WRT54G DHCP issue with cable modem.

[RCuber]

Hello,
I have a WRT54G (rev 7 non DDWRT Compatible) router, its connected to a Hathway Docsis 3.0 cable modem (via WAN Port). I have a issue with router picking wrong DHCP configuration on power failure.

this is my internet setting. DHCP will just pick the details off the modem.
*i.imgur.com/sj6fUQ8.png

this is the IP details when router after reboot (including modem).
*i.imgur.com/nQUejpv.png

I need to click on the DHCP release button and then click DHCP Renew to get the correct settings. it becomes a issue when I am not in house as my family members would not understand this process.

 

[Ascendant001]

need more details.post the screenshot of hathway cable modem settings page.if you can't access it then post lan & connection settings page of netgear when it is working correctly.also post ipconfig /all command result for both cases.

 

[RCuber]

Cant get hathway modem page.

Windows IP Configuration

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

Ethernet adapter Ethernet:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Intel(R) 82579V Gigabit Network Connectio
n
   Physical Address. . . . . . . . . : xxxxxxxxxxxx
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : xxxxxx(Preferred)
   IPv4 Address. . . . . . . . . . . : 192.168.1.103(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Lease Obtained. . . . . . . . . . : 13 August 2014 22:40:40
   Lease Expires . . . . . . . . . . : 14 August 2014 22:40:40
   Default Gateway . . . . . . . . . : 192.168.1.1
   DHCP Server . . . . . . . . . . . : 192.168.1.1
   DHCPv6 IAID . . . . . . . . . . . : 2663xxxx
   DHCPv6 Client DUID. . . . . . . . : xxxxxxxxxxxx

   DNS Servers . . . . . . . . . . . : 208.67.222.222
                                       208.67.220.220
   NetBIOS over Tcpip. . . . . . . . : Enabled

IP Configuration

Spoiler

*i.imgur.com/tQJPWaM.png

IP Changes once in a while, like when the line goes down in the area.
Gate way is : xxx.xxx.120.1 (constant, has not changed till [strike]not[/strike]now)
Subnet mask : 255.255.248.0

 

[Ascendant001]

i am guessing DHCP is also enabled in hathway mode.it is recommended to use DHCP only in one device in such type of setups.disable dhcp in netgear & assign a static IP(e.g. 192.168.1.200) in your pc lan settings & then see if it helps.also in the 1st pic you posted what does the screen look like after you release & renew the dhcp.

 

[RCuber]

i am guessing DHCP is also enabled in hathway mode.it is recommended to use DHCP only in one device in such type of setups.disable dhcp in netgear & assign a static IP(e.g. 192.168.1.200) in your pc lan settings & then see if it helps.also in the 1st pic you posted what does the screen look like after you release & renew the dhcp.

This was actually set up by the hathway guy. he said to release and renew the DHCP settings like I had mentioned in the OP.
there are too many devices in my house which uses internet (10 devices to be exact) thats the reason I am using DHCP.

once I get renew the DHCP settings its something like this (as mentioned in my previous post) , setup page is same as before i.e., it doesn't change.

IP Changes once in a while, like when the line goes down in the area.
Gate way is : xxx.xxx.120.1 (constant, has not changed till now)
Subnet mask : 255.255.248.0

*i.imgur.com/82lMoRi.png

as you must recall I had asked for a new router in other thread. I am still looking for it.

 

[Ascendant001]

i meant use DHCP in one device only:hathway or netgear,not both.