D-Link Forums
The Graveyard - Products No Longer Supported => Routers / COVR => DIR-655 => Topic started by: realmc on June 30, 2013, 08:01:57 AM
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Bought DIR-655 several years ago, but put it aside after limited use due to poor range & dropped connections. Since several years have elapsed, I don't recall if I ever determined the cause of those past problems. Now I am trying to use this router once again and have configured using the furnished setup CD. Problem: I have a network connection, but no internet access when using the 655 with wired or wireless connections.
HW A4
FW 1.21
Located in Virginia
Using wired and wireless connection
No FW updates attempted
DSL connection
Modem is Zhone Model 1511-A1-NA
Wired connection is Windows 8 Desktop
Wireless connection is Windows 7 Laptop
Have updated network adapters, checked cables, disabled firewall & av, and both computers connect fine when connected direct to modem.
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Run thu this and see if it helps an post your answers so we can get a better idea of the situation and results:
http://forums.dlink.com/index.php?topic=54498.0 (http://forums.dlink.com/index.php?topic=54498.0)
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Have tried various of the tips from the troubleshooting guide, but nothing has worked so far. The ISP tested connection and found the router is not acquiring a new IP address when rebooted. Suggestions?
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http://www.zhone.com/products/1511-A1/ (http://www.zhone.com/products/1511-A1/)
- If this 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 (http://www.practicallynetworked.com/networking/fixing_double_nat.htm) and How NAT Works (http://cognitiveanomalies.com/cisco-nat-how-nat-works/). 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.
- 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)
- For DSL/PPPoE connections on the router, ensure that "Always ON" option is enabled.
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Furry, I haven't skipped out on you, just waiting on ISP to reply on MTU and bridging their modem. In the meantime I am going to check the DIR-655 on a friend's modem of a different manufacturer. I also have tried a Linksys SRX400 router (older G router) and it has sketchy connection as well. More later.
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Keep us posted. ;)
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Just talked to ISP tech and my modem's (Zhone 1511-A1) default setting out of the box is bridge mode and that hasn't been changed. He also confirmed the MTU requirement is 1500.
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You might ask the ISP if they have a different modem that you can try. Maybe something with out any built in router that has to be bridged.
Have them check the phone lines and make sure the lines are filtered correctly and set up well.
Have them check the PPPoE connection on the router if they are willing to do that. Should only need user account and password and set Always ON.
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Swapped out another modem with ISP, but no change. Also started from scratch and reset DIR-655 to factory defaults, then made the following changes:
1. Changed mode to mixed N&G
2. Reserved IP address for laptop
3. Disabled Traffic Shaping
4. Changed NAT End Point Filtering for UDP and TCP to End Point Independent.
Have tried other combinations and the problem is not resolved. Both computers running Chrome and I'll try changing the suggested Chrome settings next.
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What is the status say under Status/Device Info/Wan Section when the 655 is connected to your ISP modem? There should be WAN IP, Gateway and DNS IP addresses listed here.
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No addresses shown for WAN, Gateway, or DNS
Also, altering the Chrome settings didn't help.
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What is the model # and Mfr of the new modem? It have built in router or it a stand alone modem?
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It was a Zhone modem, model number 6211 (I have returned it). This model is also routing capable. I used this same model modem several years ago when I first bought the 655 and it did work with this model modem, but not well. I put the 655 aside and used a Linksys 400 (G) and it worked fine for a couple years until recently and it started dropping signal and finally lost internet connection all together. Similar to the problem with the 655. Does that history provide any clues?
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Wonder if there is a ISP HW issue between that and your routers and something environment related as well.
So your back to the original ISP modem right? If so, can you unbridge the ISP modem and see if this modem as DMZ option? If it does we could try putting the IP address it gets from the ISP modem into the DMZ on the modem to see if you can get Internet. Possibly turn the 655 in a wired AP could be an option.
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I suppose there could be a hardware conflict. Monday I hope to get the ISP tech to check my connection and settings for clues as to why the router is not acquiring IP addresses. I will ask about unbridging and going the DMZ route. This is a small local ISP that partners with Ntelos.
As for an environmental issue, our cordless phones are the only other radio device in our house and I have tested, but not shown improvement when disabling the phones. No garage door opener, no significant metal structural components, etc. House is a three story and 3,000 sq ft, but while working on this problem the modem, router, and laptop are on same desk. Environmental probably not a significant factor.
Thanks for the help and I hope to have more info on Monday.
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Keep us posted. ;)
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ISP not getting back to me. Probably hoping me and my problem will go away (which I won't).
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I've been experiencing the same problem, i.e., can't access particular or all websites for all machines and devices connected to the network, persisting even with a reboot of both the modem and the router, and resolved with a factory reset of the router.
Currently using the latest firmware (2.05) for hardware version B1 and made sure that the router date and time is correct (due to the factory reset). Disabled QoS for now (WISH is disabled because wi-fi is turned off) and will see what happens. I'm not sure if I should leave it on and disable the automatic uplink, though.
Edit 1: disabled the automatic uplink only because some web access slows down without QoS. Also, I set everything in the firewall to endpoint independent and enabled multicast streams.
