Hi, little step forward.
I manually pull configuration (full) on switch with full interfaces list and get this:
So I losted all interfaces.
After few hours of manually polling status/configuration and trying everythink I know how to get interface from this switch.
I have to do: Configuration poll -> set again SNMP password/community on switch -> Configuration poll.
Please notice that in second poll there is not a 'Checking SNMP':
After this second poll the SNMP communication works without reset password. One more Configuration poll and SNMP is gone.
What's more.
If I do: Configuration poll -> set again SNMP password/community on switch -> Status poll (this work OK) -> Configuration poll, it wouldn't works and SNMP will be lost.
For now I can't see any difference between check or uncheck 'Prevent automatic SNMP configuration change' box.
Please let me know if I can provide more test to find a solution.
				
			I manually pull configuration (full) on switch with full interfaces list and get this:
Code Select 
[20.11.2019 12:34:58] **** Poll request sent to server ****
[20.11.2019 12:34:58] Poll request accepted
[20.11.2019 12:34:58] Starting configuration poll for node 10.6.1.224
[20.11.2019 12:34:58] Capability reset
[20.11.2019 12:34:58] Checking node's capabilities...
[20.11.2019 12:34:58]    Checking SNMP...
[20.11.2019 12:34:58]    SNMP agent is active (version 3)
[20.11.2019 12:34:59]    System description changed to NETGEAR 24-Port Gigabit PoE+ Smart Managed Pro Switch with 4 SFP Ports (GS728TPv2), Software Version 6.0.1.14, Boot Version 1.0.0.5
[20.11.2019 12:34:59]    System name changed to SSD-Sosnowiec1
[20.11.2019 12:34:59]    System contact changed to 
[20.11.2019 12:34:59]    System location changed to 
[20.11.2019 12:35:41] Capability check finished
[20.11.2019 12:35:41] Checking interface configuration...
[20.11.2019 12:35:50] Unable to get interface list from node
[20.11.2019 12:35:50]    Interface "testcc (GigabitEthernet1)" is no longer exist
[20.11.2019 12:35:50]    Interface "GigabitEthernet2" is no longer exist
[20.11.2019 12:35:50]    Interface "test3cc (GigabitEthernet3)" is no longer exist
[20.11.2019 12:35:50]    Interface "GigabitEthernet4" is no longer exist
[20.11.2019 12:35:50]    Interface "test5cc8 (GigabitEthernet5)" is no longer exist
[20.11.2019 12:35:50]    Interface "GigabitEthernet6" is no longer exist
[20.11.2019 12:35:50]    Interface "test7c (GigabitEthernet7)" is no longer exist
[20.11.2019 12:35:50]    Interface "GigabitEthernet8" is no longer exist
[20.11.2019 12:35:50]    Interface "GigabitEthernet9" is no longer exist
[20.11.2019 12:35:50]    Interface "GigabitEthernet10" is no longer exist
[20.11.2019 12:35:50]    Interface "GigabitEthernet11" is no longer exist
[20.11.2019 12:35:50]    Interface "GigabitEthernet12" is no longer exist
[20.11.2019 12:35:50]    Interface "GigabitEthernet13" is no longer exist
[20.11.2019 12:35:50]    Interface "GigabitEthernet14" is no longer exist
[20.11.2019 12:35:50]    Interface "GigabitEthernet15" is no longer exist
[20.11.2019 12:35:50]    Interface "GigabitEthernet16" is no longer exist
[20.11.2019 12:35:50]    Interface "GigabitEthernet17" is no longer exist
[20.11.2019 12:35:50]    Interface "GigabitEthernet18" is no longer exist
[20.11.2019 12:35:50]    Interface "GigabitEthernet19" is no longer exist
[20.11.2019 12:35:50]    Interface "GigabitEthernet20" is no longer exist
[20.11.2019 12:35:50]    Interface "GigabitEthernet21" is no longer exist
