and backups are once again proceeding normally (along with normal levels of CPU load).
Any others have come across this scenario?