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[rentalagreement]

Hi everyone,
I have searched and read but I just can't figure out why my DIR-882 is repeatedly losing its WAN connection.  I have discussed with my ISP and can confirm that the modem is not the issue nor is the connection to the internet. If I hardwire to the modem, I have no issues, it's only via the router that I have issues.  PS. The router and modem disconnected twice while writing this up.

Here are some specs:

• Router: DIR-882 HW V: A1
• Firmware: 1.10 2018-03-10T17:54:22 I have managed to downgraded the firmware via recovery to 1.01 which doesn't make me feel too good about it but it's what dlink support had told me to do yesterday as there no longer seems to be the 1.10 firmware on the support site for my version. Maybe that will fix the problem but I feel somewhat more vulnerable now
• Factory reset: Yes, I have performed a factory reset since updating the firmware twice. I tried a 30/30/30 but the upgrade failed every time I tried that this evening. I have managed to downgrade the Firmware back to 1.01. 
• Was the router working prior to upgrade: Mostly yes, We would still need to reset once a day but now it's literally 20-30 minutes.

ISP details

• Cable Internet w/ Teksavvy 25MBps. Modem: Thomson DCM476
• Dynamic IP
• I have swapped out the cable between modem/router, yes

• What wireless modes am I using: 2.4 and 5 ghz.
• 2.4ghz
• Security: WPA2-Personal
• Mixed b/g/n
• Wifi Channel: Auto (Yes there are a few neighbouring Wifis but not many, I'm not in a building
• Power: High
• Channel width: 20/40/
• HT 20/40 coexist: True
• 5 Ghz
• Security: WPA2-Personal
• Mixed a/n/ac
• Channel: Auto
• Channel width: 20/40/80

Other settings

• Dynamic IP DHCP
• ipv6 Local connectivity only
• QoS Engine: I set to 25 Down/5 up as per my plan
• Firewall: SPI IPv4 enabled, Anti-spoof checking enabled, Ipv6 simple security, enabled, Ipv6 ingress filtering enabled

I have tried:

• Factory reset of the router
• Setting static IPs for each of my devices
• Setting QoS to my appropriate speed
• Setting a static IP for the modem (I figured, if it could at least connect for a day that would be okay, but nope!)
• Disconnecting all computers from the network except ONE ( and yes, I tried 2 separate computers

Any ideas you may have would be greatly appreciated.  Is this router just a dud?

Below you will find the logfile details from my router:

