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3Com 3CRWER100-75 does not change IP and disable dhcp server

So, Ive been trying to change that ip to 192.168.0.1 and disable dhcp server . So i saved the changes. After the reboot, thinking my changes were made, my computer stills get ip from CRWER100-75.

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Posted on Jan 02, 2017

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SOURCE: Trying to enable IP Sec on 3 com router

  • Default Username / UserID: admin (lowercase only, or try leaving it blank)
  • Default Password: admin (lowercase only, or try leaving it blank)
  • Default IP Address: 192.168.1.1 or try or try 192.168.2.1
  • and go to to wire less>and search for VPN and there u have these option>and rate me solved if its helps thx

    Posted on Nov 25, 2007

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    SOURCE: port forwarding

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    Posted on Nov 27, 2008

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    SOURCE: 3CRWER100-75 no DHCP IP on child routers

    router 1 (base) router 2 (repeater) router 1 (base) is the network, the SSID is where u get your internet connection set router 2 with same SSID, DHCP on. i advise connecting hardline to make sure both routers are working correctly. once thats verified then go wifi

    Posted on Feb 04, 2009

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    Why Addresses in the IP Address Pool on a Switch Are Exhausted When the Switch Functions as a DHCP Server and It Has a Few Clients?


    If the IP address pool has much more resources than needs of clients, the following two reasons may cause address exhaustion:
    1. An attacker keeps changing the CHADDR field and sending DHCP Discover packets to exhaust addresses. If so, contact Huawei engineers to deploy DHCP snooping to protect the IP address pool.
    2. The DHCP server ping function is enabled on the DHCP server. This function tries to ping the allocated addresses before responding to DHCP Offer packets. If a client responds to any ping packet, the DHCP server considers that there are address conflicts and addresses are exhausted. To solve this problem, two methods are available:
    1. Capture packets on the ports connected to the DHCP server. If a client responds to ping packets, prohibit the client.
    2. Disable the DHCP server ping function using the undo dhcp server ping packet command.
    3. Such as S5700, S6700

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    Configuring a 3COM 3CRWDR200A-75 router as a repeater


    SETTING A ROUTER AS A REPEATER 1. Connect your computer to the repeater router's RJ45 port with a LAN cable. 2. Open a browser, then enter the router's URL configuration's IP address, This is usually something similar to 192.168.0.1 3. Enter the configuration user name and password. The router will display the various router settings. 4. Go to the page that changes the IP address of the router. Changed the IP address so that it is not the same as the main router on the network, or any other network devices. If the main router on the network is set to 192.168.1.1 then the repeater router should use a higher number (ie. 10), such as 192.168.1.10 or higher, depending on how many devices are on your network. 5. Disable the repeater router's DHCP server. This setting should be on the same page as the IP address, (this may be different depending on the make of the router). When the main router is operating normally, this server assigns an IP address to every device that is connected to your network. Because this router is used as a repeater, the main router on your network will still issue the IP addresses. 6. Also turn off the DNS server, if it is activated. This function will be taken over by the main router. 7. Disable any firewall settings on the repeater router. This is usually in the "Security" section, depending on the make and model of your router. 8. Remove all in the "Port Forwarding" section. Some routers may refer to this as "Applications and Gaming," and it allows less-restricted access to the internet. 9. Set the operating mode switch to "Gateway" or "Switch" if applicable. Also, if the repeater router is a wireless router then disable the wireless access or set it to access point only. 10. Save the settings for each page, and reboot the router. When the router boots up, the changes will allow it to act as a simple repeater. 11. Now, place the repeater router in a new location and connect both routers with a Ethernet cable in each of the router's RJ45 LAN ports, and power it up both routers.

    Nov 17, 2012 | 3Com OfficeConnect® (3CRWDR200A-75) Router...

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    Im tryig to piggyback my wrt54g router to another part of the house. I have a cable coming from my linksys e1000 n router which is my main router. When i plug the cable into the 54g i can access the router...


    What is the IP address of the E1000 router ?
    If the IP address of E1000 router is 192.168.1.1, Then change the IP address of WRT54G router to 192.168.1.2. Connect the Ethernet cable from the Ethernet port of E1000 router to the Ethernet port of WRT54G router ( port 1 of E1000 to port 1 of WRT54g). Disable the DHCP server.

