D-Link Forums
The Graveyard - Products No Longer Supported => Routers / COVR => DIR-636L => Topic started by: ghostdlr on January 30, 2016, 01:14:17 PM
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I have a PPPOE Cable connection .
There are no issues when I connect the cable it directly to my computer. But when I use the router , it randomly disconnects from the internet, at least 1 time each 10 minutes .
Also, I have a gigabit connection but the router limits it to 100 MB for some reason . If I manually set the WAN Port Speed to 1000 Mbps , it doesn't connect to the internet anymore .
I have the latest firmware installed .
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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?
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 (http://forums.dlink.com/index.php?topic=48352.0)
- 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)
- 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 (http://www.practicallynetworked.com/networking/fixing_double_nat.htm) and How NAT Works (http://computer.howstuffworks.com/nat.htm). 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 192.168.0.1. Check to see if this is the same on the ISP modem, and if modem can't be bridged, change the DIR router to 192.168.1.1 or .0.254.
Example of a D-Link router configured for PPPoE with ISP Modem bridged: PPPoE Configuration on a Router (http://forums.dlink.com/index.php?topic=56344.msg219023#msg219023)
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Model: Dir 636LA1
Current Firmware Version: 1.05 Date: 2015/02/24
I'm in Europe, Romania
I have cable, no modem.
My connection was suppose to be gigabit but the router is limiting it to 100 mb most of the time . If I connect the cable directly to my PC, I usually get over 50 MB/s download speeds . (I have 1 GB internet connection)
The router doesn't allow me to set 1500 MTU .
The are no issues with the cable .
I have PPPOE and Always on is enabled .
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Are you having problems with wireless disconnects?
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I don't think the wireless gets disconnected .
The router just drops the PPPOE connection :
Cable Status : Disconnected
It reconnects after 20-40 seconds .
Also, it has a really slow boot time ... sometimes the power led doesn't light up for minutes . I noticed this since I bought it but I didn't had any internet connection problems until a month ago .
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Possible cabling issue or compatibility issue between the WAN port on this router and your ISP service coming thru cable in the wall.
You would need to check with your ISP to see what they support as a connection rate coming from there router/switch in your building to your cable in the wall.
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I already called them 2 times . They couldn't find any issues .
If I connect the cable directly to my computer, it doesn't disconnect from the internet a single time .
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What is the connection rate you see on your PC when you connect to the ISP service with out the router being connected?
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When I connect the cable to my PC, I get 1000 MB connection .
But the biggest problems are the random disconnects . It happens at least 1-2 times in 10 minutes.
The router sometimes has 1GB link and there are no disconnect issues (it doesn't happen too often).
Most of the times the internet link is 100 MB and it keeps disconnecting . The guys from the Internet provider told me they are seeing my connection as 100 MB and I don't get more than 11 MB/sec download .
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Maybe a connection issue between the router and there service.
Can you test the router at a different location, like a friend for families place or a neighbor to see if the problem follows?
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When I called the internet provider, a guy came over and he said the router was causing this .
I could test it somewhere else or try with another router , but I'm not sure when i can do it .
Meanwhile, do you have any idea for a potential fix ?
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Only thing I would try is a new LAN cable between the router and wall out let.
Or manually reload the FW file again and set up from scratch with out loading a saved config from file.
Follow this: Link> >FW Update Process (http://forums.dlink.com/index.php?topic=42457.0)
IF after this is doesn't and if you try it at a different location and the problem follows, the router maybe faulty.
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I updated the firmware today .
The problem started a month ago . I used a firmware from 2012 until today .
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What are you connecting the router to? What is the ISP device?
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It's cable .... no device .
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It's cable .... no device .
What kind of "cable"? Who is your ISP? rcs-rds.ro?
Unless your ISP runs ethernet in the streets, there would have to be something that turns the ethernet wire you are connecting to the routers WAN port to what ever the ISP uses. It may not be in your room, but it has to be somewhere. If its RCS-RDS then you probably use fiber, so you would have a ONT (Optical Network Terminal). The question is if that ONT gives out a public or private IP. One way to find out is to connect your PC direct to the "cable" and check your IP from the CMD prompt (Windows Key + R > CMD > IPconfig)
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Yes, it's rcs-rds.ro . I get a dedicated public IP every time I connect through PPPOE .
(http://s16.postimg.org/oqbp4p7j9/image.png)
I also got this error first time I tried to connect (it never happened before).
(http://s17.postimg.org/d159zbh27/image.png)
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Yes, it's rcs-rds.ro . I get a dedicated public IP every time I connect through PPPOE .
(http://s16.postimg.org/oqbp4p7j9/image.png)
192.168.0.100 is not a public IP. It is a private IP. Is that connected to router or direct to wall? If wall, your ONT has NAT enabled. Is it also set to perform PPPoE for you? If so, perhaps there is a conflict with the PPPoE settings in the router. I would suggest contacting your ISP.
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It was connected to the wall . That's weird ...
Here it's connected to the router:
(http://s14.postimg.org/uf88djbxd/image.png)
What if I disable the router DHCP ?
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I disabled DHCP but I still get 192.168.0.100 IP . The network card is set to obtain an IP automatically .
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It was connected to the wall . That's weird ...
Interesting, notice you get the same IP from the ONT and the router. As I understand it, the ONT is giving a 192.168.0.100 but then through PPPoE, you acquire the public 79.118.x.x.
If you connect direct to the wall, and disable the PPPoE, can you still get online? Also, what happens if you go to IP 192.168.0.1 in a web browser?
What if I disable the router DHCP ?
You need more information on how your ISP works. Do they allow any device with the user/password to connect? Does the ONT do PPPoE? NAT? Also why were you only getting 50Mbps connected direct to their ONT when you said your plan is 1000Mbps?
No matter what, it would be a good idea to change the access IP (192.168.0.1) and DHCP range so not to conflict with the ONT. Also, if the ONT does PPPoE, then having the router do it too can cause conflicts and might explain the speed issues. If it does NAT, then you should probably put the router in AP mode.
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Actually, after I disable and enable my network card, I don't get a network IP and my internet connection doesn't work .
I can't get online if I don't connect through PPPOE . And it looks like my computer remembers the network IP 192.168.0.100 until I disable and enable the network card . I will check without a router again .
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Cable without PPPOE:
(http://s8.postimg.org/6xwiyvg6t/image.png)
Cable with PPPOE:
(http://s12.postimg.org/4qa4vq3jh/image.png)
I disabled and enabled the network card before so it doesn't display the network IP anymore .
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Not sure why you are getting a 169 IP. That means something is still trying to do negotiate DHCP between your PC and the ONT. I don't know if this is causing your problem though, and may just be how your ISP does things.
I am going to bow out of this for now. I just don't understand PPPoE enough and how your ISP implements it. I feel someone with experience with PPPoE via FTTP would be more helpful to you. Most FTTP in the US doesn't use it. I wish you luck though. Sorry I wasn't of more help.