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Forum Discussion
instagator13
Jan 17, 2019Aspirant
wndr3400 After new spectrum service install i can not RDP, remote into or ping from outside.
I know this model is a bit older but it was working just fine and still is to a certain degree. WNCR3400. One day i have one service provider with one static IP and everything is working fine. Nex...
- Jan 24, 2019
> [...] Then I in a different part of the world attempted to ping his
> that IP and could not [...]As usual, an actual error message would be more helpful than "could
not", but this would suggest (to me, at least) that the WNDR3400v2configuration is not your problem.
> [...] Technicolor TC8717T [...]
That is a modem+router.
> [...] which I did log into today with the default username and
> password."log into" using a web browser? Address/URL?
I'd start looking to see how it's configured. I have never touched a
TC8717T, and I haven't dealt with a block of addresses for decades, and
that was on a DSL connection, so my ability to advise on that stuff may
be very weak.
instagator13
Jan 18, 2019Aspirant
Wow, feels bad, Charlie Brown walk.
Let me be more in depth for you. WNDR3400v2
PING- Equipment involved Spectrum Arris modem/router (i do not know the exact model number as I have not been on site) that is set in bridge mode that has a gateway public IP from spectrum. NetGear WNDR3400v2 set for static IP with first usable public IP, (provided by spectrum) subnet mask, gateway IP (referencing spectrums gateway IP they supplied me (which i can ping from outside of the domain, a computer in my office in another city)
I can't ping the public IP from Spectrum (first usable IP) from anywhere outside of my network. From any computer outside of that LAN to that WAN IP. Pings from outside time out from CMD. There are no errors to show. The setting in the NetGear router that has to do with responding to ping it enabled. * I'm fully aware that ping and rpd are completely separate * It’s odd that all of this works before Spectrum service and none of it works after service.
RDP- I set a rule in port forwards called RDP with and alternate port referenced that my server is set to listen on for RDP requests. This rule says to use TCP and to forward :XXXX to my servers internal (private) IP:XXXX address. My server is most certainly listening on the port for RDP. I would copy and paste it for you however I cannot get into the NetGear router nor my server because RDP and the remote management (this feature is also turned on) feature built into the NetGear router are not working. I will have to drive out and get eyes on next with or try to get someone to do a go to with me out at that location.
Spectrum and IP's - This location signed up for this service and did not include me in the discussion. I was called on the turn up date and forwarded an email with a block of IP addresses from Spectrum which included;
Network:71.66.x.x
Gateway: 71.66.x.x
Useable: 71.66.x.x
Broadcast:71.66.x.x
Size: /30
Subnet:255.255.255.252
TWC DNS1:209.18.x.x
TWC DNS2:209.18.x.x
Spectrums equipment gets the "gateway" IP which I can ping
I had someone onsite set the NetGear Router, under "internet setup" as "use static ip" with "Usable" IP from spectrum as the IP address, IP "Subnet Mask" as "Subnet" IP provided by Spectrum, "Gateway IP address" as "Gateway" IP and DNS server IP's provided by Spectrum as DNS IP's
THEM - YES I had the people on site call SPECTRUM to confirm their equipment (and Arris cable modem/router) was in bridge mode and not double NATing with the NETGEAR. I don't know the spectrum equipment's exact model number as of yet. I will have to drive out or do a go to on a device inside their domain. The NetGear is apparently (I haven't gotten eyes on) set with 71.66.x.x as WAN (usable IP from spectrum)
Inside the building (LAN) I've had someone on site log into the NetGear router using its internal IP address....works. I've had that same person remote into the server in question using the internal IP + port and using the server name....works. The address scheme of the LAN is default of 192.168.x.x
I'm sorry that it's short on the detailed info as I do not really have a reliable person onsite. I am going to try and make it out there next week. The RDP is not critical and seeing how the internet is up and running at full speed with current settings it hasn't been a rush for me.
When sitting on the LAN the user can use the WAN IP of 71.66.x.x:8080 (usable IP assigned to the NetGear router provided by Spectrum) to access the "remote management" of the router. I cannot from my office in another city.
I will try to obtain more info......sorry
instagator13
Jan 22, 2019Aspirant
Today i was able to get on a goto meeting with someone on site and the NetGear router is configured correctly with the proper IP's from Spectrum. The port forward rule is configured correctly and we are seeing the port forward attempts hitting the log of the netgear. I still can not ping, remote manage (using the built-in feature) the netgear, nor RDP to the my internal server from outside the LAN. All this this can be done within the LAN. I can ping the spectum modem from outside as well.
