Hi, I am experiening frequent disconnections when using NM. I used to have the same problems with [Xubuntu 8.10]. Then, the problem was solved by changing the default values of the following in [/etc/ppp/options] to: lcp-echo-interval 0 lcp-echo-failure 0
I have since upgraded to [Xubuntu 9.04], with the latest version of NM, and I keep on getting disconnected, even after changing the values of [lcp-echo-interval] and [lcp-echo-failure] as in [Xubuntu 8.10]. Here are some extracts from some log files debug: ----- May 13 17:37:23 nicholas-desktop NetworkManager: <debug> [1242229043.781635] nm_serial_device_open(): (ttyACM0) opening device... May 13 17:37:24 nicholas-desktop NetworkManager: <debug> [1242229044.218431] nm_ppp_manager_start(): Command line: /usr/sbin/pppd nodetach lock nodefaultroute ttyACM0 noipdefault noauth usepeerdns lcp-echo-failure 0 lcp-echo-interval 0 ipparam /org/freedesktop/NetworkManager/PPP/0 plugin /usr/lib/pppd/2.4.4/nm-pppd-plugin.so May 13 17:37:24 nicholas-desktop NetworkManager: <debug> [1242229044.248610] nm_ppp_manager_start(): ppp started with pid 2641 May 13 17:47:55 nicholas-desktop NetworkManager: <debug> [1242229675.627977] nm_serial_device_close(): Closing device 'ttyACM0' May 13 17:47:58 nicholas-desktop NetworkManager: <debug> [1242229678.000037] ensure_killed(): waiting for ppp pid 2641 to exit May 13 17:47:58 nicholas-desktop NetworkManager: <debug> [1242229678.000165] ensure_killed(): ppp pid 2641 cleaned up May 13 17:48:06 nicholas-desktop NetworkManager: <debug> [1242229686.828937] nm_serial_device_open(): (ttyACM0) opening device... May 13 17:48:07 nicholas-desktop NetworkManager: <debug> [1242229687.240962] nm_ppp_manager_start(): Command line: /usr/sbin/pppd nodetach lock nodefaultroute ttyACM0 noipdefault noauth usepeerdns lcp-echo-failure 0 lcp-echo-interval 0 ipparam /org/freedesktop/NetworkManager/PPP/1 plugin /usr/lib/pppd/2.4.4/nm-pppd-plugin.so May 13 17:48:07 nicholas-desktop NetworkManager: <debug> [1242229687.299174] nm_ppp_manager_start(): ppp started with pid 3027 May 13 17:49:35 nicholas-desktop NetworkManager: <debug> [1242229775.427044] nm_serial_device_close(): Closing device 'ttyACM0' May 13 17:49:35 nicholas-desktop kernel: [ 857.984676] mtrr: no MTRR for d0000000,10000000 found May 13 17:49:37 nicholas-desktop NetworkManager: <debug> [1242229777.999887] ensure_killed(): waiting for ppp pid 3027 to exit May 13 17:49:37 nicholas-desktop NetworkManager: <debug> [1242229777.999997] ensure_killed(): ppp pid 3027 cleaned up messages: -------- May 13 17:37:24 nicholas-desktop pppd[2641]: Plugin /usr/lib/pppd/2.4.4/nm-pppd-plugin.so loaded. May 13 17:37:24 nicholas-desktop pppd[2641]: pppd 2.4.5 started by root, uid 0 May 13 17:37:24 nicholas-desktop pppd[2641]: Using interface ppp0 May 13 17:37:24 nicholas-desktop pppd[2641]: Connect: ppp0 <--> /dev/ttyACM0 May 13 17:37:24 nicholas-desktop pppd[2641]: Remote message: PAP access OK May 13 17:37:24 nicholas-desktop pppd[2641]: PAP authentication succeeded May 13 17:37:24 nicholas-desktop kernel: [ 126.775852] PPP BSD Compression module registered May 13 17:37:24 nicholas-desktop kernel: [ 126.815335] PPP Deflate Compression module registered May 13 17:37:25 nicholas-desktop pppd[2641]: local IP address 172.28.90.247 May 13 17:37:25 nicholas-desktop pppd[2641]: remote IP address 172.28.90.0 May 13 17:37:25 nicholas-desktop pppd[2641]: primary DNS address 41.208.11.219 May 13 17:37:25 nicholas-desktop pppd[2641]: secondary DNS address 209.212.96.1 May 13 17:37:34 nicholas-desktop kernel: [ 137.111102] notification-da[2622]: segfault at 53ce80a ip 0a051371 sp bfdd7d7c error 4 May 13 17:47:55 nicholas-desktop pppd[2641]: LCP terminated by peer May 13 17:47:55 nicholas-desktop pppd[2641]: Connect time 10.5 minutes. May 13 17:47:55 nicholas-desktop pppd[2641]: Sent 236776 bytes, received 4496097 bytes. May 13 17:47:55 nicholas-desktop pppd[2641]: Modem hangup May 13 17:47:55 nicholas-desktop pppd[2641]: Connection terminated. May 13 17:47:55 nicholas-desktop pppd[2641]: Exit. daemon.log: ---------- May 13 17:37:23 nicholas-desktop NetworkManager: <info> Activation (ttyACM0) starting connection 'MTN' May 13 17:37:23 nicholas-desktop NetworkManager: <info> (ttyACM0): device state change: 3 -> 4 May 13 17:37:23 nicholas-desktop NetworkManager: <info> Activation (ttyACM0) Stage 1 of 5 (Device Prepare) scheduled... May 13 17:37:23 nicholas-desktop NetworkManager: <info> Activation (ttyACM0) Stage 1 of 5 (Device Prepare) started... May 13 17:37:23 nicholas-desktop NetworkManager: <debug> [1242229043.781635] nm_serial_device_open(): (ttyACM0) opening device... May 13 17:37:23 nicholas-desktop NetworkManager: <info> Activation (ttyACM0) Stage 1 of 5 (Device Prepare) complete. May 13 17:37:24 nicholas-desktop NetworkManager: <info> (ttyACM0): powering up... May 13 17:37:24 nicholas-desktop NetworkManager: <info> Registered on Home network May 13 17:37:24 nicholas-desktop NetworkManager: <info> Associated with network: +COPS: 0,0,"MTN-SA" May 13 17:37:24 nicholas-desktop NetworkManager: <info> Connected, Woo! May 13 17:37:24 nicholas-desktop NetworkManager: <info> Activation (ttyACM0) Stage 2 of 5 (Device Configure) scheduled... May 13 17:37:24 nicholas-desktop NetworkManager: <info> Activation (ttyACM0) Stage 2 of 5 (Device Configure) starting... May 13 17:37:24 nicholas-desktop NetworkManager: <info> (ttyACM0): device state change: 4 -> 5 May 13 17:37:24 nicholas-desktop NetworkManager: <info> Starting pppd connection May 13 17:37:24 nicholas-desktop NetworkManager: <debug> [1242229044.218431] nm_ppp_manager_start(): Command line: /usr/sbin/pppd nodetach lock nodefaultroute ttyACM0 noipdefault noauth usepeerdns lcp-echo-failure 0 lcp-echo-interval 0 ipparam /org/freedesktop/NetworkManager/PPP/0 plugin /usr/lib/pppd/2.4.4/nm-pppd-plugin.so May 13 17:37:24 nicholas-desktop NetworkManager: <debug> [1242229044.248610] nm_ppp_manager_start(): ppp started with pid 2641 May 13 17:37:24 nicholas-desktop NetworkManager: <info> Activation (ttyACM0) Stage 2 of 5 (Device Configure) complete. May 13 17:37:24 nicholas-desktop NetworkManager: <info> (ttyACM0): device state change: 5 -> 6 May 13 17:37:24 nicholas-desktop NetworkManager: <info> (ttyACM0): device state change: 6 -> 7 May 13 17:37:25 nicholas-desktop NetworkManager: <info> PPP manager(IP Config Get) reply received. May 13 17:37:25 nicholas-desktop NetworkManager: <info> Activation (ttyACM0) Stage 4 of 5 (IP Configure Get) scheduled... May 13 17:37:25 nicholas-desktop NetworkManager: <info> Activation (ttyACM0) Stage 4 of 5 (IP Configure Get) started... May 13 17:37:25 nicholas-desktop NetworkManager: <info> Activation (ttyACM0) Stage 5 of 5 (IP Configure Commit) scheduled... May 13 17:37:25 nicholas-desktop NetworkManager: <info> Activation (ttyACM0) Stage 4 of 5 (IP Configure Get) complete. May 13 17:37:25 nicholas-desktop NetworkManager: <info> Activation (ttyACM0) Stage 5 of 5 (IP Configure Commit) started... May 13 17:37:26 nicholas-desktop NetworkManager: <info> (ttyACM0): device state change: 7 -> 8 May 13 17:37:26 nicholas-desktop NetworkManager: <info> Policy set 'MTN' (ppp0) as default for routing and DNS. May 13 17:37:26 nicholas-desktop NetworkManager: <info> Activation (ttyACM0) successful, device activated. May 13 17:37:26 nicholas-desktop NetworkManager: <info> Activation (ttyACM0) Stage 5 of 5 (IP Configure Commit) complete. May 13 17:37:30 nicholas-desktop ntpdate[2739]: no servers can be used, exiting May 13 17:47:55 nicholas-desktop NetworkManager: <info> (ttyACM0): device state change: 8 -> 7 May 13 17:47:55 nicholas-desktop NetworkManager: <info> (ttyACM0): device state change: 7 -> 9 May 13 17:47:55 nicholas-desktop NetworkManager: <WARN> monitor_cb(): Could not read ppp stats: No such device May 13 17:47:55 nicholas-desktop NetworkManager: <debug> [1242229675.627977] nm_serial_device_close(): Closing device 'ttyACM0' May 13 17:47:55 nicholas-desktop NetworkManager: <info> Marking connection 'MTN' invalid. May 13 17:47:55 nicholas-desktop NetworkManager: <info> Activation (ttyACM0) failed. May 13 17:47:55 nicholas-desktop NetworkManager: <info> (ttyACM0): device state change: 9 -> 3 May 13 17:47:55 nicholas-desktop NetworkManager: <info> (ttyACM0): deactivating device (reason: 0). May 13 17:47:55 nicholas-desktop NetworkManager: nm_system_device_flush_ip4_routes_with_iface: assertion `iface_idx >= 0' failed May 13 17:47:55 nicholas-desktop NetworkManager: nm_system_device_flush_ip4_addresses_with_iface: assertion `iface_idx >= 0' failed May 13 17:47:58 nicholas-desktop NetworkManager: <debug> [1242229678.000037] ensure_killed(): waiting for ppp pid 2641 to exit May 13 17:47:58 nicholas-desktop NetworkManager: <debug> [1242229678.000165] ensure_killed(): ppp pid 2641 cleaned up Please help.
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