Linksys BEFSR81 router or Win 7 problem?

xtraxtra

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Hello,
I searched the forum but could not find one that matches the issue I have. Here is the situation. I have a laptop with win7 professional wired to a linksys wired router (connected to cable modem). A linksys wireless router is also connected to the wired router but the dhcp is disabled. For 3 days, this setup worked fine. Today, after coming out of hibernation, the laptop lost connection to internet. I can ping the router and other devices except the gateway. I have tried releasing and renewing the IP and sometimes this works. In some cases, i have to restart the wired router. The laptop had no problem coming out of hibernation or sleep before. Any idea what might have cause this and how to rectify?

Thanks
 

My Computer

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Gateway NV7309U
OS
win 7 professional 64 bit
CPU
2GHz AMD Athlon X2 M300
Memory
4GB DDR2
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ATI Radeon™ HD 4200
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LED
I actually explained the situation with linksys support and they made no mention of it....twice. This is the second time it has happend to the same model. Linksys thinks that win7, somehow after coming our of hibernation breaks the router...no thoughts on how as it is just an theory. Linksys support asked me to do some tests to confirm that the router is now broken.
 

My Computer

Computer Manufacturer/Model Number
Gateway NV7309U
OS
win 7 professional 64 bit
CPU
2GHz AMD Athlon X2 M300
Memory
4GB DDR2
Graphics Card(s)
ATI Radeon™ HD 4200
Monitor(s) Displays
LED
I actually explained the situation with linksys support and they made no mention of it....twice. This is the second time it has happend to the same model. Linksys thinks that win7, somehow after coming our of hibernation breaks the router...no thoughts on how as it is just an theory. Linksys support asked me to do some tests to confirm that the router is now broken.
The issue as you have explained it means that a dual router set up using the same host means there is a conflict between the 2 routers trying to set up a dynamic address. Since both are attempting to set up an address from the IP, the ip cannot accomplish this. As Chev suggesyed, a switch will do this using only 1 router with as many PC's as you like. You will need straighthru cabling also.

Regards,
Adrian
 

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From the WAN port of the modem you connect to the wired router's internet port. Both the modem and the wired router should have DHCP enabled (the Modem is on your WAN side, and the wired router is on your LAN side). Your wireless router is plugged into one of the LAN ports of the first router no doubt and with DHCP disabled, you should not get any IP conflicts (you only have one laptop right, so where is the conflict?).

What is the IP of your wired router, this should be also the default gateway?
 
Last edited:

My Computer

Computer Manufacturer/Model Number
Lenovo ThinkPad T60
OS
Windows 7 Ultimate 64Bit
CPU
GenuineIntel Intel(R) Core(TM) DuoCore T2400 @ 1.83GHz
Motherboard
Intel(R) 82801G (ICH7 Family)
Memory
2.00 GB
Graphics Card(s)
Mobile Intel(R) 945 Express Chipset
Sound Card
SoundMAX Integrated Digital HD Audio
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ThinkPad Display
Screen Resolution
1400x1050
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100Gb SATA
Keyboard
Standard Keyboard
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HID-compliant Mouse
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Cable Broadband - 54Mbps
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Intel(R) PRO/1000 PL Network Connection
11a/b/g Wireless LAN Mini PCI Express Adapter
I guess I did not explain the setup well. Only the wired router has DHCP enabled. The wireless router has the DHCP disabled-yes it is wired to the wired router and picking up an IP.

aem better described this better than I did the first time - Thanks.

The IP of the wired router is picked up from the cable modem and yes it is the default gateway.

There was one more test done to confirm it was broken - the cable modem was connected to one of the LAN ports and the laptop was wired to the LAN ports as well. From this setup, the laptop picked up the IP directly from the cable modem bypassing the wired router. The tech suggested I try the 4 port wired router as it has the latest software so off I went to Tigerdirect. I have it now plugged in the same setup as before....fingers crossed.
 

My Computer

Computer Manufacturer/Model Number
Gateway NV7309U
OS
win 7 professional 64 bit
CPU
2GHz AMD Athlon X2 M300
Memory
4GB DDR2
Graphics Card(s)
ATI Radeon™ HD 4200
Monitor(s) Displays
LED
Sorry i missed typed, the modem WAN connection goes to the wired router's internet port. Use the LAN ports of the wireless router connected to one of the the LAN ports of the wired router (do not use the internet port of the wireless router to connect to the internet port of the wired router).
 

My Computer

Computer Manufacturer/Model Number
Lenovo ThinkPad T60
OS
Windows 7 Ultimate 64Bit
CPU
GenuineIntel Intel(R) Core(TM) DuoCore T2400 @ 1.83GHz
Motherboard
Intel(R) 82801G (ICH7 Family)
Memory
2.00 GB
Graphics Card(s)
Mobile Intel(R) 945 Express Chipset
Sound Card
SoundMAX Integrated Digital HD Audio
Monitor(s) Displays
ThinkPad Display
Screen Resolution
1400x1050
Hard Drives
100Gb SATA
Keyboard
Standard Keyboard
Mouse
HID-compliant Mouse
Internet Speed
Cable Broadband - 54Mbps
Other Info
Intel(R) PRO/1000 PL Network Connection
11a/b/g Wireless LAN Mini PCI Express Adapter
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