Re: Loosing Internet Connection

Rerunning those wizards does one odd thing: It resets your network card. Completely. That will, in many cases, cause a network device to flush any caching, packets, or other data it may have had for the NIC that blinked. Note that this usually happens at or below the IP level. ARP caches, MAC addressing, etc. That would also explain why changing DNS on a client machine fixes the issue for that machine. Different MAC, different routing, etc. Things appear to work....but ultimately it still comes back to that ping test that failed. That can, in no way, be pinned on the server.

Check to see if you can update the firmware/software on the DSL gateway...or switch it out for another device. I'll be honest, I haven't seen this problem with Netopias before, but Actiontecs are notorious for doing exactly the behavior you've described. Good luck.

-Cliff

"Ralph" <Ralph@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message news:ED161105-561C-4B13-AB09-D1788672653B@xxxxxxxxxxxxxxxx
After I removed the RV042 I used the Netopia as a DSL router not a bridge.
After doing this I experienced the same behavior. What gets me is as I
mentioned in my original post that if I changed a workstations DNS to point
to a public DNS i.e. AT&T, Verizon, etc.) I have Internet access on that
particular machine, thus indicating that the DSL connection is still present.
This is why I started to think that perhaps the problem layed on the
server??? Especially since after I ran the Internet/Mail wizard on the
server it starts to work again??? So, if not the server and I still have
internet access what can it be?

"Cliff Galiher" wrote:

Based on the configuration you posted, it appears as though your server has
a private address (192.168.1.91 is not a public IP.) So I have to conclude
that your Linksys device is obtaining the public IP and functioning as a NAT
device as well as a firewall.

So, actually, both my question AND my observation would still apply:

1) How did you remove the Linksys device without breaking your network since
it apparently holds the public IP?
2) The Linksys, holding the public IP, would respond to any external pings
you send, not your server. Thus, your ping results being flaky point to a
problem outside of the server. Linksys, DSL gateway, cables, or ISP. But
not your server.

