Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[MeQuerSat]

Getting frequent LAN/Ethernet dropouts with my DIR-652.
Problem only occurs when using Windows + cable.
On Linux no dropouts occur at all and on Windows via WiFi no dropouts either.
(I tested this on 3 different computers, all exhibit this behavior)

Everytime a dropout occurs (sometimes every hour or so, but sometimes every few minutes) this message can be found in the LOG:

Code: [Select]

May 27 17:06:21 [ 92.790000] module arch cleanup sch_ubicom_streamengine: OCM instruction memory free of 0 @00000000
May 27 17:06:20 [ 92.230000] Disable bridge netfilter
May 27 17:06:16 [ 88.610000] module arch cleanup nf_conntrack_ftp: OCM instruction memory free of 0 @00000000
May 27 17:06:16 [ 88.390000] module arch cleanup nf_nat_ftp: OCM instruction memory free of 0 @00000000
When a dropout occurs: no LAN or WAN access and have to disable and enable network adapter *or* unplug and replug ethernet cable. Either way the link has to be re-established.

I've tried quite some combinations of options in the router's web page, but to no avail.
Anything I can do to fix this?

PS Running Windows 7 x64

[FurryNutz]

What Hareware version is your router? Look at sticker under router.
What Firmware version is currently loaded? Found on routers web page under status.

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.

Some other tips:
Ensure DNS IP addresses are being filled in under Setup/Internet/Manual? You can find these under Status/Device Info/Wan section.
Turn off ALL QoS (DIR only) GameFuel (DGL only and if ON.) options.
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.
Ensure devices are set to auto obtain an IP address.
Set Firewall settings to Endpoint Independent for TCP and UDP.

urn off all anti virus and firewall programs on PC while testing.
Turn off all devices accept for one wired PC while testing.

Check cable between Modem and Router, swap out to be sure. Cat6 or 5e recommended.

[Hard Harry]

Code: [Select]

May 27 17:06:21 [ 92.790000] module arch cleanup sch_ubicom_streamengine: OCM instruction memory free of 0 @00000000
May 27 17:06:20 [ 92.230000] Disable bridge netfilter
May 27 17:06:16 [ 88.610000] module arch cleanup nf_conntrack_ftp: OCM instruction memory free of 0 @00000000
May 27 17:06:16 [ 88.390000] module arch cleanup nf_nat_ftp: OCM instruction memory free of 0 @00000000
When a dropout occurs: no LAN or WAN access and have to disable and enable network adapter *or* unplug and replug ethernet cable. Either way the link has to be re-established.

The bridge-netfilter code enables the following functionality:

{Ip,Ip6,Arp}tables can filter bridged IPv4/IPv6/ARP packets, even when encapsulated in an 802.1Q VLAN or PPPoE header. This enables the functionality of a stateful transparent firewall.
All filtering, logging and NAT features of the 3 tools can therefore be used on bridged frames.
Combined with ebtables, the bridge-nf code therefore makes Linux a very powerful transparent firewall.
This enables, f.e., the creation of a transparent masquerading machine (i.e. all local hosts think they are directly connected to the Internet).
Letting {ip,ip6,arp}tables see bridged traffic can be disabled or enabled using the appropriate proc entries, located in /proc/sys/net/bridge/:
bridge-nf-call-arptables
bridge-nf-call-iptables
bridge-nf-call-ip6tables
Also, letting the aforementioned firewall tools see bridged 802.1Q VLAN and PPPoE encapsulated packets can be disabled or enabled with a proc entry in the same directory:
bridge-nf-filter-vlan-tagged
bridge-nf-filter-pppoe-tagged
These proc entries are just regular files. Writing '1' to the file (echo 1 > file) enables the specific functionality, while writing a '0' to the file disables it.

Only thing in log I see that isn't filler is "Disable bridge netfilter". So, my suggestions:

1. Try keeping the Linux PC off and see if the problem occurs with the MS systems.

2. Turn off all IPv6 protocols on the MS machine.

3. Make sure the MS machine's NIC drivers are up to date and system default settings.

[MeQuerSat]

What Hareware version is your router? Look at sticker under router.
What Firmware version is currently loaded? Found on routers web page under status.

