pmp450 continous disconections

Hi

I have an SM which continously disconnects from the AP and then reconnects. I think this SM may be defective because the other SMs are connected several days without disconnections:

...

01/23/2016 : 18:37:14 CAT : Event: SMSESFAIL, MsgType: SMVCERR, NewState: OOSERVICE, Flag 1185
01/23/2016 : 18:37:37 CAT : Event: SMSESACTIVATE, NewState: REGISTERING, Flag 0
01/23/2016 : 18:37:37 CAT : Event: SMSESMSG, MsgType: SES_AAATMPACCESS, NewState: REGISTERING, Flag 17
01/23/2016 : 18:37:44 CAT : Event: SMSESMSG, MsgType: SES_AAAEAPSTARTTO, NewState: REGISTERING, Flag 0
01/23/2016 : 18:38:03 CAT : Event: SMSESFAIL, MsgType: SES_AAAREGGNTTO, NewState: OOSERVICE, Flag 0
01/23/2016 : 18:38:13 CAT : Event: SMSESACTIVATE, NewState: REGISTERING, Flag 0
01/23/2016 : 18:38:13 CAT : Event: SMSESMSG, MsgType: SES_AAATMPACCESS, NewState: REGISTERING, Flag 17
01/23/2016 : 18:38:13 CAT : Event: SMAUTHORMSG, NewState: REGISTERING, Flag 0
01/23/2016 : 18:38:12 CAT : Event: SMAUTHENMSG, NewState: REGISTERING, Flag 0
01/23/2016 : 18:38:12 CAT : Event: SMSESINS, NewState: REGISTERED, Flag 18
01/23/2016 : 18:38:12 CAT : Event: SMAUTHORMSG, NewState: REGISTERED, Flag 0
...

I updated the SM from 13.4.1 build 6 to 14.1.2 build 4 and disconnections seems reduced from every 10-30 minutes to 1 each hour or so..

The AP is 13.4.1 build6 and other SM (~100) are a mix between 13.4 and 13.4.1build 6

Please let me know if I should RMA this unit.

Regards

Antonio

Did you find a solution?  I'm seeing something similar. 

**

PMP450i, FW ver 15.0.2, board type P11C120 

** This is the issue, frequent dropping

repeated 2 times
03/23/2017 : 12:09:52 UTC : Event: SMSESFAIL, MsgType: OOS, NewState: OOSERVICE, Flag 0
03/23/2017 : 12:13:10 UTC : Event: SMSESACTIVATE, NewState: REGISTERING, Flag 0
03/23/2017 : 12:13:10 UTC : Event: SMSESFAIL, MsgType: SMREGGNTREJ, NewState: OOSERVICE, Flag 1
03/23/2017 : 12:16:20 UTC : Event: SMSESACTIVATE, NewState: REGISTERING, Flag 0
03/23/2017 : 12:16:23 UTC : Event: SMSESMSG, MsgType: REGREQTO, NewState: REGISTERING, Flag 0
03/23/2017 : 12:16:23 UTC : Event: SMSESINS, NewState: REGISTERED, Flag 18
03/23/2017 : 12:16:23 UTC : Event: SMAUTHORMSG, NewState: REGISTERED, Flag 0

This happens with poor SnR. It seems when it is around -14 it sometimes drop off. My case was interference. You may try a differant freq.