D-Link Forums
The Graveyard - Products No Longer Supported => Routers / COVR => DIR-645 => Topic started by: Schillinger on April 05, 2012, 10:43:11 AM
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Hey, I'm having trouble with my DIR-645, it keeps disconnecting and reconnecting once every hour.
Sometimes i wont even notice since its only down for like 1-2 seconds but most of the times i will get disconnected from games and such.
I have tried to figure out what makes it do this without any progress.
Connection Type : DHCP Client
Cable Status : Connected
Network Status : Connected
Connection Up Time : 0 Day 0 Hour 49 Min 58 Sec (this never goes over 1 hour before disconnect)
MAC Address : b8:a3:86:20:1e:81
IP Address : 213.112.155.39
Subnet Mask : 255.255.248.0
Default Gateway : 213.112.152.1
Primary DNS Server : 195.54.122.199
Secondary DNS Server : 195.54.122.204
Thank You in Advance.
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Welcome! (http://forums.dlink.com/index.php?topic=42487.0)
What Hardware version is your router? Look at sticker under router.
What Firmware (http://forums.dlink.com/index.php?topic=42458.0) version is currently loaded? Found on routers web page under status.
What region are you located?
Are you wired or wireless connected to the router?
What ISP Service do you have? Cable or DSL?
What ISP Modem do you have? Stand Alone or built in router?
What ISP Modem make and model do you have?
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.
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 4500 gets from the modem and put that into the modems DMZ.
Some things to try:
Turn off ALL QoS or Disable Traffic Shaping (DIR only) GameFuel (DGL only and if ON.) options. Advanced/QoS or Gamefuel.
Turn off Advanced DNS Services if you have this option under Setup/Internet/Manual.
Turn on DNS Relay under Setup/Networking.
Setup DHCP reserved IP addresses for all devices ON the router. Setup/Networking
Ensure devices are set to auto obtain an IP address.
Set Firewall settings to Endpoint Independent for TCP and UDP under Advanced/Firewall.
Enable uPnP and Multi-cast Streaming under Advanced/Networking.
What wireless modes are you using? Under Setup/Wireless/Manual.
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.
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.
What wireless devices do you have connected?
Any cordless house phones?
Any other WiFi routers in the area? Use InSSIDer (http://www.metageek.net/) to find out.
Turn off Short GI, WLAN Partition and Extra Wireless Protection if you have it. Under Advanced/Advanced Wireless.
Turn off all anti virus and firewall programs on PC while testing. 3rd party firewalls are not generally needed when using routers as they are effective on blocking malicious inbound traffic.
Turn off all devices accept for one wired PC while testing.
Check cable between Modem and Router, swap out to be sure. Cat6 is recommended. (http://www.networkcablingdirectory.com/articles/structured-network-cabling-id_1151.htm)
Maybe someone can review your router settings with you using teamviewer (http://www.teamviewer.com) if your interested. Its safe and secure.
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I would really much appreciate if someone could have a look at my settings thru TeamViewer cuz I'm totally lost at this point, I'm using wireless on my laptop and cable on my other computer and both keeps disconnecting once every hour :(
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Send me a PM and I'll have a look. Need ID and PW and please be wired to the back of the 645.
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Hey just wanted to check back in, it just disconnected again when it reached the one hour up time :S im starting to think it might be something wrong with the router.
Thanks for the help anyways might have to by another router :/
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Are there any log entries for this?
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This is what happend around the time it "reconnected"
Thu Apr 5 23:34:12 2012
Time synchronized
Thu Apr 5 23:34:03 2012
DHCP: Client receive ACK from 213.112.152.1, IP=213.112.156.205, Lease time=3600.
Thu Apr 5 23:34:01 2012
DHCP: Client send REQUEST, Request IP 213.112.156.205 from 213.112.152.1.
Thu Apr 5 23:34:01 2012
DHCP: Client receive OFFER from 213.112.152.1.
Thu Apr 5 23:34:01 2012
DHCP: Client send DISCOVER.
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Can you ask the ISP if they can see any issues on there logs regarding any disconnections or anything on there side?
Also ask them about MTU? Usually default for cable is 1500 however since you don't have an actual cable modem, it's possible there could be a different value.
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Also there is a DIR-645_A1_FW: v1.02b08 (for WW) that you could try if your interested.
Any chance you have family for a friend in a different location you could test this out on? I'm wondering if this problem tracks or could be related between the ISP and this router.
Keep us posted.
