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Author Topic: Dir655 needs reset several times a day  (Read 3775 times)


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Dir655 needs reset several times a day
« on: July 05, 2015, 02:26:54 AM »

Since several months I have been experiencing an issue with several devices in my home: suddenly internet connection is gone.
I have this on wired PCs wireless tablets,laptops and phones. I used to switch off all the network devices and reboot them (modem switch router), which resulted in restored Internet. A few weeks ago, I had an ISP technician come by and check out their modem, switch, amplifier, cable and my PCs. He found the modem, switch, amplifier to be old enough to be replaced, so all of those are brand new now. Tests of the incoming coax cable showing something off, and additional tests were done outside my house on the hub that links to my home, upon which some issue was found about weak signal sometimes, and they said they fixed it.so far so good, if it not were so that I see the issue of loosing Internet on my PCs and tablet etc repeat...

So, this left with only 1 device not having been renewed, the dir 655.
Since several weeks I unplug the dir655 when the issue occurs, which restores Internet connection, but I find myself doing this like 5 days yesterday.

This morning I tried logging on to the router page from the very phone which lost Internet connection.
This worked. The router showed it still had Internet connection...
The logs showed several refused Mac addresses, all unknown to me.

The question: it looks like my Mac filtering has gone bezerk, can it be that the known devices in my home start showing to the router with wrong Mac addresses??


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Re: Dir655 needs reset several times a day
« Reply #1 on: July 05, 2015, 02:29:52 AM »

Update info: I rebooted the router from its webpage, which restores Internet connection.

Above question remains open, if so what's the solution?



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    • Router Troubleshooting
Re: Dir655 needs reset several times a day
« Reply #2 on: August 06, 2015, 06:38:51 AM »


  • What Hardware version is your router? Look at sticker under the router case.
  • Link>What Firmware version is currently loaded? Found on the routers web page under status.
  • Are you wired or wireless connected to the router?
  • Has a Factory Reset been performed?
  • Was a Factory Reset performed before and after any firmware updates then set up from scratch?
  Link> >FW Update Process

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? Link> Speed Testing Sites
  • 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.
  • 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.
  • If the ISP modem has a built in router, it's best to bridge the modem. Having 2 routers on the same line can cause connection problems: Link>Double NAT and How NAT Works. Call the ISP and ask to see if the ISP modem can be bridged. To tell if the modem is bridged or not, look at the routers web page, Status/Device Info/Wan Section, if there is a 192.168.0.# address in the WAN IP address field, then the modem is not bridged. If the modem can't be bridged then see if the modem has a DMZ option and input the IP address the router gets from the modem and put that into the modems DMZ. Also check the routers DHCP IP address maybe conflicting with the ISP modems IP address of Check to see if this is the same on the ISP modem, and if modem can't be bridged, change the DIR router to or .0.254.
    Example of a D-Link router configured for PPPoE with ISP Modem bridged: PPPoE Configuration on a Router

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.
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.