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.

Some other tips:
Ensure DNS IP addresses are being filled in under Setup/Internet/Manual? You can find these under Status/Device Info/Wan section.
Turn off ALL QoS (DIR only) GameFuel (DGL only and if ON.) options.
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.
Ensure devices are set to auto obtain an IP address.
Set Firewall settings to Endpoint Independent for TCP and UDP.

urn off all anti virus and firewall programs on PC while testing.
Turn off all devices accept for one wired PC while testing.

Check cable between Modem and Router, swap out to be sure. Cat6 or 5e recommended.

Hardware version A1.
Latest firmware (1.00 28 May 2011)
Modem and ISP is not the problem, as I tested on 2 different modems: same problem.
My previous router TP-Link TL-WR1043ND worked fine.

DHCP works fine and I have no problem obtaining an IP-address for LAN and WAN.
Already tried turning off QoS.
Tried different cables, not the problem.
Already have DNS Relay on.

I did not yet try this, so I will now

Code: [Select]

Set Firewall settings to Endpoint Independent for TCP and UDP.
Thanks for all the help!

PS @ Hard Harry: I'm pretty sure the problem is that "OCM memory" **** as someone else with a DIR-655 got the same exact problem with a DIR-655 (see here http://www.overclock.net/t/1030635/router-keeps-losing-connection)

UPDATE: Even with Firewall to Endpoint Independent for TCP/UDP connection was dropped, this was in the log:

Code: [Select]

May 28 11:28:44 UDHCPD sending ACK to 192.168.0.101
May 28 11:26:16 UDHCPD sending ACK to 192.168.0.101
May 28 09:59:04 [60855.980000] Disable bridge netfilter
May 28 09:59:01 [60853.480000] module arch cleanup nf_conntrack_ftp: OCM instruction memory free of 0 @00000000
May 28 09:59:01 [60853.320000] module arch cleanup nf_nat_ftp: OCM instruction memory free of 0 @00000000The drops occurred at 11:26 and 11:28

[FurryNutz]

Hardware version A1.
Latest firmware (1.00 28 May 2011)


Curious, was region of the world are you in?
For U.S. units, v1.35 dated 12/28/2010 is the latest here for NA units. Possible this unit is a Non NA unit?

Let us know.

[Hard Harry]

PS @ Hard Harry: I'm pretty sure the problem is that "OCM memory" **** as someone else with a DIR-655 got the same exact problem with a DIR-655 (see here http://www.overclock.net/t/1030635/router-keeps-losing-connection)

Did you try my suggestions? What were the results? If your asking me to debug firmware code..you have come to the wrong place. LOL. All I can suggest is trial and error.

[MeQuerSat]

I'm from Europe, Holland to be specific.
I can try to flash it with the US firmware?

@Hard Harry, yeah I tried what you said. Didn't help unfortunately.

[FurryNutz]

NO, don't update using NA firmware. Various items are different between here and your region.
I actually didn't provide you with accurate information. Still early morning here, so I appologize. I was looking at the wrong model.

I believe the 652 isn't marketed here. So what you have loaded is probably most recent. How long have you had this unit for?

I would recommend that you call up DLink for support and or get the unit RMAs or return it to place of purchace and get another of the same model or different model. I wish we could be of more help.

Let us know what happens.

I'm from Europe, Holland to be specific.
I can try to flash it with the US firmware?

@Hard Harry, yeah I tried what you said. Didn't help unfortunately.

[Hard Harry]

Found this

But since I don't have your info, can't get past it. That is where the firmware should be listed, or atleast around there.

[MeQuerSat]

Followed FurryNutz's advice and went for an RMA.
Now they're saying it won't be taken in for RMA.

Will update when I know more.

Thanks for all the help, though. 

[FurryNutz]

Did you try to update the FW any?

[MeQuerSat]

The FW was already the latest.

Router wouldn't be taken in for RMA, so I got a coupon with which I bought a 300N WiFi PCI card and a Gbit PCI card.
Set the card up with hostapd in Linux and got myself a super fast router for no extra money 

[FurryNutz]

Sounds like you got it worked out. Enjoy.