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"LCP down ..."

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Sun 03/02/13 at 18:55
Regular
"Feather edged ..."
Posts: 8,536
Evening all ...

Can anyone explain the following and a likely cause for this appearing in the router log, in an otherwise stable connection:

Sun, 2013-02-03 17:25:14 - LCP down.
Sun, 2013-02-03 17:25:15 - DHCP server stopped
Sun, 2013-02-03 17:25:15 - DHCP server started
Sun, 2013-02-03 17:25:15 - LCP down.
Sun, 2013-02-03 17:25:21 - Initialize LCP.
Sun, 2013-02-03 17:25:21 - LCP is allowed to come up.
Sun, 2013-02-03 17:25:21 - CHAP authentication success
Sun, 2013-02-03 17:26:45 - LCP down.
Sun, 2013-02-03 17:26:47 - DHCP server stopped
Sun, 2013-02-03 17:26:47 - DHCP server started
Sun, 2013-02-03 17:26:47 - Initialize LCP.
Sun, 2013-02-03 17:26:47 - LCP is allowed to come up.
Sun, 2013-02-03 17:26:48 - CHAP authentication success

I know that LCP is Link Control Protocol but what is a possible cause for this drop in connection?
Mon 04/02/13 at 14:51
Regular
"Feather edged ..."
Posts: 8,536
Hmmm... wrote:
I can't recommend RouterStats (free s/w) highly enough to monitor your line and help you see what's happening.

Just had a look at RouterStats and it certainly does give a great insight into a connection. Whether I can understand it all and be able to do something to correct a problem is another matter, but I'll certainly give it a go :¬)
Mon 04/02/13 at 12:23
Moderator
"Are you sure?"
Posts: 5,000
Hi DL,
I can't recommend RouterStats (free s/w) highly enough to monitor your line and help you see what's happening.

See previous RouterStats thread for details.

This will help you see if your line is losing sync or just the PPP session.

[s]Hmmm...[/s]
Mon 04/02/13 at 12:11
Regular
"Feather edged ..."
Posts: 8,536
Hmmm... wrote:
EDIT: As for reasons...
If your line is maintaining sync (so not a line fault etc.) then the kit/software that looks after your login session could have had a blip/hiccup.


Thanks again Hmmm ... that is a distinct possibility as Netgear 'Genie' seems to have a mind of its own at times!
Mon 04/02/13 at 09:36
Moderator
"Are you sure?"
Posts: 5,000
The LCP is looking after your PPP connection. So it's possible you lost your PPP connection and not your sync. This can happen occasionally and it appears your router logged back in.

If it's happening a lot then that's not normal, but once in a while is ok.

Again as far as I can see this is all to do with your router and ADSL connection not your PC kit :¬)

[s]Hmmm...[/s]


EDIT: As for reasons...
If your line is maintaining sync (so not a line fault etc.) then the kit/software that looks after your login session could have had a blip/hiccup.
Mon 04/02/13 at 09:24
Regular
"Feather edged ..."
Posts: 8,536
Hmmm... wrote:
I take it other connected equipment in the house also loses it's internet connection when this happens? If that's the case then that would show it's not your PC's network drivers.

Morning Hmmm ...

True, the wireless connected equipment also lost connection, but the router itself showed all signs of being connected and of transmitting!

It's a Netgear N300 Wireless Dual Band ADSL2+ Modem router (DGND 3300v20 running the latest firmware.
Mon 04/02/13 at 09:14
Moderator
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Morning DL,
I'm not familiar with Netgear's 'genie' software - but I'm guessing it just saw the connection had dropped so starts trying to recover things by executing it's pre-defined scripts.

I take it other connected equipment in the house also loses it's internet connection when this happens? If that's the case then that would show it's not your PC's network drivers.


[s]Hmmm...[/s]
Mon 04/02/13 at 08:04
Regular
"Feather edged ..."
Posts: 8,536
Hi Hmmm and thanks ...

However, during the 'downtime', Netgear genie reported that the adapter was disabled and attempted to enable it, which it did and a connection was then established with the router to view the logs.
Sun 03/02/13 at 21:25
Moderator
"Are you sure?"
Posts: 5,000
Hi DL,
Your first post was concerning your broadband connection, so changing network adaptor drivers obviously won't affect that.

i.e. it was your router reporting things so it doesn't matter if your PC is turned off or on.

[s]Hmmm...[/s]
Sun 03/02/13 at 20:27
Regular
"Feather edged ..."
Posts: 8,536
Hi Hmmm ...

Have just updated drivers for my Realtek Network adapter, gone from 6.251 to 6.252 in the space of 4 months! Maybe this was where the problem was? We shall see ...

Thanks DL
Sun 03/02/13 at 19:18
Regular
"Feather edged ..."
Posts: 8,536
Hmmm... wrote:
Hi DL.
There are lots of reasons for a connection to drop!


Thanks for the link which has been 'inwardly digested' but I'm still no nearer to an explanation for LCP down ... there may be many reasons for connection drop, but one that states 'LCP down' seems to indicate a more specific reason than ... "it could be anything"

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