Router2Modem Yes! - Modem2Comp No! Internet Access Page 1 / 2

dondonsplace, Jun 5, 6:30am
Hi all, first of all, thanks for viewing.

I have a PC (win7 pro x64) connected to a Router at home, my IP address from the provider is static, and these settings have been set. With Modem>Router>PC the internet is fine.

When I take away the Router, and have Modem>Computer. The internet does not work.

I have entered in the IP addresses correctly multiple times. I even ctrl+c and ctrl+v them from router settings page to IPv4 settings just to make sure. Doesn't work.

I have reset, uninstalled, rolled back, updated the network card twice and nothing, restarted the pc & modem many times.

I have reset the WINS socket (like here: http://windows7themes.net/repair-reset-winsock-windows-7.html)

When I plug my router back into the modem, and then connect the PC to the router. Internet works.

I have tested this with my laptop (windows 7 pro 32bit) and entered the ip settings as I did for the desktop PC, and internet works. (laptop > modem)

What else can I say? I have been to the manufacturers website and updated the driver from there, no good.

If you have any questions or opinions on what I should do, please do say.

P.S. I did ring the telstra clear help desk and not surprisingly got nowhere.

lostdude, Jun 5, 6:40am
Proxy?


gibler, Jun 5, 6:40am
and these mysterious modem and router have model names?

dondonsplace, Jun 5, 6:43am
No proxy has been set, I checked it anyway, and no proxy has been set.

I'm totally stumped on this one, very embarrassing for a networking major it student..

the modem is a standard telstra clear motorolla sb5101.

the router doesn't really matter, since the problem is when the router is taken out of the equation but it is d-link dir-615

gibler, Jun 5, 6:46am
ipv6... dns server..

I assume you aren't using the usb on the modem..?

lostdude, Jun 5, 6:47am
Now lets rule the ethernet adapter out by booting from the latest ubuntu (et al) cd/dvd

dondonsplace, Jun 5, 6:49am
I am using the ethernet connection from modem to pc.

I have just checked the ipv6 ip/dns settings and they are on automatic. I don't suspect DNS is the problem because I cannot even ping an address such as 8.8.8.8 (google dns) or my default gateway. Thanks for the help so far though.

I have hirens boot cd and will load mini linux and attempt to configure the ip settings. Thanks for the idea.. back in 5

dondonsplace, Jun 5, 6:51am
The most mind boggling question for me is, why the hell does my desktop work with the router, and not with only with the modem, with the ip/dns/gateway settings 101% identical.

dondonsplace, Jun 5, 7:05am
well.. it doesn't appear to be working in mini linux or mini xp..

however once again I must say that this pc works when connected to the internet through the router.. (which I also setup, so I am highly doubting pebkac)

lostdude, Jun 5, 7:08am
lol, ok. So have you tried USB as gibler hinted at?

gibler, Jun 5, 7:09am
I wonder if the modem has any rules based on ethernet address...?

..reset modem to factory default.. see if there are firmware updates..

dondonsplace, Jun 5, 7:12am
There is no reset button anywhere on the modem. I pulled the plug for 5min earlier and that didn't help. I don't have the cable to use the USB connection from the modem.

Well gibler I was thinking that myself, so when I went into the router last time I cloned my PC's MAC address onto the router and rebooted.

Still in the same problem after that too..

dondonsplace, Jun 5, 7:13am
I should also add that about 3 weeks ago I had the connection running modem>pc before I bought the router.

vtecintegra, Jun 5, 11:54pm
What are you trying to achieve?

You should be using a router anyway as it provides you with a certain degree of protection that you don't get with a direct internet connection.

drcspy, Jun 5, 11:57pm
there will be - look harder it's often inside a VERy small hole.......

dondonsplace, Jun 6, 12:19am
I want to take the router away because I need it for my laptop somewhere else, but I don't want to leave my partner with no internet on the desktop.

I can safely say that there is no RESET hole/button/switch/etc on the Motorola Surfboard SB5101 Cable Modem.

dondonsplace, Jun 6, 12:23am
I still have this inexplicable question, Why will the *Desktop work behind NAT, not with a Direct Connection to the cable modem.

When my laptop will work in either scenario.. (IP/DG/DNS checked many times)

kitkat66, Jun 6, 12:40am
I had the same problem which turned out to be a faulty eth cable.It was a crossover wrongly packaged as an Ethernet.

dondonsplace, Jun 6, 12:49am
thanks kitkat66, I have 2 cat5's and both are giving me the same result.

dondonsplace, Jun 6, 6:30am
Hi all, first of all, thanks for viewing.

I have a PC (win7 pro x64) connected to a Router at home, my IP address from the provider is static, and these settings have been set. With Modem>Router>PC the internet is fine.

When I take away the Router, and have Modem>Computer. The internet does not work.

I have entered in the IP addresses correctly multiple times. I even ctrl+c and ctrl+v them from router settings page to IPv4 settings just to make sure. Doesn't work.

I have reset, uninstalled, rolled back, updated the network card twice and nothing, restarted the pc & modem many times.

I have reset the WINS socket (like here: http://windows7themes.net/repair-reset-winsock-windows-7.html)

When I plug my router back into the modem, and then connect the PC to the router. Internet works.

I have tested this with my laptop (windows 7 pro 32bit) and entered the ip settings as I did for the desktop PC, and internet works. (laptop > modem)

What else can I say! I have been to the manufacturers website and updated the driver from there, no good.

If you have any questions or opinions on what I should do, please do say.

P.S. I did ring the telstra clear help desk and not surprisingly got nowhere.

lostdude, Jun 6, 6:40am
Proxy!

gibler, Jun 6, 6:40am
and these mysterious modem and router have model names!

dondonsplace, Jun 6, 6:43am
No proxy has been set, I checked it anyway, and no proxy has been set.

I'm totally stumped on this one, very embarrassing for a networking major it student.

the modem is a standard telstra clear motorolla sb5101.

the router doesn't really matter, since the problem is when the router is taken out of the equation but it is d-link dir-615

gibler, Jun 6, 6:46am
ipv6. dns server.

I assume you aren't using the usb on the modem.!

dondonsplace, Jun 6, 6:49am
I am using the ethernet connection from modem to pc.

I have just checked the ipv6 ip/dns settings and they are on automatic. I don't suspect DNS is the problem because I cannot even ping an address such as 8.8.8.8 (google dns) or my default gateway. Thanks for the help so far though.

I have hirens boot cd and will load mini linux and attempt to configure the ip settings. Thanks for the idea. back in 5

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