# Cm data failing to connect
**URL:** https://mangoh.discourse.group/t/cm-data-failing-to-connect/1419
**Category:** mangOH Green
**Created:** [May 15, 2018, 7:53pm UTC](https://mangoh.discourse.group/t/cm-data-failing-to-connect/1419 "2018-05-15T19:53:29Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@hposhtiw](https://mangoh.discourse.group/u/hposhtiw)
#### Post date: [May 15, 2018, 7:53pm UTC](https://mangoh.discourse.group/t/cm-data-failing-to-connect/1419/1 "2018-05-15T19:53:29Z")
I had WP7603-1 connected until last night.
Now, it is not connecting.
Here is the information.
root@swi-mdm9x28:~# cm data
Index: 1
APN: NXTGENPHONE
PDP Type: IPV4V6
Connected: yes
Interface: rmnet\_data0
Family: inet
IP: 10.119.28.117
Gateway: 10.119.28.118
Dns1: 172.26.38.1
Dns2: N/A
root@swi-mdm9x28:~# cm data connect
Checking if device is up … ok
Routing … ok
Updating /etc/resolv.conf … ok
Testing connection … failed
root@swi-mdm9x28:~#
I don’t know if DNS2 is the issue? I thought I saw entry there earlier but now it is disappeared. How do I fix this?
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### Author:  [@christopheradams1](https://mangoh.discourse.group/u/christopheradams1)
#### Post date: [August 25, 2020, 7:29pm UTC](https://mangoh.discourse.group/t/cm-data-failing-to-connect/1419/2 "2020-08-25T19:29:42Z")
My wp7702 is having this problem also, is anyone going to help???
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### Author:  [@jyijyi](https://mangoh.discourse.group/u/jyijyi)
#### Post date: [August 25, 2020, 11:45pm UTC](https://mangoh.discourse.group/t/cm-data-failing-to-connect/1419/3 "2020-08-25T23:45:19Z")
Maybe just the connection testing has problem
> **[\[WP7605\]\[cm\] No return after "Testing connection.." message](https://forum.legato.io/t/wp7605-cm-no-return-after-testing-connection-message/5281/2)**
>
> https://docs.legato.io/latest/toolsTarget\_cm.html Cm tool is just for testing purpose. Not recommend to be used in final product. If it can establish connection, then it is ok.