Member Avatar for Teresa_O

I'm somewhat savvy, but this has me stumped. Hopefully it's something simple that I'm just overlooking.
ISP gave me a static IP. When I plug directly into my modem and assign the static IP (and all other settings) to my computer, I can access the internet, no problem.
I then switch my computer to dhcp. plug cable into router. configure router with static IP and etc. as given by ISP. Do not broadcast SSID. make sure dhcp is enabled so it'll serve me up some ip addies. With computer plugged into router -- i can not access the internet. With wireless, same thing (as you'd expect) although it can at least talk to the router.
I've also tried assigning the router the IP address, to no avail. I've flashed the firmware on the router. I can't imagine what else to do (although the thought of mauling it with a sledge-hammer has a certain appeal). Any suggestions would be greatly appreciated. Like I say, hopefully it's just some dumb thing I'm overlooking.

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Short, practical checklist and diagnostics for a BEFW11S4 when a static IP works on a PC attached to the modem but not through the router (situation described by ).

Start by confirming where the ISP values go: the public IP, subnet mask, gateway and DNS belong in the router’s Internet/WAN (not the LAN) settings. The router’s LAN address must be a private subnet (for example 192.168.1.1/24) and its DHCP range must hand out addresses from that private subnet. Make sure the modem cable is in the router’s Internet/WAN jack (not a LAN port) and verify the router’s Status page shows the ISP-assigned WAN address.

Quick, repeatable tests (use a wired PC for each step):

1) Connect PC directly to modem, run: ipconfig /all   -> copy IP, mask, gateway, DNS.
2) Enter those exact values into the router’s Internet/WAN -> save.
3) Connect PC to a router LAN port and set PC to DHCP -> ipconfig /renew.
4) From PC run:
   ping 192.168.1.1       # router LAN
   ping <ISP gateway>     # tests router->ISP route
   ping 8.8.8.8           # tests raw Internet reachability
   nslookup google.com    # tests DNS

Interpretation: if ping 8.8.8.8 works but nslookup fails, it’s DNS. If ping to the gateway fails, WAN is misconfigured or the modem isn’t accepting the router.

Other likely causes and tips: if the modem “remembers” a previous device, either power-cycle the modem after you attach the router or use the router’s MAC-clone feature; check whether the ISP handed you a routed block (/29 etc.) and enter the correct mask and gateway; confirm NAT is enabled on the router (so LAN addresses are translated to the public IP). ’s emphasis on methodical wired testing is the right approach; ’s MAC-lock note is relevant; contrary to , public static IPs are not limited to 10.x private space — use the exact ISP-provided values. If the WAN field never shows the ISP IP after these checks, post the router Status output (mask/gateway shown) and a copy of the modem’s status for further diagnosis.

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Member Avatar for chrisbliss18

Are you doing the following?

  • Set the router to use the static IP
  • Connect the computer to the router via a CAT5 cable
  • Set the computer to automatically get an IP address rather than assigning one manually
  • Turn everything off
  • Power on the modem, then the router, and then the computer

I'm guessing that you are still leaving the manual IP setting on your network connection configuration which is the main source of your woes.

In figuring out network issues, start simple and then get more complex. First confirm that your computer can connect directly through the modem (sounds like you are able to do this). Then add the router and use a direct connection to the router with a cable (this checks to make sure that everything is connecting and communicating correctly without adding the problems of troubleshooting a wireless connection). When the system is connecting through the router, remove the cable, and try to get the router and computer communicating wirelessly.

Member Avatar for extofer

Two things,
static IPs should only be in the two digit mask ~255
also make sure you not only use the router IP as the Gateway but as the DNS as well

Member Avatar for zypergil

gud morning sir...
how to connect my static ip in may router,i connect may dns it is ok,and connect me my gateway it is ok then....and we cannot ping my static,pls answer sir my problem..tnx!

commented: Don't revive and hijack a zombie thread. REad the forum rules first -1
Member Avatar for tje210

reset your modem. they save the MAC address of the device they're connected to, so whenever you change that device, it needs to be reset.

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