Cannot Connect to Internet via Router

Networking, Wireless Routers (802.11 a/b/g/n/ac/ax WiFi), NAT, LAN configuration, equipment, cabling, hubs, switches, and general network discussion
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unique135
New Member
Posts: 3
Joined: Fri Sep 07, 2012 9:20 pm

Cannot Connect to Internet via Router

Post by unique135 »

Here is the situation, I live in student rental apartments.

Basically, they have one main internet line. Main Router is connected to Internet and Second Router is connected to Main Router. After this, each apartment gets a Ethernet line either through Main Router or Second Router. Some renters (students) use this ethernet straight on their computer; while some use routers. I like to use my personal router.

Few months earlier, I was connected to Main Router >via> Ethernet >via> Personal Router. My personal router worked fine. Now, I am on the secondary router. When I connect to Second Router >via> Ethernet >via> Personal Router, there is problem - My Personal Router cannot get any IP from Second Router. It says "Getting IP from DHCP" and it stuck there. When I do diagnosis on Windows 7, it says DNS Server not responding.


Image
I changed my Personal Router's LAN IP
I changed from Personal Router's WAN from Dynamic IP to Static IP
I disabled Personal Router's DHCP.

Nothing works....I am tired of this. Need some advice

Second Router is TP-LINK 340G
Personal Router is CNET CBR-970


Please Please Please help
nwrickert
Member
Posts: 44
Joined: Wed Apr 18, 2012 6:46 pm
Location: Chicago suburbs

Post by nwrickert »

unique135 wrote:Please Please Please help
Too little information.

Too much of the wrong information.

Login to your router. There should be somewhere that it tells you its WAN IP address.

Tell us that WAN IP address (and subnet mask if you can get that).
Tell us also the IP that your router assigns to your computer, and the subnet mask if you can get that.

The most common cause of the problem you are having is an IP conflict -- same range of IPs used on WAN and LAN. The information that I requested will help determine whether that is your problem.
unique135
New Member
Posts: 3
Joined: Fri Sep 07, 2012 9:20 pm

Post by unique135 »

PERSONAL ROUTER CONFIGURATION:
Image

Image

Image

SECOND ROUTER CONFIGURATION:

Image

IP Conflict is not an issue. Both have different LAN IPs.

Sorry for huge images. Thanks for your help
nwrickert
Member
Posts: 44
Joined: Wed Apr 18, 2012 6:46 pm
Location: Chicago suburbs

Post by nwrickert »

Were you required to register a MAC address to allow access?

Maybe the main router is doing MAC filtering, and won't give an IP to your personal router. Have you tried cloning your PC mac address on the personal router? Cloning is meant do deal with that particular problem (where a registered MAC address is required for connecting).
unique135
New Member
Posts: 3
Joined: Fri Sep 07, 2012 9:20 pm

Post by unique135 »

nwrickert wrote:Were you required to register a MAC address to allow access?

Maybe the main router is doing MAC filtering, and won't give an IP to your personal router. Have you tried cloning your PC mac address on the personal router? Cloning is meant do deal with that particular problem (where a registered MAC address is required for connecting).
I cannot access the Main Router. However, I did tried cloning my PC Mac Address to WAN Page on Personal Router.

Weird thing - Only I am the one affected...there are three other students with their routers. No complaints from them.


Lol - I wanna reset Second Router to default...fear that others will be affected as well.
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RaisinCain
Posts: 1941
Joined: Fri Jun 05, 2009 7:11 pm

Post by RaisinCain »

unique135 wrote:Here is the situation, I live in student rental apartments.

Basically, they have one main internet line. Main Router is connected to Internet and Second Router is connected to Main Router. After this, each apartment gets a Ethernet line either through Main Router or Second Router. Some renters (students) use this ethernet straight on their computer; while some use routers. I like to use my personal router.

Few months earlier, I was connected to Main Router >via> Ethernet >via> Personal Router. My personal router worked fine. Now, I am on the secondary router. When I connect to Second Router >via> Ethernet >via> Personal Router, there is problem - My Personal Router cannot get any IP from Second Router. It says "Getting IP from DHCP" and it stuck there. When I do diagnosis on Windows 7, it says DNS Server not responding.


Image
I changed my Personal Router's LAN IP
I changed from Personal Router's WAN from Dynamic IP to Static IP
I disabled Personal Router's DHCP.

Nothing works....I am tired of this. Need some advice

Second Router is TP-LINK 340G
Personal Router is CNET CBR-970


Please Please Please help
http://compnetworking.about.com/od/rout ... etwork.htm
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