# Unable to connect to AT Command ComPort in Windows 10 for FX30 **URL:** \ **Category:** FX30\ **Created:** [September 10, 2018, 1:12pm UTC](https://forum.sierrawireless.com/t/unable-to-connect-to-at-command-comport-in-windows-10-for-fx30/13793 "2018-09-10T13:12:33Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![guruk](https://avatars.discourse-cdn.com/v4/letter/g/a8b319/32.png) [@guruk](https://forum.sierrawireless.com/u/guruk)\ **Post date:** [September 10, 2018, 1:12pm UTC](https://forum.sierrawireless.com/t/unable-to-connect-to-at-command-comport-in-windows-10-for-fx30/13793/1 "2018-09-10T13:12:33Z")
Hi, I am new to Sierra Wireless FX30S ( serial port ). I had installed generic windows driver from sierra website into my windows 10 laptop. I can see Sierra Wireless AT Command port (Com10). FX30 is powered up with its standard cable and USB B micro is connected to usb port, SIM card is inserted in SIM slot. I am trying to connect using putty(serial connection) and not able to connect to AT / Sierra Wireless FX30 to access AT Command. I tried using 9600/38400/11500 / 8 N 1 baud rate, party stop bit. None was successful. Your support in this is very appreciative. Kindly let me know if there is some thing that i am missing here. ---
**Author:** ![bbo](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/bbo/32/3905_2.png) [@bbo](https://forum.sierrawireless.com/u/bbo)\ **Post date:** [September 13, 2018, 5:19am UTC](https://forum.sierrawireless.com/t/unable-to-connect-to-at-command-comport-in-windows-10-for-fx30/13793/2 "2018-09-13T05:19:57Z")
Hi @Guruk, I would advise you to start by having a look to the FX30S User Guide where this topic is addressed: [https://source.sierrawireless.com/resources/airlink/hardware\_reference\_docs/airlink\_fx30s\_hw\_user\_guide/](https://source.sierrawireless.com/resources/airlink/hardware_reference_docs/airlink_fx30s_hw_user_guide/) By default FX30S RS232 interface is not set for AT command. However, it is possible to configure it for this purpose: On the **Sierra Wireless AT command Port** : > ``` > at!mapuart? > > !MAPUART: 17,17 > > OK > > at!mapuart=1,1 > > OK > > at!reset > > OK > > ``` Wait for the modem to reset. > ``` > at!mapuart? > > !MAPUART: 1,17 > > OK > > ``` At this stage, you’ll be able to send AT commands on the UART @ 115200 bps To restore initial config use _AT!MAPUART=17,1_ Please note that PPP Dial-up is not supported opn this product. Hope it helps, ---
**Author:** ![guruk](https://avatars.discourse-cdn.com/v4/letter/g/a8b319/32.png) [@guruk](https://forum.sierrawireless.com/u/guruk)\ **Post date:** [September 14, 2018, 12:19pm UTC](https://forum.sierrawireless.com/t/unable-to-connect-to-at-command-comport-in-windows-10-for-fx30/13793/3 "2018-09-14T12:19:48Z")
> [@bbo](#): > > PPP Dial-up is not supported opn this product. Hi Bbo, We are now able to connect through AT terminal but we observe PS:Not attached and Mode:Low Power Mode .Please check below AT!GSTATUS? !GSTATUS: Current Time: 3829 Temperature: 24 Bootup Time: 0 **Mode: LOW POWER MODE** System mode: TD-SCDMA **PS state: Not attached** TDS band: Unknown TDS channel: 0 **GMM (PS) state:NULL —** **MM (CS) state: NULL** NO IMSI TDS L1 State: L1M\_STOPPED TDS LAC: 0000 (0) TDS RRC State: DISCONNECTED TDS Cell ID: 00000000 (0) RxM RSSI C0: — RxD RSSI C0: — IMS Reg State: UNKNOWN IMS Mode: Not Support IMS Srv State: UNKNOWN SMS,UNKNOWN VoIP OK SIM is inserted and also we have configured the APN. Your help is highly appreciated. ---
**Author:** ![mlw](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/mlw/32/3706_2.png) [@mlw](https://forum.sierrawireless.com/u/mlw)\ **Post date:** [September 14, 2018, 12:38pm UTC](https://forum.sierrawireless.com/t/unable-to-connect-to-at-command-comport-in-windows-10-for-fx30/13793/4 "2018-09-14T12:38:23Z")
@guruk, If you send at!pcinfo? to the unit it wil tell you why it is in low power mode. You could also try sending at+cfun=1 to force it into full power. Regards Matt ---
**Author:** ![guruk](https://avatars.discourse-cdn.com/v4/letter/g/a8b319/32.png) [@guruk](https://forum.sierrawireless.com/u/guruk)\ **Post date:** [September 14, 2018, 12:41pm UTC](https://forum.sierrawireless.com/t/unable-to-connect-to-at-command-comport-in-windows-10-for-fx30/13793/5 "2018-09-14T12:41:25Z")
> [@mlw](#): > > at+cfun=1 @mlw, Thanks that worked. Now the GSM status is DEREGISTERED. PS state: Not attached Any idea? ---
**Author:** ![guruk](https://avatars.discourse-cdn.com/v4/letter/g/a8b319/32.png) [@guruk](https://forum.sierrawireless.com/u/guruk)\ **Post date:** [September 14, 2018, 1:37pm UTC](https://forum.sierrawireless.com/t/unable-to-connect-to-at-command-comport-in-windows-10-for-fx30/13793/6 "2018-09-14T13:37:53Z")
We are able to see GSM status is registered as below, at!gstatus? !GSTATUS: Current Time: 365 Temperature: 33 Bootup Time: 0 Mode: ONLINE System mode: WCDMA PS state: Attached WCDMA band: WCDMA 2100 WCDMA channel: 10757 GMM (PS) state:REGISTERED NORMAL SERVICE MM (CS) state: IDLE NORMAL SERVICE WCDMA L1 State:L1M\_DCH LAC: 14B6 (5302) RRC State: CELL\_DCH UTRAN Cell ID: 014D B814 (333 47124) RxM RSSI C0: -90 RxD RSSI C0: -106 RxM RSSI C1: -106 RxD RSSI C1: -106 IMS Reg State: UNKNOWN IMS Mode: Not Support IMS Srv State: UNKNOWN SMS,UNKNOWN VoIP OK **But cm data in SSH is showing no connection.Please refer below,** **root@fx30s:~# cm data** **Index: 1** **APN: [airtelgprs.com](http://airtelgprs.com)** **PDP Type: IPV4V6** **Connected: no** ---
**Author:** ![mlw](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/mlw/32/3706_2.png) [@mlw](https://forum.sierrawireless.com/u/mlw)\ **Post date:** [September 14, 2018, 1:56pm UTC](https://forum.sierrawireless.com/t/unable-to-connect-to-at-command-comport-in-windows-10-for-fx30/13793/7 "2018-09-14T13:56:32Z")
@guruk, That’s because you need to start the connection with the below command. `cm data connect&` The & is important so that it goes back to the command prompt once the connection is up (or else you have to start another SSH session with the unit. Regards Matt ---
**Author:** ![guruk](https://avatars.discourse-cdn.com/v4/letter/g/a8b319/32.png) [@guruk](https://forum.sierrawireless.com/u/guruk)\ **Post date:** [September 17, 2018, 7:06am UTC](https://forum.sierrawireless.com/t/unable-to-connect-to-at-command-comport-in-windows-10-for-fx30/13793/8 "2018-09-17T07:06:36Z")
> [@mlw](#): > > cm data connect& @mlw.It is working .Thanks for the support.