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The Graveyard - Products No Longer Supported => Routers / COVR => DIR-826L => Topic started by: Andy B on May 13, 2015, 04:38:42 PM

Title: new modem and now router isn't connecting
Post by: Andy B on May 13, 2015, 04:38:42 PM

My Timewarner cable was shut off accidentally yesterday. They restored my internet connection today and replaced my old modem with a new one.  Now my router isn't working - I can't connect any devices to it.  The power and globe lights are a steady green.  On my laptop I see that I my airport connection is logged into my wireless network.   I tried a RESET twice but that has not helped.  My iPhone and iPad are also not connecting so I must be the router and not just my laptop.

Any ideas on what to try?

Thanks,
Andy

Title: Re: new modem and now router isn't connecting
Post by: FurryNutz on May 14, 2015, 07:15:25 AM

Link>Welcome! (http://forums.dlink.com/index.php?topic=48135.0)

• What Hardware version is your router? Look at sticker under the router case.
• Link>What Firmware (http://forums.dlink.com/index.php?topic=47512.0) version is currently loaded? Found on the routers web page under status.
• What region are you located?

Did you power cycle the router after the new modem was installed?

Internet Service Provider and Modem Configurations

• What ISP Modem Mfr. and model # do you have?
• Is ISP Modem/Service using Dynamic DHCP or Static WAN IP addressing?
• What ISP Modem service link speeds UP and Down do you have? Link> Speed Testing Sites (http://forums.dlink.com/index.php?topic=48352.0)
• By-pass the main host router and check internet connection by connecting a wired LAN PC directly to the ISP modem to verify connection access and ISP speeds.
• Check cable between Modem and Router, swap out to be sure. Link> Cat6 is recommended. (http://en.wikipedia.org/wiki/CAT6)
• Check ISP MTU requirements, Cable is usually 1500, DSL is around 1492 down to 1472. Call the ISP and ask. Link>Checking MTU Values (http://forums.dlink.com/index.php?topic=53008.0)

I recommend that you have your ISP check the cabling going to the ISP modem, check signal levels going to the ISP modem. For DSL or Fiber service lines, ensure that the ISP is using good working phone or cable lines to the DSL modem and that the phone lines are filtered correctly. For cable Internet, RG-6 coaxial cable is needed, not RG-59. Check for t.v. line splitters and remove them as they can introduce noise on the line and lower the signal going to the ISP modem. I recommend having the ISP service physically check the lines going from the out side to the ISP modem. Connecting to the ISP modem could result in a false positive as the signal to the modem could be just enough to that point then adding on a router, could see problems. The router operation is dependent upon getting good data flow from the ISP modem and the modem is dependent upon getting good signal from the ISP Service.