Bug 1374780 - Nokia 0421:0638 sometimes doesn't connect
Summary: Nokia 0421:0638 sometimes doesn't connect
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: ModemManager
Version: 7.4
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: rc
: ---
Assignee: Lubomir Rintel
QA Contact: Desktop QE
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-09-09 15:20 UTC by Lubomir Rintel
Modified: 2019-06-25 18:03 UTC (History)
8 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2019-06-25 18:03:13 UTC
Target Upstream Version:

Attachments (Terms of Use)
Log from the failure (42.07 KB, text/plain)
2016-09-09 15:20 UTC, Lubomir Rintel 		no flags Details
Successful connection (32.96 KB, text/plain)
2016-09-09 15:21 UTC, Lubomir Rintel 		no flags Details
View All Add an attachment (proposed patch, testcase, etc.)

Description Lubomir Rintel 2016-09-09 15:20:33 UTC 
Created attachment 1199504 [details]
Log from the failure

"nmcli c up gsm" fails in ~1/30 cases when run in a loop.
Comment 1 Lubomir Rintel 2016-09-09 15:21:10 UTC 
Created attachment 1199505 [details]
Successful connection
Comment 2 Dan Williams 2016-09-09 15:49:32 UTC 
So the real cause of the failure is reported by %IER and it's 34; looking that up in the 3GPP TS 24.008 Annex G.4 shows:

Cause value = 34 Service option temporarily out of order 
This cause is sent when the MSC cannot service the request because of temporary outage of one or more functions required for supporting the service.

This would indicate a problem in the Yota NITB, if the modem is to be believed.
Comment 3 Dan Williams 2016-09-09 16:26:54 UTC 
By "yota nitb" I actually mean the "YateBTS network-in-a-box"
Comment 5 sushil kulkarni 2019-06-25 18:03:13 UTC 
There is no plan to address this.. Will re-open if a requirement for this modem comes up.

-Sushil
Note You need to log in before you can comment on or make changes to this bug.