# RC7620-1 +KFTPRCV Does not receive "CONNECT"

**URL:** <https://forum.sierrawireless.com/t/rc7620-1-kftprcv-does-not-receive-connect/25290>\
**Category:** RC76\
**Created:** [October 22, 2021, 4:17pm UTC](https://forum.sierrawireless.com/t/rc7620-1-kftprcv-does-not-receive-connect/25290 "2021-10-22T16:17:04Z")\
**Posts on this page:** 12\
**Page:** 1

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**Author:** ![mt\_0x](https://avatars.discourse-cdn.com/v4/letter/m/278dde/32.png) [@mt\_0x](https://forum.sierrawireless.com/u/mt_0x)\
**Post date:** [October 22, 2021, 4:17pm UTC](https://forum.sierrawireless.com/t/rc7620-1-kftprcv-does-not-receive-connect/25290/1 "2021-10-22T16:17:04Z")

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Hi,  
We are trying to download a file from FTP using AT+KTCPRCV on RC7620-1 (SWI9X07H\_00.08.07.00 0ce4c1 jenkins 2021/03/17 02:18:20)  
After AT+KFTPCFG, we issue AT+KTCPRCV=1,255 and the data start coming down but no “CONNECT” is received before.

According to “AirPrime - RC76xx - AT Command Reference Guide - Rev9.0.pdf” Page 276 a “CONNECT” or “NO CARRIER” should be sent by the module

best regards

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**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\
**Post date:** [October 22, 2021, 5:04pm UTC](https://forum.sierrawireless.com/t/rc7620-1-kftprcv-does-not-receive-connect/25290/2 "2021-10-22T17:04:47Z")

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no problem is found, you can see my command:  
[log (2).txt](https://forum.sierrawireless.com/uploads/short-url/5U71wuvMmW7fwjcoIUzjE3GRdhc.txt) (42.7 KB)

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<div class="post-metadata">

**Author:** ![mt\_0x](https://avatars.discourse-cdn.com/v4/letter/m/278dde/32.png) [@mt\_0x](https://forum.sierrawireless.com/u/mt_0x)\
**Post date:** [October 22, 2021, 9:25pm UTC](https://forum.sierrawireless.com/t/rc7620-1-kftprcv-does-not-receive-connect/25290/3 "2021-10-22T21:25:57Z")

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Are you trying over UART or USB interface? I’m on UART

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**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\
**Post date:** [October 23, 2021, 2:11am UTC](https://forum.sierrawireless.com/t/rc7620-1-kftprcv-does-not-receive-connect/25290/4 "2021-10-23T02:11:20Z")

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I am using uart too …

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<div class="post-metadata">

**Author:** ![mt\_0x](https://avatars.discourse-cdn.com/v4/letter/m/278dde/32.png) [@mt\_0x](https://forum.sierrawireless.com/u/mt_0x)\
**Post date:** [October 25, 2021, 9:33am UTC](https://forum.sierrawireless.com/t/rc7620-1-kftprcv-does-not-receive-connect/25290/5 "2021-10-25T09:33:09Z")

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Thanks, I’ve done some more tests and I can confirm at 115200 baud it works fine, but at 230400 baud doesn’t.  
jyijyi can you confirm?

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**Author:** ![mt\_0x](https://avatars.discourse-cdn.com/v4/letter/m/278dde/32.png) [@mt\_0x](https://forum.sierrawireless.com/u/mt_0x)\
**Post date:** [October 28, 2021, 2:26pm UTC](https://forum.sierrawireless.com/t/rc7620-1-kftprcv-does-not-receive-connect/25290/6 "2021-10-28T14:26:10Z")

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> [@mt\_0x](#):
>

KFTP & KTCP send/receive commands works fine only at 115200 baud on UART interface.  
Can anyone confirm this is a issue?

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**Author:** ![help9help](https://avatars.discourse-cdn.com/v4/letter/h/ba9def/32.png) [@help9help](https://forum.sierrawireless.com/u/help9help)\
**Post date:** [January 16, 2022, 8:38pm UTC](https://forum.sierrawireless.com/t/rc7620-1-kftprcv-does-not-receive-connect/25290/7 "2022-01-16T20:38:33Z")

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Yes, I have the same issue with my RC7620 modules - the TCP stack works only at the rate of 115200. Does anyone have the solution?

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<div class="post-metadata">

**Author:** ![mt\_0x](https://avatars.discourse-cdn.com/v4/letter/m/278dde/32.png) [@mt\_0x](https://forum.sierrawireless.com/u/mt_0x)\
**Post date:** [January 11, 2023, 12:35pm UTC](https://forum.sierrawireless.com/t/rc7620-1-kftprcv-does-not-receive-connect/25290/8 "2023-01-11T12:35:01Z")

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> [@mt\_0x](#):
>
> SWI9X07H\_00.08.07.00

Is this issue fixed with release 9? @jyijyi @help9help

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**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\
**Post date:** [January 11, 2023, 2:54pm UTC](https://forum.sierrawireless.com/t/rc7620-1-kftprcv-does-not-receive-connect/25290/9 "2023-01-11T14:54:46Z")

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Do you mean you see this issue in your testing in r9?

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<div class="post-metadata">

**Author:** ![mt\_0x](https://avatars.discourse-cdn.com/v4/letter/m/278dde/32.png) [@mt\_0x](https://forum.sierrawireless.com/u/mt_0x)\
**Post date:** [January 11, 2023, 3:29pm UTC](https://forum.sierrawireless.com/t/rc7620-1-kftprcv-does-not-receive-connect/25290/10 "2023-01-11T15:29:46Z")

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No, I didn’t give it a try yet. I was only asking if there is some news regarding this issue before try to update a module and testing

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<div class="post-metadata">

**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\
**Post date:** [January 11, 2023, 3:42pm UTC](https://forum.sierrawireless.com/t/rc7620-1-kftprcv-does-not-receive-connect/25290/11 "2023-01-11T15:42:16Z")

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better test with your hardware and network environment first

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<div class="post-metadata">

**Author:** ![mt\_0x](https://avatars.discourse-cdn.com/v4/letter/m/278dde/32.png) [@mt\_0x](https://forum.sierrawireless.com/u/mt_0x)\
**Post date:** [January 19, 2023, 4:46pm UTC](https://forum.sierrawireless.com/t/rc7620-1-kftprcv-does-not-receive-connect/25290/12 "2023-01-19T16:46:42Z")

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Fixed in release 9 🙂
