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Author Topic: Router stops functioning when connected to modem  (Read 4780 times)

akattom

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Router stops functioning when connected to modem
« on: March 23, 2014, 08:59:58 AM »

Hello all. I recently bought a DIR-600 D-link router. I was able to configure everything just fine with my samsung s4 browser as I dont have a functioning laptop or pc at the moment. I was able to browse around until I decided to turn both modem and routers off to go take a nap. I woke up after a few hours and decided that I need the internet connection so I turned both back on. The problem is I am now unable to connect to the internet, even to open 192.168.0.1 to see if i can fix certain configurations, my browser wont open the page.

I tried hard resetting by pressing the button behind the router, still dont work. I also tried resetting both modem and router several times, waiting for 30 seconds, even a full 10 minutes before turning them back on, still nothing. I did notice however that my s4 can detect the router and even connect to it. Also I am able to access 192.186.0.1 only if the modem is not connected to the router. I tried connecting the modem to a borrowed laptop to check if it was my isp who was the problem, but the internet was fine. I was able to browse around and download at regupar speed.

It seem that the problem here is my router cannot connect to the internet even though my s4 can connect and detect it via wifi. Please help. I need to know of there is something I can do to fix this or should I just return/replace the router.
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FurryNutz

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Re: Router stops functioning when connected to modem
« Reply #1 on: March 23, 2014, 11:47:23 AM »

Link>Welcome!

  • What Hardware version is your router? Look at sticker under router.
  • Link>What Firmware version is currently loaded? Found on the routers web page under status.
  • What region are you located?
  • Are you wired or wireless connected to the router?
  • Has a Factory Reset been performed?



Internet Service Provider and Modem Configurations
  • What ISP Service do you have? Cable or DSL?
  • What ISP Modem Mfr. and model # do you have?
  • Is ISP Modem/Service using Dynamic or Static WAN IP addressing?
  • What ISP Modem service link speeds UP and Down do you have?
  • Check cable between Modem and Router, swap out to be sure. Link> Cat6 is recommended.
  • Check ISP MTU requirements, Cable is usually 1500, DSL is around 1492 down to 1472. Call the ISP and ask. Link>Checking MTU Values
  • For DSL/PPPoE connections on the router, ensure that "Always ON" option is enabled.

Router and Wired Configurations
Some things to try: - Log into the routers web page at 192.168.0.1. Use IE, Opera or FF to manage the router. Besure to log into the Admin account on the router.
  • Turn off ALL QoS or Disable Traffic Shaping (DIR only) GameFuel (DGL only and if ON.) options, Advanced/QoS
  • Enable Use Unicasting (compatibility for some ISP DHCP Servers) under Setup/Internet/Manual.
  • Setup DHCP reserved IP addresses for all devices ON the router. Setup/Networking. This ensures each devices gets its own IP address when turned on and connected, eliminates IP address conflicts and helps in troubleshooting and maintain consistency for applications that need to connect as well as mapped drives.
  • Ensure devices are set to auto obtain an IP address.
  • If IPv6 is an option on the router, select Local Connection Only or Disable IPv6 options under Setup/IPv6.
  • Set Firewall settings to Endpoint Independent for TCP and UDP under Advanced/Firewall. Enable or Disable SPI to test.
  • Enable uPnP and Multi-cast Streaming under Advanced/Networking.
  • WAN Port Speed set to Auto or specific speed? Some newer ISP modems support 1000Mb so manually setting to Gb speeds can be supported by the router. Try setting 100Mb or 10Mb as test. Advanced/Advanced Networking/WAN Port Speed
  • Set current Time Zone, Date and Time. Use an NTP Server feature. Tools/Time.


Wireless Configurations
Links>Wireless Installation Considerations and Managing Signal Congestion and Good Neighbour Policy
  • Ensure the default (dlink) SSID name is changed. Can be anything and not something that's already in use by any neighboring WiFi routers. Under Setup/Wireless/Manual.
  • What wireless modes are you using?
  • 2.4Ghz Routers only: Try single mode G or N or mixed G and N?
  • Channel Width set for Auto 20/40Mhz or try 20Mhz only.
  • Try setting a manual Channel to a open or unused channel. 1, 6 or 11. 11 for single mode N if the channel is clear.
  • What security mode are you using? Preferred security is WPA-Personal. WPA2/AES Only. Some WiFi adapters don't support AES, so you might want to try TPIK only or Auto TPIK and AES.
  • What wireless devices do you have connected?
  • Any 2.4Ghz or 5Ghz cordless house phones or WiFi APs near by?
  • Any other WiFi routers in the area? Link> Use InSSIDer to find out. How many?[/b]
  • If you have any of these options, Try turning OFF or ON Short GI, WLAN Partition, Extra Wireless Protection and HT 20/40 Co-existence if you have it. Also testing with HT20/40Mhz Co-existence enabled will impact results as well. I prefer to use this option OFF. Recommended settings are default. Under Advanced/Advanced Wireless.

Router Placement
Forum User - "Well I feel really dumb. After moving the router away from other electronic devices my speeds are back to normal. Just a heads up for anyone experiencing slow speeds, you might want to move it away from other electronics and see if that helps."
6" minimum safe distance between devices.
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Cable: 1Gb/50Mb>NetGear CM1200>DIR-882>HP 24pt Gb Switch. COVR-1202/2202/3902,DIR-2660/80,3xDGL-4500s,DIR-LX1870,857,835,827,815,890L,880L,868L,836L,810L,685,657,3x655s,645,628,601,DNR-202L,DNS-345,DCS-933L,936L,960L and 8000LH.

akattom

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Re: Router stops functioning when connected to modem
« Reply #2 on: March 24, 2014, 04:39:58 PM »

Thanks for the reply FurryNutz. I have made the adjustments you suggested above. Unfortunately none of them work. I did however fix the problem from random googling. It seem my device(samsung s4) had the same ip adress as the router (I wonder how that happened) and changing my router's ip adress (from default 192.168.0.1 to 192.168.2.1) allowed my device to connect and access the internet. The problem however is that the speed is very slow. I guess it should suffice for now as I really dont need to stream heavy videos or whatever. Any tips would really be helpful. For the topic at hand, it can be considered resolved.




edit: typos
« Last Edit: March 24, 2014, 04:41:32 PM by akattom »
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FurryNutz

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Re: Router stops functioning when connected to modem
« Reply #3 on: March 24, 2014, 05:22:12 PM »

If you could fill in the questions that are presented, will help us get a better idea of your situation so we can give you better feed back.
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Cable: 1Gb/50Mb>NetGear CM1200>DIR-882>HP 24pt Gb Switch. COVR-1202/2202/3902,DIR-2660/80,3xDGL-4500s,DIR-LX1870,857,835,827,815,890L,880L,868L,836L,810L,685,657,3x655s,645,628,601,DNR-202L,DNS-345,DCS-933L,936L,960L and 8000LH.