Ubuntu
isc-dhcp package

  1. Bug #1551351
  2. Comment #30

Comment 30 for bug 1551351

Revision history for this message
Alon Albert (alonalbert) wrote :

I believe I am still affected by this bug.

$ dhclient --version
isc-dhclient-4.3.3

My lease is for 24 hours and every day, I get disconnected. If I disconnect and reconnect the Ethernet cable, connection is restored.

kern.log shows this pattern:

Jan 24 03:17:12 kubuntu NetworkManager[1132]: <info> [1485220632.3687] address 10.0.0.6
Jan 24 03:17:12 kubuntu NetworkManager[1132]: <info> [1485220632.3957] plen 24 (255.255.255.0)
Jan 24 03:17:12 kubuntu NetworkManager[1132]: <info> [1485220632.3957] gateway 10.0.0.200
Jan 24 03:17:12 kubuntu NetworkManager[1132]: <info> [1485220632.3957] server identifier 10.0.0.200
Jan 24 03:17:12 kubuntu NetworkManager[1132]: <info> [1485220632.3958] lease time 86400
Jan 24 03:17:12 kubuntu NetworkManager[1132]: <info> [1485220632.3958] hostname 'kubuntu'
Jan 24 03:17:12 kubuntu NetworkManager[1132]: <info> [1485220632.3958] nameserver '8.8.8.8'
Jan 24 03:17:12 kubuntu NetworkManager[1132]: <info> [1485220632.3958] nameserver '10.0.0.200'
Jan 24 03:17:12 kubuntu NetworkManager[1132]: <info> [1485220632.4108] dhcp4 (enp1s0): state changed bound -> bound
Jan 25 03:18:24 kubuntu kernel: [377372.984065] CIFS VFS: Server 10.0.0.2 has not responded in 120 seconds. Reconnecting...

You can see that on Jan 24 at 3:17 I got a 24 hour lease. On Jan 25 at 3:18, almost exactly 24 hours later, I get a network error. There is nothing in between.

This pattern repeats itself every day at around the same time.