# Unable to attach mc 7304 on airtel network.

**URL:** <https://forum.sierrawireless.com/t/unable-to-attach-mc-7304-on-airtel-network/9020>\
**Category:** MC/EM Series\
**Created:** [January 31, 2017, 10:47am UTC](https://forum.sierrawireless.com/t/unable-to-attach-mc-7304-on-airtel-network/9020 "2017-01-31T10:47:26Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![prachi123](https://avatars.discourse-cdn.com/v4/letter/p/dfb087/32.png) [@prachi123](https://forum.sierrawireless.com/u/prachi123)\
**Post date:** [January 31, 2017, 10:47am UTC](https://forum.sierrawireless.com/t/unable-to-attach-mc-7304-on-airtel-network/9020/1 "2017-01-31T10:47:26Z")

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Hello  
I am using SIERRA WIRELESS 1400338 REV 2 with Sierra Wireless Airprime MC7304 PCI Express Mini Card , but unable to attach it over the airtel LTE network.  
Airtel offers 2300MHz TDD-LTE (band 40) and 1800MHz FDD-LTE (band 3)  
MC7304 is supporting all the technologies , hence LTE is there, and even band 3 is also supported by it, but still unable to attach it over the network.

Tried running AT command : AT!GSTATUS?  
where it was showing band 0 and showing no service.

 ![](https://us1.discourse-cdn.com/flex025/uploads/sierrawireless/original/2X/4/4672fd50344e6cf131502bda5cc9da184c7c8142.png)  

![](https://us1.discourse-cdn.com/flex025/uploads/sierrawireless/original/2X/6/6499679de3c3b39ddfc765aa5c852caa8c96ce68.png)

![](https://us1.discourse-cdn.com/flex025/uploads/sierrawireless/original/2X/4/4d8fa2200226a538508ba6039e4f183d28e06994.png)

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<div class="post-metadata">

**Author:** ![prachi123](https://avatars.discourse-cdn.com/v4/letter/p/dfb087/32.png) [@prachi123](https://forum.sierrawireless.com/u/prachi123)\
**Post date:** [January 31, 2017, 10:52am UTC](https://forum.sierrawireless.com/t/unable-to-attach-mc-7304-on-airtel-network/9020/2 "2017-01-31T10:52:58Z")

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MC 7304 is supporting all the given technologies.  
WCDMA  
GSM  
CDMA  
LTE

 ![](https://us1.discourse-cdn.com/flex025/uploads/sierrawireless/original/2X/4/4a213bb867fdb61f65d3edc231c2f6c6e8ad6d85.png)

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<div class="post-metadata">

**Author:** ![prachi123](https://avatars.discourse-cdn.com/v4/letter/p/dfb087/32.png) [@prachi123](https://forum.sierrawireless.com/u/prachi123)\
**Post date:** [January 31, 2017, 11:38am UTC](https://forum.sierrawireless.com/t/unable-to-attach-mc-7304-on-airtel-network/9020/3 "2017-01-31T11:38:18Z")

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Even i tried running qmicli command having version 1.4.0 with this chip.

sudo qmicli -d /dev/cdc-wdm1 --wds-start-network --verbose  
it always give callFailed.

But if i run the same command on my laptop attaching a dongle with it containing airtel 4g sim and with libqmi version  
1.4.0 it works perfectly and shows network started .  
[qmicli.txt](https://forum.sierrawireless.com/uploads/short-url/7XvzaqliDm8RSP4lQDUZl4o2JVU.txt) (6.19 KB)