[20.11.2019 12:35:50]    Interface "GigabitEthernet22" is no longer exist
[20.11.2019 12:35:50]    Interface "GigabitEthernet23" is no longer exist
[20.11.2019 12:35:50]    Interface "GigabitEthernet24" is no longer exist
[20.11.2019 12:35:50]    Interface "GigabitEthernet25" is no longer exist
[20.11.2019 12:35:50]    Interface "GigabitEthernet26" is no longer exist
[20.11.2019 12:35:50]    Interface "GigabitEthernet27" is no longer exist
[20.11.2019 12:35:50]    Interface "GigabitEthernet28" is no longer exist
[20.11.2019 12:35:50]    Interface "LAG1" is no longer exist
[20.11.2019 12:35:50]    Interface "LAG2" is no longer exist
[20.11.2019 12:35:50]    Interface "LAG3" is no longer exist
[20.11.2019 12:35:50]    Interface "LAG4" is no longer exist
[20.11.2019 12:35:50]    Interface "LAG5" is no longer exist
[20.11.2019 12:35:50]    Interface "LAG6" is no longer exist
[20.11.2019 12:35:50]    Interface "LAG7" is no longer exist
[20.11.2019 12:35:50]    Interface "LAG8" is no longer exist
[20.11.2019 12:35:50]    Interface "LAG9" is no longer exist
[20.11.2019 12:35:50]    Interface "LAG10" is no longer exist
[20.11.2019 12:35:50]    Interface "LAG11" is no longer exist
[20.11.2019 12:35:50]    Interface "LAG12" is no longer exist
[20.11.2019 12:35:50]    Interface "LAG13" is no longer exist
[20.11.2019 12:35:50]    Interface "LAG14" is no longer exist
[20.11.2019 12:35:50]    Interface "LAG15" is no longer exist
[20.11.2019 12:35:50]    Interface "LAG16" is no longer exist
[20.11.2019 12:35:50] Interface configuration check finished
[20.11.2019 12:35:50] Checking node name
[20.11.2019 12:35:50] Node name is an IP address and need to be resolved
[20.11.2019 12:35:54] Node name cannot be resolved
[20.11.2019 12:35:55] Finished configuration poll for node 10.6.1.224
[20.11.2019 12:35:55] Node configuration was changed after poll
[20.11.2019 12:35:55] **** Poll completed successfully ****So I losted all interfaces.
After few hours of manually polling status/configuration and trying everythink I know how to get interface from this switch.
I have to do: Configuration poll -> set again SNMP password/community on switch -> Configuration poll.
Please notice that in second poll there is not a 'Checking SNMP':
Code Select 
[20.11.2019 14:22:21] **** Poll request sent to server ****
[20.11.2019 14:22:22] Poll request accepted
[20.11.2019 14:22:22] Starting configuration poll for node 10.6.1.224
[20.11.2019 14:22:22] Checking node's capabilities...
[20.11.2019 14:22:22]    Checking SNMP...
[20.11.2019 14:22:22]    SNMP agent is active (version 2c)
[20.11.2019 14:23:04] Capability check finished
[20.11.2019 14:23:05] Checking interface configuration...
[20.11.2019 14:23:14] Unable to get interface list from node
[20.11.2019 14:23:14] Interface configuration check finished
[20.11.2019 14:23:14] Checking node name
[20.11.2019 14:23:14] Node name is an IP address and need to be resolved
[20.11.2019 14:23:18] Node name cannot be resolved
[20.11.2019 14:23:18] Finished configuration poll for node 10.6.1.224
[20.11.2019 14:23:18] Node configuration was not changed after poll
[20.11.2019 14:23:18] **** Poll completed successfully ****
[20.11.2019 14:24:25] **** Poll request sent to server ****
[20.11.2019 14:24:25] Poll request accepted
[20.11.2019 14:24:25] Starting configuration poll for node 10.6.1.224
[20.11.2019 14:24:25] Checking node's capabilities...
[20.11.2019 14:24:25] Capability check finished
[20.11.2019 14:24:25] Checking interface configuration...