2018-03-10 17:54:27 [SYSLOG]: start BusyBox v1.12.1
2018-03-10 17:55:10 [RC]: Wan(eth3) Disconnect
2018-03-10 17:55:12 ipsec_setup: ...Openswan IPsec stopped
2018-03-10 17:55:12 [RC]: Current Wan interface is eth3 , mode is dhcp
2018-03-10 17:55:12 [RC]: Wan(eth3) Disconnect
2018-03-10 17:55:13 ipsec_setup: ...Openswan IPsec stopped
2018-03-10 17:55:16 [RC]: Wan(eth3) connect Success , Current Wan ip is [redacted]
2018-03-10 17:55:16 [UPNP]: WPS listening on port 8888
2018-03-10 17:55:21 ipsec_setup: ...Openswan IPsec stopped
2018-05-03 22:44:30 [RC]: SNTP SYN success ! Current timer is 2018-05-03 22:44:30
2018-05-03 23:12:52 [RC]: Wan(eth3) Disconnect
2018-05-03 23:12:52 ipsec_setup: ...Openswan IPsec stopped
              total         used         free       shared      buffers
  Mem:       120264        85280        34984            0            0
 Swap:            0            0            0
Total:       120264        85280        34984
  PID USER       VSZ STAT COMMAND
    1 admin     4684 S    /sbin/preinit
    2 admin        0 SW   [kthreadd]
    3 admin        0 SW   [ksoftirqd/0]
    4 admin        0 SW   [kworker/0:0]
    5 admin        0 SW<  [kworker/0:0H]
    6 admin        0 SW   [kworker/u8:0]
    7 admin        0 SW   [migration/0]
    8 admin        0 SW   [rcu_bh]
    9 admin        0 SW   [rcu_sched]
   10 admin        0 SW   [migration/1]
   11 admin        0 SW   [ksoftirqd/1]
   13 admin        0 SW<  [kworker/1:0H]
   14 admin        0 SW   [migration/2]
   15 admin        0 SW   [ksoftirqd/2]
   16 admin        0 SW   [kworker/2:0]
   17 admin        0 SW<  [kworker/2:0H]
   18 admin        0 SW   [migration/3]
   19 admin        0 SW   [ksoftirqd/3]
   20 admin        0 SW   [kworker/3:0]
   21 admin        0 SW<  [kworker/3:0H]
   22 admin        0 SW<  [khelper]
   23 admin        0 SW   [kdevtmpfs]
   24 admin        0 SW<  [netns]
   25 admin        0 SW<  [writeback]
   26 admin        0 SW<  [bioset]
   27 admin        0 SW<  [kblockd]
   28 admin        0 SW   [khubd]
   29 admin        0 SW   [kworker/3:1]
   30 admin        0 SW   [kworker/2:1]
   31 admin        0 SW   [kworker/1:1]
   32 admin        0 SW   [kworker/0:1]
   33 admin        0 SW   [kswapd0]
   34 admin        0 SWN  [ksmd]
   35 admin        0 SW   [fsnotify_mark]
   36 admin        0 SW<  [crypto]
   43 admin        0 SW   [kworker/u8:1]
   48 admin        0 SW<  [deferwq]
   54 admin     1168 S    tw_hotplug
   58 admin     2732 S    nvram_daemon
   76 admin        0 SWN  [jffs2_gcd_mtd6]
  403 admin     3936 S    stad 1
  405 admin     3940 S    stad 2
  416 admin     4684 S    /sbin/preinit
  422 admin     1064 S    dxml -n dbros -t
  467 admin      940 S    nl_server -i br0 -s dlinkrouter -s dlinkrouter0913 -s
  468 admin      928 S    nl_server -i br0 -s dlinkrouter -s dlinkrouter0913 -s
  471 admin     1320 S    mDNSResponder -b -i br0 -f /tmp/mdns_resp.conf -e dli
  523 admin     4952 S    /bin/lighttpd -f /etc_ro/lighttpd/lighttpd.conf -m /e
  525 admin     6044 S    /bin/prog.cgi
  531 admin     4084 S    timer
  537 admin     1664 S    syslogd -L
  576 admin        0 SW   [RtmpCmdQTask]
  577 admin        0 SW   [RtmpWscTask]
  578 admin        0 SW   [HwCtrlTask]
  579 admin        0 SW   [ser_task]
  584 admin        0 SW   [RtmpMlmeTask]
  644 admin        0 SW   [RtmpCmdQTask]
  645 admin        0 SW   [RtmpWscTask]
  646 admin        0 SW   [HwCtrlTask]
  647 admin        0 SW   [ser_task]
  652 admin        0 SW   [kworker/1:2]
  657 admin        0 SW   [RtmpMlmeTask]
  674 admin     1420 S    bndstrg -d 0
 2009 admin      972 S    omcproxy -e1
 2015 admin     1424 S    dnsmasq -C /tmp/dnsmasq.conf -6 /tmp/dnsmasq_dhcp_eve
 2016 admin     1416 S    dnsmasq -C /tmp/dnsmasq.conf -6 /tmp/dnsmasq_dhcp_eve
 3320 admin     1668 S    sh -c ps >> /etc_ro/lighttpd/www/web/messages
 3321 admin     1668 R    ps
15790 admin     1028 S    radvd -m none -C /tmp/radvd.conf
15813 admin     2460 S    zebra -u admin -g admin -f /tmp/zebra.conf -d
15902 admin     2108 S    ripd -u admin -g admin -f /tmp/ripd.conf -d
15907 admin     1408 S    /sbin/pppoe-relay -S eth3 -C br0
31156 admin      964 S    udhcpc -i eth3 -p wan_wan0_status -s /tmp/wan_udhcpc
br0       Link encap:Ethernet  HWaddr 74:DA:DA:CB:09:13 
          inet addr:192.168.0.1  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::76da:daff:fecb:913/64 Scope:Link
          inet6 addr: fd3c:ab21:dbdc:1:76da:daff:fecb:913/64 Scope:Global
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:21417 errors:0 dropped:36 overruns:0 frame:0
          TX packets:28874 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:3397178 (3.2 MiB)  TX bytes:13501691 (12.8 MiB)

br1       Link encap:Ethernet  HWaddr 74:DA:DA:CB:09:17 
          inet addr:192.168.7.1  Bcast:192.168.7.255  Mask:255.255.255.0
          inet6 addr: fe80::3c34:d1ff:fe40:4b05/64 Scope:Link
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:110 (110.0 B)

br2       Link encap:Ethernet  HWaddr 74:DA:DA:CB:09:18 
          inet6 addr: fe80::2053:bcff:fe1e:8307/64 Scope:Link
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:188 (188.0 B)

br3       Link encap:Ethernet  HWaddr 74:DA:DA:CB:09:19 
          inet6 addr: fe80::50cf:8ff:feb6:406b/64 Scope:Link
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:188 (188.0 B)

eth2      Link encap:Ethernet  HWaddr 74:DA:DA:CB:09:13 
          inet6 addr: fe80::76da:daff:fecb:913/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:15898 errors:0 dropped:0 overruns:0 frame:0
          TX packets:73865 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:3031066 (2.8 MiB)  TX bytes:10569533 (10.0 MiB)
          Interrupt:3

