Need a networking pro

[moefugger]

Few questions.
The cable modem has no WiFi?
Why do you have two WiFi routers when the fastest one will downgrade to the slower formats unless you have specifically set not to?
Network printer does not affect anything if set up correctly.
The cable modem should have a few outputs so why have the switch?
Sounds like a business set up.

[zero-g]

Originally Posted by moefugger

Few questions.
The cable modem has no WiFi?
Why do you have two WiFi routers when the fastest one will downgrade to the slower formats unless you have specifically set not to?
Network printer does not affect anything if set up correctly.
The cable modem should have a few outputs so why have the switch?
Sounds like a business set up.

this was more of a mixed use network. I also had 2 other clients on this network , one being for business use only and the other a media server.

I've found a much simpler solution to the other thing for the future ,but for now I was trying to use the equipment I already have on hand.

will right the whole story out when I get back home and not on my phone.

[castanza128]

Originally Posted by zero-g

So, I'm switching from dsl to cable internet.

what I had...

DSL modem , connected to that was an 8 port 10/100/100 switch.

coming out of the switch ......
2 terminals
1 network printer
2 wireless routers (1 g / 1 n serving assorted wireless devices)
1 Ethernet (dangling) for occasional laptop connection

everything worked fine


NOW

have cable internet with a Motorola surfboard sb6141 docsis 3.0 platform

I hooked it to the switch via cat5 Ethernet and the network fails
(8 port 10/100/1000 SMC networks e-z switch smcgs8p-smart)

I can get 1 terminal to connect to the internet using any of the 8 ports but can't talk to the printer or any other devices. (printer is set with static ip, checked and correct on the sending terminals)

the other terminal will not connect to the internet (only if it is connected directly to the new modem)

the wireless n linksys e1200 will connect to internet

the Linksys wireless g wrt54gs will not connect



I have rebooted everything , checked wires, ip addressing , nothing works.
if I run the same set up back through the DSL modem, it works perfectly.

Comcast tech was stumped, they don't really do much past the modem, and the signal coming from the modem is good.


I've never had this issue before

compatibility?

HELP

This should have been an easy one for the tech. Most cable isp's limit the number of CPE's (customer premises equipment) on a cable modem. It is right there in the cable modems config file as soon as it connects, telling it how many to allow. (usually only one)
To put it short, they only give you one IP, unless you pay for more. DSL usually gives 5 or so. The cable modem will assign that ip to the first device that asks for it. The rest will pretty much be ignored iirc.
This is not really a problem. you just need to set it up: Cable modem, to router, (nat and dhcp enabled) to everything else. So that your other devices (including the other router) get their ip from the router instead of the cable modem. NAT ip= as many as you need
Also: turn dhcp and nat off on the 2nd wifi router if you want it's clients to be on the same subnet for proper sharing. Or use "bridge mode" if it has the option in the routers configuration page.

[laserjobs]

You only get one IP chisel chest. Replace your switch one of the routers.

[sppoc]

Originally Posted by zero-g

So, I'm switching from dsl to cable internet.

what I had...

DSL modem , connected to that was an 8 port 10/100/100 switch.

coming out of the switch ......
2 terminals
1 network printer
2 wireless routers (1 g / 1 n serving assorted wireless devices)
1 Ethernet (dangling) for occasional laptop connection

everything worked fine


NOW

have cable internet with a Motorola surfboard sb6141 docsis 3.0 platform

I hooked it to the switch via cat5 Ethernet and the network fails
(8 port 10/100/1000 SMC networks e-z switch smcgs8p-smart)

I can get 1 terminal to connect to the internet using any of the 8 ports but can't talk to the printer or any other devices. (printer is set with static ip, checked and correct on the sending terminals)

the other terminal will not connect to the internet (only if it is connected directly to the new modem)

the wireless n linksys e1200 will connect to internet

the Linksys wireless g wrt54gs will not connect



I have rebooted everything , checked wires, ip addressing , nothing works.
if I run the same set up back through the DSL modem, it works perfectly.

Comcast tech was stumped, they don't really do much past the modem, and the signal coming from the modem is good.


I've never had this issue before

compatibility?

HELP

open up your router settings in your browser and update the firmware for your router. and enable dmz. see if that helps

[freefalling]

You came to the wrong place then

[philomath]

Originally Posted by sppoc

open up your router settings in your browser and update the firmware for your router. and enable dmz. see if that helps

Humm, Humm, Humm... NOT a good idea. Enabling a demilitarized zone just disables the firewall, who on earth would ever want to do that?