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Ill give them a call tmrow and ask if they can see any trouble and i will try to see if i can bring it to a friends house and try it out,
Posting back tmrow getting late now and thanks for the help so far
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Keep us posted. ;)
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this problem is an easy fix. The trick is in this line
DHCP: Client receive ACK from 213.112.152.1, IP=213.112.156.205, Lease time=3600.
the dir-645 only gets an IP for 3600 seconds, 1 hour. What you have to do is the following:
go to the status page of the router and write everything down from the WAN section, so IP adress, mac adress, subnet mask, gateway, dns etc..
next go to the setup page and click on manual in the internet section
instead of dynamic IP (DHCP) you choose Static IP and you fill in the information from above. Let the router reboot.
Instead of disconnects every 1 hour the lease time is now 168 hours or possible never.
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I would not do this as your WAN IP address from your ISP Modem changes every so often and you'll get disconnected or the router will fail to work correctly as the Modem is trying to pass a newer IP address while the router is still looking for the old one. ::)
this problem is an easy fix. The trick is in this line
DHCP: Client receive ACK from 213.112.152.1, IP=213.112.156.205, Lease time=3600.
the dir-645 only gets an IP for 3600 seconds, 1 hour. What you have to do is the following:
go to the status page of the router and write everything down from the WAN section, so IP adress, mac adress, subnet mask, gateway, dns etc..
next go to the setup page and click on manual in the internet section
instead of dynamic IP (DHCP) you choose Static IP and you fill in the information from above. Let the router reboot.
Instead of disconnects every 1 hour the lease time is now 168 hours or possible never.
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[q]I would not do this as your WAN IP address from your ISP Modem changes every so often and you'll get disconnected or the router will fail to work correctly as the Modem is trying to pass a newer IP address while the router is still looking for the old one. Roll Eyes[/q]
I fixed mine this way. But I have to ad that the IP was 192.168.0.1 so it was the DCHP server from the cablemodem that gave me troubles. Maybe this configuration is different.
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What ISP Service do you have? Cable or DSL?
What ISP Modem do you have? Stand Alone or built in router?
What ISP Modem make and model do you have?
[q]I would not do this as your WAN IP address from your ISP Modem changes every so often and you'll get disconnected or the router will fail to work correctly as the Modem is trying to pass a newer IP address while the router is still looking for the old one. Roll Eyes[/q]
I fixed mine this way. But I have to ad that the IP was 192.168.0.1 so it was the DCHP server from the cablemodem that gave me troubles. Maybe this configuration is different.
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I just had this same issue. Hourly disconnects. I'm on Bright House Cable 30mbps. The Modem/Router they provide was giving a lease for 3600 seconds and then renewing. I just set up the 'fix' talked about, manually setting a static ip address. After saving the config and reconnecting, the lease time given changed to 604800. Would prefer an infinite lease, but if this works it is better than an hourly reset.
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I am having this problem aswell. Is there still no other fix than settig up a static IP?
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I have been connected now with the static IP for over 8 hours. The fix mentioned above where the modem/router is leasing the IP to your DIR 645 appears to be working. Basically I copied the WAN info, under the dlink status menu, into the fields required when you go to the manual internet connection setup option. This option is on the page displayed when you first login to the router.
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I have been connected now with the static IP for over 8 hours. The fix mentioned above where the modem/router is leasing the IP to your DIR 645 appears to be working. Basically I copied the WAN info, under the dlink status menu, into the fields required when you go to the manual internet connection setup option. This option is on the page displayed when you first login to the router.
This, unfortunately does not work for me. I'm able to connect to the internet when using the static IP configuration. But around an hour after the configuration, I'm cut off completely from the internet. Rebooting the router won't do the trick. Reconfiguring it to dynamic IP works though. I've attempted repeatedly to configure it to use static IP, but the same thing happens after about 1 hour. I'll have to return the router tomorrow, since theres no working solution to this problem(for me atleast there isn't). I hope a new router solves the problem.
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I found the solution! I contacted my ISP and they told me to enable unicasting under dynamic setup. It seems like the router asks for a renewal of it's IP address, gets a response, but for some reason ignores it. It then keeps ignoring every answer it gets and evetually the lease time runs out. My ISP thinks it's a bug and it's not something at their end. Anyways, it solved to problem, so I'm happy :)
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Enjoy.
I found the solution! I contacted my ISP and they told me to enable unicasting under dynamic setup. It seems like the router asks for a renewal of it's IP address, gets a response, but for some reason ignores it. It then keeps ignoring every answer it gets and evetually the lease time runs out. My ISP thinks it's a bug and it's not something at their end. Anyways, it solved to problem, so I'm happy :)