MR 400 stopped sending SMS

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.

MR 400 stopped sending SMS

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
MR 400 stopped sending SMS
MR 400 stopped sending SMS
2020-10-16 03:11:49 - last edited 2020-10-21 07:37:58
Model: Archer MR400  
Hardware Version: V1
Firmware Version: 1.2.0 0.9.1 v0001.0 Build 170907 Rel.59292n

I'm using a Safaricom SIM with an unlimited SMS account. I used my MR400 to send and receive SMS. Since about 2 weeks I can not send any SMS anymore. It shows for about 20 seconds that it is working but then pops up a message 'Failed to send message'. There are no corresponding entries in the system log. Receiving SMS however is not a problem. I put the SIM in a handset and I can sent SMS as well. From my side nothing changed. Same SIM, same modem, same provider, same settings. Could it have been a firmware update? Thanks for your hints in advance.

  0      
  0      
#1
Options
1 Accepted Solution
Re:MR 400 stopped sending SMS-Solution
2020-10-16 03:49:16 - last edited 2020-10-21 07:37:58
Update: I made screenshots of all my settings, reset the MR 400 to factory settings and keyed my settings back in. Surprise - its working again.
Recommended Solution
  2  
  2  
#2
Options
1 Reply
Re:MR 400 stopped sending SMS-Solution
2020-10-16 03:49:16 - last edited 2020-10-21 07:37:58
Update: I made screenshots of all my settings, reset the MR 400 to factory settings and keyed my settings back in. Surprise - its working again.
Recommended Solution
  2  
  2  
#2
Options