Bug 1472983 - Mobile broadband fails on F26 (upgraded from F25)
Mobile broadband fails on F26 (upgraded from F25)
Product: Fedora
Classification: Fedora
Component: NetworkManager (Show other bugs)
x86_64 Linux
unspecified Severity medium
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Assigned To: Lubomir Rintel
Fedora Extras Quality Assurance
Depends On:
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Reported: 2017-07-19 13:55 EDT by Petr Novak
Modified: 2017-07-21 04:56 EDT (History)
4 users (show)

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Last Closed: 2017-07-21 04:56:13 EDT
Type: Bug
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Description Petr Novak 2017-07-19 13:55:51 EDT
Description of problem:
Mobile broadband connection fails to establish in Fedora 26 (upgraded from 25).

The connection worked as expected in previous F25.

How reproducible:

Steps to Reproduce:
1. Upgrade to F26 (e.g. from 25)
2. Connect (or create and connect) a mobile broadband connection via Network Manager
3. Attempt to connect

Actual results:

- The Gnome Network Manager UI returns to a non-connected state.

- mcli conn up uuid ..... shows "Unknown error"

- journalct (system log) gives more info:

- modem-broadband[ttyUSB1]: failed to connect modem: Serial command timed out

Expected results:

A connection to be established
Additional info:

- Modem does not respond to AT commands at /dev/ttyUSB1
- NetworkManager-wwan-1.8.0-6.fc26.x86_64 is installed
- ModemManager can see modem ok: Huawei ME906E port:ttyUSB1 type: GSM
Comment 1 Petr Novak 2017-07-21 04:56:13 EDT

today NetworkManager-wwan-1.8.2-1.fc26.x86_64 has been installed and WWAN connection is now fully operational.

Best regards
Petr Novak

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