The auto negotiation is working fine on all The other ports The LAN isn't affected at all it's only the routers wan port that switches off
On Tuesday, 9 July 2013, Kurt Buff wrote: > On Tue, Jul 9, 2013 at 7:59 AM, Graeme Carstairs > <[email protected]<javascript:;>> > wrote: > > Well after much brain scratching port mirroring wire sniffing etc. > > > > The power definitely isn't an issue. > > > > And the ADSL is a combined router modem, ADSL public IP, LAN side private > > IP, and its the adsl connection on the wan port thats dropped. > > > > It dawned on me the other network we tested this PC on is 100Mb and its > home > > netowrk is Gb > > > > Set the switch port and card to 100Mb full duplex instead of autodetect > and > > I can power it off and on without the ADSL being affected. > > > > set it back to gig and on the windows login screen appearing the ADSL > > switches off and comes back in a few seconds/minutes. > > > > Now prior to this mornings testing we had treid 2 diefferent Netgear ADSL > > Routers and a Zyxell and the same issue occured. > > > > Again when on gig networking there is no errors on the wire, no packet > > storms, no unusual traffic nothing reported anywhere apart from internet > > access failed till the ADSL resets. > > > > So that PC is getting left at 100Mb just now. > > > > Graeme > > > > > > > > > > > > > > > > On 9 July 2013 13:58, Jonathan Kadoo <[email protected] <javascript:;>> > wrote: > >> > >> Does the adsl have an interface to the internal network? If so could it > >> be that the pc and adsl have same ip? > >> > >> > >> On Tue, Jul 9, 2013 at 5:22 AM, Graeme Carstairs > >> <[email protected]<javascript:;> > > > >> wrote: > >>>> > >>>> Hi > >>> > >>> We have a client with SBS essentials 2011 > >>> > >>> A smart switch and a Adsl broadband > >>> > >>> They are having intermittent issues with their broadband the provider > is > >>> looking into. > >>> > >>> The bizarre issue is one pc when it is switched on just as the Ctrl alt > >>> del appears the Adsl goes down for a few minutes then starts up > >>> > >>> Checked the pc no viruses/Trojans etc > >>> > >>> The nic isn't spewing traffic > >>> > >>> The switch shows no errors > >>> > >>> I've tried the pc on a different network with no issues > >>> > >>> Tried different cables and ports > >>> > >>> And just now dropped the speed of the nic to 100MB > >>> > >>> but there are no errors other than the Adsl dropping > >>> > >>> It doesn't help that it drops occasionally when the pcs not there > >>> > >>> But it happens every time the pc is switched on > >>> > >>> Any suggestions > >>> > >>> Graeme > > Sounds like that switch isn't so smart, if it can't handle > autonegotiation without killing other ports. > > Kurt > > > -- Good news everyone, you have just received an e-mail from me!
