I didn't define the router good

[ChaoscripT]

Again,
I can't even access the router.

regards.

[jimasek]

Do you have Windows OS and cable connection to your WDR?

[tapper]

use a ethernet kable from your PC to your router and then you can ping to find out what IP you set. dont try and do it over wifi.

[ChaoscripT]

Yes,
Windows 7.

Regards.

[jimasek]

Give me screenshot from ipconfig /all when you have connection with WDR - LINK

[ChaoscripT]

Now,
I disconnect the cable from main router, and insert to WDR4300,
Here is the results of ipconfig,
C:\Users\חביב>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : חביב-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection 2:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) Ethernet Connection I217-V
Physical Address. . . . . . . . . : 74-D4-35-80-B1-27
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::e5d8:ed26:7e0:6ee4%12(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.0.100(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : יום שני 08 דצמבר 2014 21:11:30
Lease Expires . . . . . . . . . . : יום שלישי 09 דצמבר 2014 01:04:05
Default Gateway . . . . . . . . . : 192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DHCPv6 IAID . . . . . . . . . . . : 309646389
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-D0-6C-96-00-E7-E8-16-0B-10

DNS Servers . . . . . . . . . . . : 192.168.0.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek RTL8139/810x Family Fast Ethernet
NIC
Physical Address. . . . . . . . . : 00-E7-E8-16-0B-10
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{4A05F0A3-051C-41D2-883A-B1C1628784FC}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{347EF9B4-33BD-4748-93A6-BD3B7758BC10}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2001:0:9d38:6ab82fe6:ab93:2f96(Pref
erred)
Link-local IPv6 Address . . . . . : fe80:2fe6:ab93:2f96%14(Preferred)
Default Gateway . . . . . . . . . : ::
NetBIOS over Tcpip. . . . . . . . : Disabled

Regards.

[ChaoscripT]

Ok,
I success to go to failsafe mode,
Now I can control the router,
Now I need help how to do this :
I want to this router (4300) connect to main router in wireless,
Then I can put the 4300 in other place in home, and connect him in ports (ethernet) and it will works,
Can I do it ?

Regards.

[jimasek]

I want to this router (4300) connect to main router in wireless,

Repeater/Bridge Mode you have to catch main SSID and insert security key
Example IP addresses:
Main router: 192.168.1.1
WDR4300: 192.168.1.200
Gateway: 192.168.1.1