    You can do it in a different way also.
    If the IP address of E1000 is 192.168.1.1. then change the IP address of the WRT54g to 192.168.2.1. Do not disable the DHCP server of the WRT54G. Connect the E1000 to the Internet port of WRT54G.

    Click Here to know more about router and network

    Sep 03, 2010 | Linksys Wireless-G WRT54G Router

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    I have a yellow machine p400t and i need to give it a static IP address and do this through a linksys router. how do i go about this? do i need to attach it to a computer?


    Yes, it must be attached to the network 0. Install the yellow machine software on the PC 1.Log on to the Yellow Machine Manager. Go to “Logging On To Yellow Machine Manager” on page 8. 2.From the Yellow Machine Manager, click Network > Network Interfaces. The Network Interfaces window appears. 3.Click Edit. 4.Select Yes to Enable LAN Interface. Default: Yes (Enabled) • If you select No, all other LAN option fields are blocked. • If you disable the LAN Interface, the only access to the Yellow Machine appliance is through the WAN port. Anthology Solutions does not recommend this configuration. 5.Check Enable DHCP Service if the DHCP service is needed for the PCs attached to the Yellow Machine appliance’s LAN ports. This setting makes the Yellow Machine appliance the DHCP server for your LAN (or sub-network), providing IP addresses dynamically for the clients connected to the LAN ports. Default: Checked (Disabled) 6.Select either Obtain IP Address Automatically from DHCP Server, or Static IP Address. Default: Static IP Address • Choose Obtain IP Address Automatically from DHCP Server if your Yellow Machine appliance connects to either a router that has DHCP service enabled or to a cable modem. This setting makes the Yellow Machine appliance a DHCP client on your network. • Obtain IP Address from ADSL provider is greyed out. • Choose Static IP Address if your network is locally defined and controlled and does not use DHCP services. Type the IP address manually. 7.Specify IP address and Subnet mask if you selected a Static IP Address, and click Apply. 8.Click Yes to confirm, No to abort. The changes takes affect within five seconds after the network interface change notice appears.

    Jan 26, 2010 | Anthology Solutions Yellow Machine P400T...

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    "Couldn't contact DHCP" error


    Check on the router if you are distributing enough IP addresses.

    Jul 30, 2009 | Polycom SoundPoint

    1 Answer

    Does it work verizon wireless un175 usb on dir-450?>


    yes...you must change the D Link IP address and disable the DHCP server...use the IP add within the range of verizon dhcp server..192.168.1.1 is your verizons IP..to chANGE your di link IP connect to Dlink wired and not connected to any routers...type 192.168.1.1 to access configuration menu and you can change the setting

    Apr 06, 2009 | D-Link DIR-450 Router (DIR450)

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    3CRWER100-75 no DHCP IP on child routers


    router 1 (base) router 2 (repeater) router 1 (base) is the network, the SSID is where u get your internet connection set router 2 with same SSID, DHCP on. i advise connecting hardline to make sure both routers are working correctly. once thats verified then go wifi

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    Router stops responding with red alert light turned on


    I had the same problem since a bought it last week and I was going crazy. Install this firmware and everything will work fine:
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    Oct 20, 2007 | 3Com OfficeConnect Wireless Router

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    Frequent wireless disconnections 802.1X WPA TKIP


    try using predefined IP addresses. Let each pc make it's own IP address and see if the conflicts continue, if they do, post again. :)

    Jan 25, 2007 | 3Com Wireless LAN Access Point 7250...

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    How do I configure DHCP server on my wireless router?


    Step 1 Open a web browser and type the IP address of the wireless router in the address bar (default is 192.168.0.1). Press Enter. Step 2 The default username is admin (all lower case) and the password is blank (nothing). Click OK. Step 3 Click on the Home tab and then click on DHCP to the left. Note: If you are connecting to a DHCP server, the DHCP server on the wireless router should be set to Disabled. Step 4 By default, DHCP Server is set to Enabled. To disable it, click the Disabled radio button. To enable it, click the Enabled radio button. Step 5 Enter the Starting IP Address and Ending IP Address. To change the lease time, select a value from the drop-down list next to Lease Time. Note: The value for Starting IP Address must be less than the value for Ending IP Address. Step 6 Click on Apply then click Continue to save the settings.

    Feb 16, 2006 | D-Link Express EtherNetwork DI-604 Router

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