[20.11.2019 14:24:42]    IP address 10.6.1.224 removed from interface "testcc (GigabitEthernet1)"
[20.11.2019 14:24:42]    IP address 127.0.0.1 added to interface "testcc (GigabitEthernet1)"
[20.11.2019 14:24:42]    Found new interface "GigabitEthernet2"
[20.11.2019 14:24:42]    Found new interface "aa23 (GigabitEthernet3)"
[20.11.2019 14:24:42]    Found new interface "aa24 (GigabitEthernet4)"
[20.11.2019 14:24:42]    Found new interface "aa25 (GigabitEthernet5)"
[20.11.2019 14:24:42]    Found new interface "aa26 (GigabitEthernet6)"
[20.11.2019 14:24:42]    Found new interface "test7c (GigabitEthernet7)"
[20.11.2019 14:24:42]    Found new interface "GigabitEthernet8"
[20.11.2019 14:24:42]    Found new interface "GigabitEthernet9"
[20.11.2019 14:24:42]    Found new interface "GigabitEthernet10"
[20.11.2019 14:24:42]    Found new interface "GigabitEthernet11"
[20.11.2019 14:24:42]    Found new interface "GigabitEthernet12"
[20.11.2019 14:24:42]    Found new interface "GigabitEthernet13"
[20.11.2019 14:24:42]    Found new interface "GigabitEthernet14"
[20.11.2019 14:24:42]    Found new interface "GigabitEthernet15"
[20.11.2019 14:24:42]    Found new interface "GigabitEthernet16"
[20.11.2019 14:24:42]    Found new interface "GigabitEthernet17"
[20.11.2019 14:24:42]    Found new interface "GigabitEthernet18"
[20.11.2019 14:24:42]    Found new interface "GigabitEthernet19"
[20.11.2019 14:24:42]    Found new interface "GigabitEthernet20"
[20.11.2019 14:24:43]    Found new interface "GigabitEthernet21"
[20.11.2019 14:24:43]    Found new interface "GigabitEthernet22"
[20.11.2019 14:24:43]    Found new interface "GigabitEthernet23"
[20.11.2019 14:24:43]    Found new interface "GigabitEthernet24"
[20.11.2019 14:24:43]    Found new interface "GigabitEthernet25"
[20.11.2019 14:24:43]    Found new interface "GigabitEthernet26"
[20.11.2019 14:24:43]    Found new interface "GigabitEthernet27"
[20.11.2019 14:24:43]    Found new interface "GigabitEthernet28"
[20.11.2019 14:24:43]    Found new interface "LAG1"
[20.11.2019 14:24:43]    Found new interface "LAG2"
[20.11.2019 14:24:43]    Found new interface "LAG3"
[20.11.2019 14:24:43]    Found new interface "LAG4"
[20.11.2019 14:24:43]    Found new interface "LAG5"
[20.11.2019 14:24:43]    Found new interface "LAG6"
[20.11.2019 14:24:43]    Found new interface "LAG7"
[20.11.2019 14:24:43]    Found new interface "LAG8"
[20.11.2019 14:24:43]    Found new interface "LAG9"
[20.11.2019 14:24:43]    Found new interface "LAG10"
[20.11.2019 14:24:43]    Found new interface "LAG11"
[20.11.2019 14:24:43]    Found new interface "LAG12"
[20.11.2019 14:24:43]    Found new interface "LAG13"
[20.11.2019 14:24:43]    Found new interface "LAG14"
[20.11.2019 14:24:44]    Found new interface "LAG15"
[20.11.2019 14:24:44]    Found new interface "LAG16"
[20.11.2019 14:24:44] Interface configuration check finished
[20.11.2019 14:24:44] Checking node name
[20.11.2019 14:24:44] Node name is an IP address and need to be resolved
[20.11.2019 14:24:44] Node name cannot be resolved
[20.11.2019 14:24:44] Finished configuration poll for node 10.6.1.224
[20.11.2019 14:24:44] Node configuration was changed after poll
[20.11.2019 14:24:44] **** Poll completed successfully ****After this second poll the SNMP communication works without reset password. One more Configuration poll and SNMP is gone.
What's more.
If I do: Configuration poll -> set again SNMP password/community on switch -> Status poll (this work OK) -> Configuration poll, it wouldn't works and SNMP will be lost.
For now I can't see any difference between check or uncheck 'Prevent automatic SNMP configuration change' box.
Please let me know if I can provide more test to find a solution.
