Home

Forums

Stories

Knowledge Base

Business Community > Routers > Strange partial network outage

< Routers

Strange partial network outage

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.

Strange partial network outage

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.

Eric2022

2023-02-12 18:29:37

Posts: 15

Helpful: 1

Solutions: 0

Stories: 0

Registered: 2022-03-29

Strange partial network outage

2023-02-12 18:29:37

Model: ER7206 (TL-ER7206)

Hardware Version: V1

Firmware Version: 1.2.3

I have encountered a strange issue with a Omada network I am managing. This problem occurs rarely.

Has anyone else seen this problem or have any idea why it is happening?

Network layout:

Provider’s router -> Omada ER7206 router -> Omada switch -> My laptop

Symptoms:

Ping from my laptop does not work for any domain
Omada cloud access does not connect
Accessing one website does not work, other websites I tried DO work
When connected to the provider’s router (bypassing the Omada network), everything works

What I tried:

Restart provider’s router -> no fix
Restart Omada router -> no fix
Disconnect & re-connect WAN from Omada panel (selected ER7206 in Omada devices list, go to WAN, click Disconnect, click Connect) -> FIX

4 Reply

Virgo

LV5

2023-02-14 08:01:25

Posts: 2588

Helpful: 346

Solutions: 191

Stories: 0

Registered: 2021-05-10

Re:Strange partial network outage

2023-02-14 08:01:25

@Eric2022

What is the version of your controller？

Ping from my laptop does not work for any domain

If you ping those IP address, can it ping through?

Just striving to develop myself while helping others.

Eric2022

LV1

2023-02-14 12:49:14

Posts: 15

Helpful: 1

Solutions: 0

Stories: 0

Registered: 2022-03-29

Re:Strange partial network outage

2023-02-14 12:49:14

@Virgo The controller is on 5.7.4.

It is just the ping protocol that stops working. DNS resolution works, so if I try to ping Google.com for example, it will get the IP address and try that but every ping will timeout. I can also go to the site in a browser. If I ping an IP directly, it does not work either.

KimcheeGUN

LV4

2023-02-14 13:18:06

Posts: 601

Helpful: 279

Solutions: 42

Stories: 0

Registered: 2022-07-05

Re:Strange partial network outage

2023-02-14 13:18:06

@Eric2022

Are you connected by DHCP on the WAN or PPPOE?

By chance have you confirmed that your client is getting handed DHCP properly? The DNS and Gateway being handed out to the client?

I can not teach anyone anything - I can only make them think - Socrates

Eric2022

LV1

2023-02-14 13:34:06

Posts: 15

Helpful: 1

Solutions: 0

Stories: 0

Registered: 2022-03-29

Re:Strange partial network outage

2023-02-14 13:34:06

@KimcheeGUN WAN connected by DHCP. The provider's router on the WAN side is configured to provide the ER7206 a static IP. I also rebooted both provider and ER7206 routers and that didn't help. It was only when I do to the Omada panel and disconnect / re-connected there that the problem went away. On the client side, I did not check DHCP specifically, but the client seemed to work correctly - I could go to websites and access the Omada portal.

Strange partial network outage

Strange partial network outage

Information

Voters 0

Tags