-Cliff

"Ralph" <Ralph@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:EE445E96-50BA-47DB-93D8-D8C2008381AF@xxxxxxxxxxxxxxxx
> Server's Ip config /all
>
> Windows IP Configuration
>
> Host Name . . . . . . . . . . . . : basulto05
> Primary Dns Suffix . . . . . . . : basulto.local
> Node Type . . . . . . . . . . . . : Unknown
> IP Routing Enabled. . . . . . . . : Yes
> WINS Proxy Enabled. . . . . . . . : Yes
> DNS Suffix Search List. . . . . . : basulto.local
>
> PPP adapter RAS Server (Dial In) Interface:
>
> Connection-specific DNS Suffix . :
> Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
> Physical Address. . . . . . . . . : 00-53-45-00-00-00
> DHCP Enabled. . . . . . . . . . . : No
> IP Address. . . . . . . . . . . . : 192.168.1.36
> Subnet Mask . . . . . . . . . . . : 255.255.255.255
> Default Gateway . . . . . . . . . :
> NetBIOS over Tcpip. . . . . . . . : Disabled
>
> Ethernet adapter Server Local Area Connection:
>
> Connection-specific DNS Suffix . :
> Description . . . . . . . . . . . : Broadcom BCM5708C NetXtreme II > GigE
> (NDIS VBD Client)
> Physical Address. . . . . . . . . : 00-18-8B-2E-58-25
> DHCP Enabled. . . . . . . . . . . : No
> IP Address. . . . . . . . . . . . : 192.168.1.91
> Subnet Mask . . . . . . . . . . . : 255.255.255.0
> Default Gateway . . . . . . . . . : 192.168.1.1
> DNS Servers . . . . . . . . . . . : 192.168.1.91
> Primary WINS Server . . . . . . . : 192.168.1.91
>
> As for the other questions regarding the DSL connectivity, hopefuly > this
> will help clear some questions up. There's a Netopia DSL Modem/Reouter
> set
> up in bridge mode connected with a Linksys RV042 DSL Router/Firewall.
> The
> LAN ip is static to 192.168.1.1 and the WAN IP is obtained from the > PPOE
> connection. And yes the PPOE WAN IP is a static address.The services > are
> then fowarded accordingly via the RV042 to the server. i.e. Service > SMTP
> on
> port 25 is fowarded to the server and so on...
>
>
> "Cliff Galiher" wrote:
>
>> I agree with SteveB and Marina that you should address all >> issues....BUT,
>> I
>> suspect this isn't your problem.
>>
>> first, as already asked, an ipconfig /all on your server would be
>> helpful.
>> Secondly, you mention that your DSL gateway is bridging, so we will
>> assume,
>> for the moment that it doesn't hold an external IP address. If this
>> assumption is wrong, please speak up!
>>
>> You said you are using the linksys as a firewall/router. Does this >> mean
>> it
>> has an external IP? And if so, does the server also have an external >> IP?
>> Or is it configured with a private IP via NAT? Of course your >> ipconfig
>> will answer this question, but with either answer I'll have to admit >> some
>> confusion which I will explain now, so that you can perhaps provide an
>> answer along with your ipconfig.
>>
>> If your linksys is runing in a NAT configuration, how did you remove >> it
>> without breaking your entire network? For this to work, you'd need >> some
>> head unit holding at least one external IP and routing for you to >> verify
>> that the problem persisted.
>>
>> Alternatively, if your device holds an external IP and your SBS server >> is
>> confgured to utilize a NAT address then your ping test should NOT have
>> pointed to the server as a problem. The server would not respond to a
>> ping
>> on the external address. If pings were timing out and then returned on
>> their
>> own, you can most assuredly start looking at the network structure
>> (cable,
>> devices, software) of everything between the linksys (INCLUDNG the
>> Linksys)
>> and the internet...as that is the device that should have been >> responding
>> to
>> the ping....
>>
>> Hope that helps you narrow your search,
>>
>> -Cliff
>>
>>
>>
>> "SteveB" <newsgroup@xxxxxxxxxx> wrote in message
>> news:OR2csfO0IHA.4004@xxxxxxxxxxxxxxxxxxxxxxx
>> > As Marina says you should take action on this and any other issues >> > the
>> > BPA
>> > flags.
>> >
>> > "Ralph" <Ralph@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
>> > news:9101C7CA-7B46-413D-92DB-61A16AF1BDD2@xxxxxxxxxxxxxxxx
>> >> SteveB
>> >>
>> >> Thanks for the response.
>> >> Currently we are running SBS 2003 SE. After I ran the SBS BPA I
>> >> received
>> >> warnings on a second NIC wich is disabled, so I'm ignoring this for
>> >> now.
>> >>
>> >> One thing that caught my eye was:
>> >> EDNS is Enabled:
>> >> EDNS is enabled on this server. Some of the routers or firewalls >> >> may
>> >> not
>> >> support EDNS. You should disable EDNS on this server. To do so, >> >> click
>> >> Start,
>> >> and then click Command Prompt. In the Command Prompt window, type
>> >> dnscmd
>> >> /Config /EnableEdnsProbes 0 and then restart the DNS Server >> >> service.
>> >>
>> >> Is this a problem? Should I perform the recommended task?
>> >>
>> >> "SteveB" wrote:
>> >>
>> >>> Not a good idea. Only the SBS IP address should be in the DNS >> >>> setting
>> >>> for
>> >>> both workstations and the server-no external ISP DNS IPs.
>> >>>
>> >>> Ralph is this SBS SE or PE (with ISA 2004 installed) and 1 or 2 >> >>> NICs.
>> >>> Is
>> >>> SBS
>> >>> 2003 SP1 fully installed and then have you installed Windows 2003
>> >>> SP2?
>> >>>
>> >>> Run the SBS BPA to see if it shows any problems that should be
>> >>> corrected.
>> >>>
>> >>> "Johnfli" <john@xxxxxxx> wrote in message
>> >>> news:Ovbo33L0IHA.4848@xxxxxxxxxxxxxxxxxxxxxxx
>> >>> > add an additional DNS entry on the server as that of the one you
>> >>> > said
>> >>> > you
>> >>> > used on a workstation.
>> >>> > Also include that additional DNS entry gets broadcasted out to >> >>> > the
>> >>> > client
>> >>> > workstations.
>> >>> >
>> >>> >
>> >>> > "Ralph" <Ralph@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
>> >>> > news:98A639C4-811E-4F47-96F2-5ADCB54F05AC@xxxxxxxxxxxxxxxx
>> >>> >> We have been experiencing problem with the Internet connection >> >>> >> for
>> >>> >> the
>> >>> >> past
>> >>> >> month & I just don't know what to do anymore.
>> >>> >>
>> >>> >> Our Environment consists of a Windows Small Business Server and
>> >>> >> the
>> >>> >> set
>> >>> >> up
>> >>> >> is really straight forward. The Server is responsible for DHCP >> >>> >> so
>> >>> >> all of
>> >>> >> the
>> >>> >> clients have the same settings. The DNS is the Server's IP and
>> >>> >> the
>> >>> >> default
>> >>> >> gateway is the router. The DSL Router (Netopia) is set up in
>> >>> >> bridge
>> >>> >> mode
>> >>> >> with a Linksys RV042 being used as a firewall/router.
>> >>> >>
>> >>> >> The behavior is strange??? For some reason after a few days or >> >>> >> a
>> >>> >> week or
>> >>> >> so
>> >>> >> no one can get to the internet nor do we receive any e-mails. >> >>> >> I
>> >>> >> know
>> >>> >> for
>> >>> >> a
>> >>> >> fact that the DSL connection is still good because if I run the
>> >>> >> Internet/e-Mail connection wizard on the Server everything >> >>> >> starts
>> >>> >> working
>> >>> >> once again. Also, if I change the DNS entry on a workstation >> >>> >> to
>> >>> >> be
>> >>> >> that
>> >>> >> of
>> >>> >> an ISP (i.e. AT&T, Verizon, etc.) I have Internet access on >> >>> >> that
>> >>> >> particular
>> >>> >> machine.
>> >>> >>
>> >>> >> Sometimes when I ping the external IP I get request timed out, >> >>> >> but
>> >>> >> after
>> >>> >> a
>> >>> >> few minutes I start receiving replies??? So at this point
>> >>> >> everything is
>> >>> >> pointing to the Server? I think???
>> >>> >>
>> >>> >> Below is a list of things which I have done in troubleshooting
>> >>> >> this
>> >>> >> problem:
>> >>> >>
>> >>> >> 1 - I removed the RV042 from the set up but the problem still
>> >>> >> persisted.
>> >>> >> 2 - I have made sure that the DSL line has the needed filters.
>> >>> >> 3 - I changed the Servers patch cable and changed it to a
>> >>> >> different
>> >>> >> port
>> >>> >> on
>> >>> >> the LAN switch.
>> >>> >> 4 - I have updated the Server's NIC drivers.
>> >>> >> 5 - I have checked the Event Viewer but nothing is being
>> >>> >> registered
>> >>> >> here.
>> >>> >>
>> >>> >> Any help regarding this issue is greatly appreciated.
>> >>> >>
>> >>> >> Thanks,
>> >>> >> Ralph
>> >>> >>
>> >>> >
>> >>> >
>> >>>
>> >>>
>> >>>
>> >
>> >
>>


.

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