Yes sorry .160 was a typo....it's .168. I have to use 192.168.0.xxx for this particular LAN wether I like it or not. Long story.
I'm aware that they *should not* revert to their default management IP after a power-down for a longer than a day period of time, but mine are doing it, and it's leaving me curious that they're picking up something happening on the LAN the live on that's convincing them that they *should* drop their IP back to default, or if I've found some kind of firmware issue.
I discovered this issue after deploying two switches late last year, and adding a third switch in the recent past month. After I figured it out and reconfigured the original two switches as well as added the third, I bench tested a "configure-->save-->verify operation-->power down-->wait-->power up-->reconnect" cycle a few times, and the switches remembered their management IP as desired.
Then the facility was shut down for about 10 days, and we thought nothing of it assuming all would be well. Then came the need to log in to one switch and configure something, and boom.....all three are "unreachable" again, meaning they're probably all back to 0.1, and I'll have to unplug all three, and bring one up at a time to re-configure.
Any other ideas, I'm all ears!
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William McLachlan
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Original Message:
Sent: 06-05-2021 03:34 PM
From: Valentin Voica
Subject: multiple 1930 switches forget the management IP number after power-off for >1 days?
Are you using the Aruba Instant On portal, or Local Management to manage the switches?
If you use the Aruba Instant On portal, I assume you set a static IP address in the Connectivity tab, similar to the below:
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Valentin Voica
Original Message:
Sent: 06-04-2021 01:56 PM
From: William McLachlan
Subject: multiple 1930 switches forget the management IP number after power-off for >1 days?
I have an installation using 3 1930 switches (and more coming in the near future) that is powered up for use full time for stretches of days or weeks, then powered fully down for short stretches of days or up to a week. More than once now I've had ALL the 1930 switches forget the management IP number I've set after a period of power-down, and drop back to 192.160.0.1. Other settings don't seem to be forgotten as I've found the switches largely still configured once I unplug them all and go thru them one at a time and log in...because of course all three switches coming on the network with a management IP of .0.1 means I can't connect to *any* of them until they're isolated in turn and reconfigured.
I've ensured that the units are NOT looking for a DHCP address from any server, and simply want them to remain set to listen for management connections on specific IP numbers, and I can't seem to get them to do that.
I see this issue discussed a time or two in the communities but haven't seen a solution mentioned, if there even is one. All three switches are up to date on software as of about 2 months ago, but I've observed this problem since about late November 2020 when we started installing them. None of the switches are more than 6 to 8 months old, meaning I don't think this is related to backup onboard batteries or anything like that. Most notably, the switches appear to remain as configured (except for the management IP), and continue functioning and serving network clients correctly.
Any pointers to more information or solutions welcomed.
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William McLachlan
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