Question about D-Link DIR-300 Wireless Router

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I have 1 modem and 3 wireless router and 2 switches, the modem connect to the first router then the router connect to the switch. the two router connect to the switch and also the other switch connect to the 1st switch. i have more than 20 PC's all of this are connected to the two switches. my problem is my internet connection always turn off and on. but when i connect the modem directly to the PC it works fine.... Please help...

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If you have same router their IP must be conflicting with each other and may be with modem also.

Make sure you do not have any conflicting IP in your network to avoid network collision and it will not create any problem

your both router might have IP as 192.168.1.1 and may be your modem also.

Posted on Sep 30, 2009

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Posted on Jan 02, 2017

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This can be caused by a number of issues most have to do with the router itself and not the tablet. First, let's make sure the router DHCP Server is not frozen so take the following steps:
Step 1: If the router is separate from the Cable or DSL Modem, power down the router/wireless, next power down the cable/dsl modem. Power up the cable/dsl modem wait 60 seconds then power up the router/wireless wait 2 minutes
Step 2: Try to connect to the wireless
Step 3: If you have a modem or wireless router supplied by Comcast, Verizon, AT&T or any major carrier, contact them asking them to walk you through resetting and rebooting and updating the firmware to the router/wireless.
Step 4: After the reset and update try to connect, if it fails move on
Step 5: Log into the wireless/modem - let's change the wireless encryption. Go to the wireless settings, change the wireless settings to WPA Personal and add any pass-phrase. Try to connect using the new pass-phrase.
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Hi,
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1. Please ensure your wireless connection is switched ON
2. Your wireless router should be working in bridge mode.
3. Connect the ethernet port of the wireless Router to the Modem and then try accessing.

Best regards

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Were installing wireless internet at home and we received a error 651 error with dns and/or communication. he has the cable modem connected to a gigabit switch which is then connected to the wireless g...


1. This error is related to the dialup modem
you will need to disable the dialup modem.
When setting up your router for the lan in the browser you will need to select "internet connect that is always on"
DNS should be on "automatically assign.
yes you can connect a switch to the router and the router will assign each port an IP address automatically.
If you are using the router wirelessly you will need to assign each device that is wireless via the MAC (Media Access Contro) number.
Check you router manual for details on how to set each device in the router by MAC address.
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1. If you have a modem, connect the modem to the router(make sure modem should be connected to the port on which LAN, Internet, WAN is mentioned. It would be a separate one port on the router) and router to the computer.
2. Insert the disk that came with the router, inside the computer.
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Switch off power to the modem, router and computer. Now switch on the modem first and let all lights on it to be stable.. Then switch on the router and let all lights on the router become stable. Once the lights on router are all stable, switch on the computer and then try to accerss sites.

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chack your DSL settings may your not conacted with your sevice provider

chack your locale settings in modem try folowing setups

1. If you have a modem, connect the modem to the router(make sure modem should be connected to the port on which LAN, Internet, WAN is mentioned. It would be a separate one port on the router) and router to the computer.
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(It worked for me for WR850G, when I had a similar issue. However, don't know how your connection is setup.)

1. Switch-off the ISP modem that connects to the router
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Regards,
Warija

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