ER 5120 not working fiber optic dynamic ip

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ER 5120 not working fiber optic dynamic ip

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ER 5120 not working fiber optic dynamic ip
ER 5120 not working fiber optic dynamic ip
2017-02-28 15:48:45 - last edited 2021-08-21 06:19:03
Model :

Hardware Version :

Firmware Version :

ISP :

I have ER 5120 working for 6 months, than it stop no internet
I have fiber optic internet from their box (Alcatel Lucent) which gives me one feed of dynamic ip, 50/5 Mbps that goes to the er 5120 WAN (only using 1 WAN)
I have set up LAN 2,3,4,5 with rate control, under Network>switch>Rate Control, I have setup ingress and engress limits for each LAN
I am using 3 desktops, wifi , time clock
It was working fine for 6 months and stop, I called ISP they said i have too many devices and they reset the feed and working fine for 30min and stop no internet
If I connect the feed to my laptop it work fine than reconnect to er 5120 WAN no conductivity. I have unplug the ISP box waited reconnect, to WAN, no internet, but if take the ISP feed t my laptop it works
Help I am pulling my hair out
Thanks in advance

Neal da
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Re:ER 5120 not working fiber optic dynamic ip
2017-03-03 09:52:07 - last edited 2021-08-21 06:19:03
Hey dude
What's the WAN state of the ER5120 shows? Can the WAN1 get IP from ISP?
If not, there must be some configuration wrong about the setting in WAN.
Like check the MTU, have a reset...
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Re:ER 5120 not working fiber optic dynamic ip
2017-03-04 00:46:43 - last edited 2021-08-21 06:19:03
I powered the ER 5120 and everything is working, all parameters are the same as before, no problems.
WAN showing ip MTU 1500, working for 3 hours
Thank you for the post and I know what to do next time
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Re:ER 5120 not working fiber optic dynamic ip
2017-05-01 19:44:34 - last edited 2021-08-21 06:19:03
since my last post, internet speed is slow at random. I called ISP they say its good on their said.
lost ????
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