Firmware version: v1.0.0.54_1.0.82
- instagator13Jan 22, 2019Aspirant
One more additional side note. Unrelated but potential signal of a problem with the netgear router. The customer is paying for 100mb of band width. Wireless through the netgear they are getting 12mb down and wired 30mb down. If my contact sets his laptop up with the first usable IP from spectrum and all of the other static settings (subnet, gateway, DNS) provided by spectrum and plugs directly into the Spectrum modem/router he gets 112mb down.
- wcalifasJan 23, 2019Prodigy
In my opinion you should upgrade your wifi router to something with better speeds to take advantage of the spectrum speeds you're subscribing. I currently have the wndr4500 with my spectrum account and haven't had any issues at all. I know there's even newer ones like the nighthawk but for me this works for now and let's me take advantage of the speeds I'm subscribed to with spectrum.
- antinodeJan 23, 2019Guru
> [...] a block of IP addresses from Spectrum which included; [...]
Your situation is different from (and more complicated than) that of
most folks here, because you have more than one public IP address. To
make sense of these data, I'd need to see the _last_ octet of each of
those addresses.
> Size: /30
> Subnet:255.255.255.252
So, you have a block of four addresses?
> [...] gave the netgear my first usable IP [...]
Have you more than one "usable IP [address]"? What's the _second_
usable IP [address]?
> [...] I can't ping the public IP from Spectrum (first usable IP) from
> anywhere outside of my network. [...]
ADVANCED > Setup > WAN Setup : Respond to Ping on Internet Port
Did you check that box?
> I had someone onsite set the NetGear Router, under "internet setup" as
> "use static ip" with "Usable" IP from spectrum as the IP address, IP
> "Subnet Mask" as "Subnet" IP provided by Spectrum, "Gateway IP address"
> as "Gateway" IP and DNS server IP's provided by Spectrum as DNS IP's
Plausible. But you could set any address you might like that way,
whether or not it makes any sense with the other equipment or your ISP.
What happens if you check "Get Dynamically from ISP"? (That could be a
total failure without being your actual problem, but it might be
interesting. Be prepared to revert to the static address data.)
> Inside the building (LAN) I've had someone on site log into the
> NetGear router using its internal IP address....works. I've had that
> same person remote into the server in question using the internal IP +
> port and using the server name....works. The address scheme of the LAN
> is default of 192.168.x.x
There's no need to hide any of the (private) "192.168.x.x" addresses.
Can you get a "ping" response using a system on the LAN from the
(public) WAN/Internet IP address of the WNDR3400v2? (After checking the
"Respond to Ping [...]" box.)
> [...] This rule says [...]
Copy+paste is your friend.
Similarly, can you make a Remote Desktop connection from a system on
the LAN to the (public) WAN/Internet IP address of the WNDR3400v2
(specifying the external port number)? That would suggest a good
port-forwarding rule.
> When sitting on the LAN the user can use the WAN IP of 71.66.x.x:8080
> (usable IP assigned to the NetGear router provided by Spectrum) to
> access the "remote management" of the router.
That suggests that the WNDR3400v2 WAN/Internet interface really is
configured with that IP address. But that doesn't prove that the "Arris
cable modem/router" is not configured the same way, and that gizmo would
see any outside-world traffic to that address before it ever got to the
WNDR3400v2.
> [...] I had the people on site call SPECTRUM to confirm their
> equipment (and Arris cable modem/router) was in bridge mode and not
> double NATing with the NETGEAR. [...]
That's nice, but if that "Arris cable modem/router" actually is
acting as a modem+router rather than as a modem-only, then that might
explain your trouble.
> [...] The port forward rule is configured correctly [...]
If you say so. I can't see it from here.
> [...] and we are seeing the port forward attempts hitting the log of
> the netgear. [...]
Can't see that log, either.
> [...] I can ping the spectum modem from outside as well.
What, exactly, does that mean? See "As usual, [...]", above. Which
address is that? Is "the spectum modem" the same thing as "Arris cable
modem/router"?
If that's a DOCSIS cable modem(+anything), the you might be able to
web browse to it from the LAN at "192.168.100.1". If so, then perhaps
you could learn something about its configuration that way (without
involving the middleman).
As a test, have you tried connecting a computer directly to the
"Arris cable modem/router", without involving the WNDR3400v2? If the
"Arris cable modem/router" really is as transparent as everyone claims,
then a simple Remote Desktop connection should work from the outside
world to such a computer (on the default port, so I wouldn't leave it
exposed that way for more time than required to run the test).
> In my opinion you should upgrade your wifi router [...]
Anyone should, but I don't see how that could solve the current
addressing/port-forwarding problem.
> [...] I currently have the wndr4500 with my spectrum account and
> haven't had any issues at all. [...]
Ok. And do you have a block of IP addresses? And is your
modem(+router?) configured like the one in this situation?
I'd worry about the addressing/port-forwarding problem before I
started buying still more hardware (of questionable benefit). Function
first, speed later.