Ubiquiti issue

[mmerry]

Can't explain it, but wondering if anyone can. Dream Machine SE suddenly started dropping packets on the WAN interface. No updates were done at that time, in fact no updates for a few weeks. Plugged into a Cyberpower PR1000LCD USP so should not be power issues.

ISP rolled a truck and verified the connection was fine. Rebooted the entire internal network, and still dropping packets. All network equipment is up to date with software and firmware, and verified to have no loops. Reset the DMSE to factory defaults and restored a config from 10 days ago and now all is fine.

I can't explain what happened as the logs show nothing. Just wondering if anyone else has experienced it?

 

[YeOldeStonecat]

What is the ISP CPE?
Is it properly "bridge" or in "bypass mode"...so the public IP hits the DMs WAN interface? Or is it still running as a gateway...thus double NAT?

What model ISP CPE?
Replace the patch cable between it and the DM?

I do recall a few years ago, working with an ISP common in the area of our main office (Breezeline)....there was a customer that had a similar issue...basically connectivity issues 'tween the WAN of the (back then) USG3P....and the cable modem (not gateway...just a pure modem). The tech did state that he was aware of firmware issues with that particular model modem with a certain firmware version......would flap a lot with auto negotiation. He replaced that modem with a different model...and all was good again.

 

[mmerry]

It is fiber, the ONT was replaced about a year ago. Did the basic troubleshooting like take computer and connect directly to ONT, used the same cable as the DM and worked and pings were fine. Tech that came ran ping test for 15 minutes with no drop. I know ping is not the best test but I was getting ping failures from both machines on the network and the DM itself. I am at a loss. The system has been up and solid with no drops for 36 hours now with the rebuild. I am still under the idea that the ISP triggered something that cause the DM to loose it's mind.

 

[YeOldeStonecat]

Ahh yes....fiber with ONT..I've seen a few people mention issues with that in some tech forums. I've not had to deal with that setup much at all.