Edit 2: Problems persist, although a website could not be accessed momentarily. I think it's the automatic uplink option.
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Internet Service Provider and Modem Configurations
- What ISP Service do you have? Cable or DSL?
- What ISP Modem Mfr. and model # do you have?
- What region are you located?
- Are you wired or wireless connected to the router?
- Has a Factory Reset been performed?
I've been experiencing the same problem, i.e., can't access particular or all websites for all machines and devices connected to the network, persisting even with a reboot of both the modem and the router, and resolved with a factory reset of the router.
Currently using the latest firmware (2.05) for hardware version B1 and made sure that the router date and time is correct (due to the factory reset). Disabled QoS for now (WISH is disabled because wi-fi is turned off) and will see what happens. I'm not sure if I should leave it on and disable the automatic uplink, though.
Edit 1: disabled the automatic uplink only because some web access slows down without QoS. Also, I set everything in the firewall to endpoint independent and enabled multicast streams.
Edit 2: Problems persist, although a website could not be accessed momentarily. I think it's the automatic uplink option.
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Sorry to both you, FurryNutz, but I was able to solve the problem by disabling automatic uplink in QoS.
FWIW, the automatic uplink has a maximum of 2048 kbps and the ISP I subscribe to gives more than 3,000, so I just set the uplink manually to the max.
Finally, it's a problem that's probably dependent on region, ISP service, etc.
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Seen some problems with these routers on some ISPs with UPLinks over 2Mb. Yes, disabling Traffic Shaping or QoS resolves this.
Enjoy.
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Ok, it just happened again a few minutes ago, but I think it's the ISP. When I visit Google or Facebook, I only get a "sending request" message in the status bar of Chrome, but some other sites can still be accessed, and the torrents continue to run. I cmd and run "ping www.facebook.com" and see nothing wrong. Finally, I go to the router, select "DCHP release" followed by "DHCP renew," and the problem disappears.
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What ISP Service do you have? Cable or DSL?
What ISP Modem Mfr. and model # do you have?
What region are you located?
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Using DSL fiber optic, modem says GPON ONU, region is Asia.
Disabled DNS relay and unicasting. Will see what happens.
Edit: The problem took place again. I put back the DNS relay because I think it's needed but kept unicasting disabled as the help file says it's the default.
Right now, I have to release and renew the DHCP, although one time that didn't work so I had to reboot the router. At least I no longer have to factory reset it.
Finally, the workstations use static IP addresses which are reserved by the router to avoid IP address conflicts. I originally did this because I thought the QoS would have to be set manually. I might set all devices to auto-assign to see what happens.
Edit 2: Removed all static IP addresses and disabled QoS but I'm still experiencing the problem right now. FWIW, I noticed that I have no access to Facebook or Google using any machine connected to the system but all other websites are accessible. The ping results to both sites look normal.
As I write this, access to both sites have returned. I don't think this is a problem with the router, so I'll call the ISP.
Thanks for the help.
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Ok, keep us posted.
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FurryNutz, have been waiting for ISP help person to return from vacation. In the meantime, attempted to create a network on another modem (Embarq 660) using the same laptop and Quick Start disk. Installation seemed to go OK until final network configuration step and it hung and did not complete - no internet connection established. I had that same experience with my Zhone modem using the Quick Start disk and was only able to create a network with manual setup. Even that took several attempts as the network connection was dropped several times during configuration.
The only thing I haven't done is update the FW. Will try that tonight.
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Don't use the CD or disk to set the router up, either use the on-board wizard or manually go in to Setup/Internet/Manual/Connection Type as set it there. Easier if you do it this way. For most connections DHCP is only needed unless you get a static IP address information or you use PPPoE for DSL.
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I used the startup disk in the past because I could complete the router configuration before the connection was dropped. Now nothing seems to work. I can login to the router and no matter if I choose the wizard or manual setup, no internet connection will be established and the router connection will drop soon after starting the configuration.
FurryNutz I appreciate your help, but I think this router was faulty from the start and it's time for me to move on and stop wasting your time.
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Maybe so. Hope you can find something that works then.
I used the startup disk in the past because I could complete the router configuration before the connection was dropped. Now nothing seems to work. I can login to the router and no matter if I choose the wizard or manual setup, no internet connection will be established and the router connection will drop soon after starting the configuration.
FurryNutz I appreciate your help, but I think this router was faulty from the start and it's time for me to move on and stop wasting your time.
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Nothing seems to be wrong with the ISP, so I experimented using a spare router, and I think the problem has disappeared. I have another problem, though, but it has to do with connected hardware. I'll look for a section where I can post it.
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Wondering if there is some compatibility issue with the 655 and your ISP modem.
Nothing seems to be wrong with the ISP, so I experimented using a spare router, and I think the problem has disappeared. I have another problem, though, but it has to do with connected hardware. I'll look for a section where I can post it.
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I think my problem began when I upgraded the firmware to the latest (2.05) two weeks ago. I downgraded to 2.01 last night, and I haven't experienced any problems so far.
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Glad it's working better for you now. I guess keep that loaded for now.