Configuring NowSMS-Remote Direct Mode always display connecting error

Configuring NowSMS-Remote Direct Mode always display connecting error SearchSearch
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baiyang.sun
New member
Username: Sby1993

Post Number: 1
Registered: 06-2025
Posted on Thursday, June 26, 2025 - 06:53 am:   

hi,

We try to configur NowSMS GateWay SMSC with remote direct mode,but the android device is showing connecting/connecting error.

The detailed information is as below:

NowSMS PC :windows 8.1 server
IP addresee:192.168.1.2,connect to the router through the LAN prot

Android device:A15
IP addresee:192.168.1.100,
connect to the router via WLAN
Bryce Norwood - NowSMS Support
Board Administrator
Username: Bryce

Post Number: 8568
Registered: 10-2002
Posted on Thursday, June 26, 2025 - 05:13 pm:   

Some wifi routers have a "client isolation" mode that can be enabled, preventing TCP connections between local devices. Or there can also be an issue where the Wifi router is not bridged to the wired LAN, and performing its own NAT.

The first thing I would suggest trying is: From the android device, go to the Chrome web browser and try to connect to the web interface of NowSMS, which is on port 8800 by default (http://192.168.1.2:8800). If that doesn't work, then either the AP is configured for client isolation, or the Windows firewall is enabled. Connecting via the cloud is an alternative if the direct connection is not possible.

If the web interface is accessible via Chrome, then the "remote direct"/"direct connect" should work.

Regards,

Bryce Norwood
NowSMS Support
baiyang.sun
New member
Username: Sby1993

Post Number: 2
Registered: 06-2025
Posted on Friday, June 27, 2025 - 04:17 am:   

Hi Bryce,

Firstly,thank you for your reply!

Based on your suggestion, my test results are as follows:
1.The router is not configured with client isolation,we try to ping each other between PC(192.1681.2) and android device(192.168.1.3),the result is successful
2.We go to the Chrome web browser and try to connect to the web interface of NowSMS(http://192.168.1.2:8800),it works and displays NowSMS menu.
3.On the Android Device,configure the matching Device Name and Shared Secret,NowSMS Server IP is replaced with 192.168.1.2:8800,is it correct?
And the status is switching between connecting and authenticating.

Supplementary Information:
1.the wifi router is only connected throungh the LAN port,WAN port is empty(it means can not access external websites)

screenshotscreenshot2
Bryce Norwood - NowSMS Support
Board Administrator
Username: Bryce

Post Number: 8570
Registered: 10-2002
Posted on Friday, June 27, 2025 - 04:56 pm:   


quote:

3.On the Android Device,configure the matching Device Name and Shared Secret,NowSMS Server IP is replaced with 192.168.1.2:8800,is it correct?




Almost correct, but don't include the port number, just 192.168.1.2

The Android modem connection uses port 8990 to talk to the server, but you can't test connectivity to that port as easily with Chrome which is why I had you use 8800 as a test.

Regards,

Bryce Norwood
NowSMS Support
baiyang.sun
New member
Username: Sby1993

Post Number: 2
Registered: 06-2025
Posted on Tuesday, July 08, 2025 - 10:50 am:   

Hi Bryce,

We set the NowSMS server IP address correctly, but it still doesn't work,

Are there any other possible ways to solve this problem?

Best wishes.

baiyang sun
Bryce Norwood - NowSMS Support
Board Administrator
Username: Bryce

Post Number: 8571
Registered: 10-2002
Posted on Tuesday, July 08, 2025 - 07:44 pm:   

Have you defined the modem as a "Remote Direct" modem on the server side of NowSMS?

When you do this, NowSMS displays a message where it is waiting for the modem to connect.

baiyang.sun
New member
Username: Sby1993

Post Number: 3
Registered: 06-2025
Posted on Wednesday, July 09, 2025 - 09:29 am:   

Yes, of course!

I have learned the quick start guide via https://nowsms.com/nowsms-cloud-quick-start-guide.

The configuration information for the server-side and device side is as follows:

device#1
server#1

The final modem state is always connecting......
device#2
Bryce Norwood - NowSMS Support
Board Administrator
Username: Bryce

Post Number: 8574
Registered: 10-2002
Posted on Tuesday, July 15, 2025 - 07:58 pm:   

Can you telnet from another computer to TCP port 8990 on NowSMS? (It presents an HTTP like interface, but will return errors to any HTTP requests.)

Does netstat -a -n show NowSMS listening on port 8990?

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