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ER707-M2 + E3372h-153 usb modem connected, but offline

ER707-M2 + E3372h-153 usb modem connected, but offline

ER707-M2 + E3372h-153 usb modem connected, but offline
ER707-M2 + E3372h-153 usb modem connected, but offline
2025-06-10 21:31:30 - last edited 2025-06-11 01:58:16
Tags: #WAN Setup #USB Modem
Model: ER707-M2  
Hardware Version: V1
Firmware Version: 1.2.4 Build 20241031 Rel.78300

Hi,

 

I'm trying to add failover into my network. I do have old E3372h-153 laying around (so compatible one). It's "stick"/modem version. Modem is recognized. Pin is typed and accepted. IP is provided. But it's still offline. What am I doing wrong? USB modem is selected as WAN, Primary WAN is disconnected. Modem in PC is connecting with Network and providing internet. 

In omada network tools I can ping any website from gateway. But I can't ping anything from AP (all packets lost). I have no clue what to do next. Maybe you guys have some ideas. Thanks!

.

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1 Accepted Solution
Re:ER707-M2 + E3372h-153 usb modem connected, but offline-Solution
2025-06-11 01:57:04 - last edited 2025-06-11 01:58:16

  @tylmar 

tylmar wrote

Hi,

 

I'm trying to add failover into my network. I do have old E3372h-153 laying around (so compatible one). It's "stick"/modem version. Modem is recognized. Pin is typed and accepted. IP is provided. But it's still offline. What am I doing wrong? USB modem is selected as WAN, Primary WAN is disconnected. Modem in PC is connecting with Network and providing internet. 

In omada network tools I can ping any website from gateway. But I can't ping anything from AP (all packets lost). I have no clue what to do next. Maybe you guys have some ideas. Thanks!

.

You may refer to the doc: 

Common Questions About the Load Balancing, Link Backup(Failover) & Online Detection

Setting the Echo Server might fix this behavior. 

Recommended Solution
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Re:ER707-M2 + E3372h-153 usb modem connected, but offline-Solution
2025-06-11 01:57:04 - last edited 2025-06-11 01:58:16

  @tylmar 

tylmar wrote

Hi,

 

I'm trying to add failover into my network. I do have old E3372h-153 laying around (so compatible one). It's "stick"/modem version. Modem is recognized. Pin is typed and accepted. IP is provided. But it's still offline. What am I doing wrong? USB modem is selected as WAN, Primary WAN is disconnected. Modem in PC is connecting with Network and providing internet. 

In omada network tools I can ping any website from gateway. But I can't ping anything from AP (all packets lost). I have no clue what to do next. Maybe you guys have some ideas. Thanks!

.

You may refer to the doc: 

Common Questions About the Load Balancing, Link Backup(Failover) & Online Detection

Setting the Echo Server might fix this behavior. 

Recommended Solution
  1  
  1  
#2
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Re:ER707-M2 + E3372h-153 usb modem connected, but offline
2025-06-11 18:49:37

  @Clive_A Thanks for suggestion, but I found it before that. But looks like it's not connected to failover at all. When I use simple load balancing 1:1 with main WAN it is still connected, but offline. 

 

But I get interesting warning in logs:

Type: PPTP/L2TP Client Connection Failed

Log: [Failed]Gateway: ER707-M2 failed to connect to the server because LCP negotiation failed and the authentication request was rejected.

 

I have strange feeling it's related with my usb modem (E3372h-153). In theory it is supported. 

 

Quick question, I saw here on the forum that prefereble mode is "stick" one, the modem mode. But I saw on reddit that people are using those modems with Omada system in "router" mode (the one with IP). Was this "stick" suggestion just something old I read here? Maybe I should try with other mode. 

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