LB2120 and Ubiquiti EdgeMax - LAN resetting

Question

I have an LB2120 running the latest firmware connected to a Ubiquiti EdgeMax router running also the latest (1.9.7). When I place the LB2120 in bridge mode, the EdgeMax gets an IP and sets the default route then the LB2120's power LED briefly turns amber, then the LAN connection goes down. After a few seconds the LAN comes back up only to restart the cycle a few seconds later.

If I place the LB2120 in router mode and connect the EdgeMax, the LB2120 stays connected for a longer time, but after about 30 seconds the LAN connection goes down and the power LED shows a solid amber with the first two bar LEDs lit still showing the last signal. When I reconnect the LB2120 to a computer or access point, the LAN connection stays down and the power LED stays amber until I reset the LB2120.

When running EdgeMax firmware 1.7.1, I did not see this behavior, but I was forced to upgrade due to the /32 and default route issue.

- Mark.

mgandalf · Answer

I'm able to use it without issue directly connected to my laptop in both router and bridge mode. I also am able to use it in router mode directly connected to a Unifi access point. When connecting the EdgeMax router, however, the LAN interface on the LB2120 drops quickly.&nbsp;- Mark.

mgandalf · Answer

Anyone have any thoughts?&nbsp;Thanks, Mark.

JamesGL · Answer

Hi&nbsp;mgandalf,

&nbsp;

You have mentioned that issue did not occur when you have downgraded to previous firmware of your EdgeMax and it only happens with the latest firmware. Have you checked with Ubiquiti if there is a known issue with the latest firmware?

mgandalf · Answer

Yes, I have the question out to them as well.&nbsp;- Mark.

msausen · Answer

&nbsp; I'm having the exact same problem with a USG.&nbsp; Lan comes up, the connection is stable in bridge mode but as soon as the&nbsp;Netgear get's under a load (about 30 seconds) the power light on the 1120 blinks amber and the LAN&nbsp; connection resets.&nbsp; Newest firmware on the 1120 and current on the USG.&nbsp;Mark, do you have a link to a Ubiquiti thread or a case number I can reference if I call them?

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LB2120 and Ubiquiti EdgeMax - LAN resetting

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