Here is some more info. Connections are:
DSL router/modem connects into a Netgear POE switch. This has 4 ports with
power used for the phones. It also has 4 standard ethernet ports. The Avaya
Gateway for the phone system is plugged into one of the standard ports.
There is another 4 port switch hanging off the Netgear that has printers on
it.
In each of the 4 offices, the PC plugs into the Avaya phone, which is then
plugged into the wall jack connecting to a POE port on the Netgear switch.
Other than that, the Avaya system is independent of SBS.
Today, one client randomly lost his Outlook/Exchange connection and his file
shares. I happened to be there when it occurred, and did a successful ping
to the server. Did the same from the server to his PC. I could also access
the internet from his PC without a problem, but no company intranet site. I
logged on to another PC and connected to everything fine. By the time I went
back to his PC, all was connected again. This makes me think it is an
internal issue and not external, right?
I replaced the ethernet cable on the server and it is plugged directly into
the DSL router (it was on the Netgear POE switch before). I also separated
one of the PC and phones, so the PC is now plugged into a wall jack/port
separate from the phone.
As I write this, my remote connection to Outlook/Exchange (Via RPC) has been
lost and restored, as well as an XP desktop connected via RWW to the PC I
separated from the phone. The RWW connection dropped and I had to log in
again. It always drops me from the client PC back to the RWW main menu.
I've also been dropped when remoted into the server, so doesn't matter if it
is client or server.
Should I replace the NIC card on the server? Would a faulty switch cause
the disconnect to the server but still allow clients to access internet?
More thoughts, please!
"Brian Cryer" wrote:
> "LBit" <> wrote in message
> news:C607024B-BE45-464F-B214-...
> > Experiencing intermittent connectivity issues to my SBS2003 server - and
> > they
> > are getting more frequent. Here's the setup: SBS2003 Standard SP2 with
> > all
> > current updates running on HP ML110 server; 4 onsite PCs; 3 used by
> > onsite
> > staff primarily for email, internet, local apps (i.e. - Quickbooks). 1
> > used
> > by remote user via RWW. DSL internet; Avaya VOIP phone system (4 phones)
> > on
> > network.
> >
> > Connections drop/restore throughout the day using various methods.
> > Happens
> > with RWW (VBScript: remote desktop disconnected), VPN (connection to
> > Small
> > Business Server lost), or Outlook (either remote client using RPC, or
> > onsite
> > PC).
> >
> > Also have been dropping phone calls. DSL carrier sees no errors on the
> > line
> > or modem.
>
> Do you mean that if you connect to the modem it gives no indication that the
> connection was lost?
>
> Could be wrong (these things can be difficult to pin down) but I'd suspect a
> hardware failure somewhere probably with the router or switch (assuming the
> two are not combined).
>
> > No errors on the server.
>
> If it were a network card failure on the server (which probably wouldn't
> explain why your VOIP system has problems) then you'd probably (but not
> definitly) see errors being logged on the server. On the assumption that
> your VOIP system is independent of your SBS server then that effectively
> rules out your SBS server from being part of the problem.
>
> > I have updated NIC driver on the server and disabled TCP Chimney based on
> > articles I found. Waiting to see if that helps.
> >
> > Any ideas where/how to troubleshoot?
>
> I find ping an invaluable tool. I'd open up a couple of command windows on
> the SBS box (or PC, it doesn't really matter), in one box leave it pinging
> another pc on the network and in another leave it pinging an external site.
> Then when you next experience problems you can see whether the problem is
> internal or external. That said, if you have a combined router/switch then
> this won't be so clear cut. This might give you a better idea where to look
> for the problem. (Better use cryping (google for it), its also a command
> line ping but can give you an audible alarm on failure.)
>
> In our office we've experience both router failures and switch failures.
> Fortunatly I keep a spare switch for such eventualities, but don't sadly
> have a spare router. If you can, I'd be inclined to look at swapping out
> your router and see if the problem goes away.
>
> This is why we don't use VOIP, its just not as reliable as POTS (Plain Old
> Telephone Service). That's not a reflection on VOIP just that internet
> conections don't seem as reliable as POTS.
>
> Do post back when you find the problem, as this may help others (and I'd
> like to know).
> --
> Brian Cryer
> http://www.cryer.co.uk/brian
>
> .
>
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