eth2.1    Link encap:Ethernet  HWaddr 74:DA:DA:CB:09:13 
          inet6 addr: fe80::76da:daff:fecb:913/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:12919 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:1748776 (1.6 MiB)

eth2.2    Link encap:Ethernet  HWaddr 74:DA:DA:CB:09:13 
          inet6 addr: fe80::76da:daff:fecb:913/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:12919 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:1748776 (1.6 MiB)

eth2.3    Link encap:Ethernet  HWaddr 74:DA:DA:CB:09:13 
          inet6 addr: fe80::76da:daff:fecb:913/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:12919 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:1748776 (1.6 MiB)

eth2.4    Link encap:Ethernet  HWaddr 74:DA:DA:CB:09:13 
          inet6 addr: fe80::76da:daff:fecb:913/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1828 errors:0 dropped:0 overruns:0 frame:0
          TX packets:13692 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:463682 (452.8 KiB)  TX bytes:1928311 (1.8 MiB)

eth3      Link encap:Ethernet  HWaddr 74:DA:DA:CB:09:16 
          inet6 addr: fe80::76da:daff:fecb:916/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:481776 errors:0 dropped:0 overruns:0 frame:0
          TX packets:12684 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:64156173 (61.1 MiB)  TX bytes:2299835 (2.1 MiB)

lo        Link encap:Local Loopback 
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:111 errors:0 dropped:0 overruns:0 frame:0
          TX packets:111 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:6551 (6.3 KiB)  TX bytes:6551 (6.3 KiB)

ra0       Link encap:Ethernet  HWaddr 74:DA:DA:CB:09:14 
          inet6 addr: fe80::76da:daff:fecb:914/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1810 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1098 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:227293 (221.9 KiB)  TX bytes:639781 (624.7 KiB)
          Interrupt:4

rai0      Link encap:Ethernet  HWaddr 74:DA:DA:CB:09:15 
          inet6 addr: fe80::76da:daff:fecb:915/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:33173 errors:192 dropped:0 overruns:0 frame:0
          TX packets:37029 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:4224938 (4.0 MiB)  TX bytes:40387538 (38.5 MiB)
          Interrupt:24

[/list]

[FurryNutz]

Link>Welcome!

• What region are you located?

Is the router still disconnecting from internet after downgrade?

Try setting 2.4Ghz to single mode N and manual channel 1, 6 or 11.
Try setting 5Ghz to mixed N/AC and manual channel 48 or 149.

Disable QoS or don't set any devices in the sections.

Do you have access to the routers web page when this disconnect happens?

Try setting manual WAN port speed, Try 100Mb then try 1000Mb.

[GreenBay42]

I had a similar issue. It (in my case) was the cable modem. I had techs out for 5 months almost every 2-3 weeks - good connection, modem tested good, they added a signal booster, replaced the modem with the same model, no coax splitter, replaced cables, plugged modem into an outlet by itself, etc etc etc. I finally bought a Arris SB6183 and it has been up 24/7 for the last 4-5 months.

Does your modem reboot when it drops?  In my case I would see my modem start its reboot process when my connection dropped.

Is your modem and/or router running hot?

It is difficult finding the chipset for this modem. My google must be broke or my 5 hour energy hasn't kicked in yet. Looks to be Broadcom but it is mentioned in the Intel Puma 6 conversation.

Maybe try resetting the modem --> https://help.teksavvy.com/hc/en-us/articles/200601094-How-To-Resetting-your-Thompson-Technicolor-DCM475-476

Is this the first device connected to your modem (ie did another router work ok?)

How long was it working before the firmware update?

It is almost impossible to know if it is the router or modem without replacing one of them.

[rentalagreement]

Thanks both.  I will try this and report back.

A few things I can already report:

• After downgrade to 1.01 Firmware, the connection still dropped after 20 minutes. This one was disheartening. I was really really hopeful
• When it disconnects can I still connect to the router webpage? Yes
• Does my modem reboot when it drops? No, there is no change to the modem and if I plug my computer directly to the modem the connection is fine.
• I have reset the modem 30/30/30 yes
• Previously, I did have some disconnects but they happened once a day or so.  I had an old D Link DIR-665 and that would drop connection sometimes in 24/48 hours.  That said, they have reviewed the signal, etc etc and the modem is working. Again, if I am hard wired to the modem I have no issues at all
• I have no devices in QoS and set the settings appropriately to my speed

I'll try the rest of what you said and report back

[GreenBay42]

So no activity on the modem (link lights) when it drops?

How long does it recover and start connecting again? Is it a consistent time frame?

In the Internet settings on the router, clone the MAC of the computer you directly connect to the modem (may not do anything but you never know - it is part of the router/modem negotiation. If the modem doesn't clear the MAC address, connectivity may vary).

I wouldn't worry too much about the LAN/Wireless settings on the router. If all devices drop internet connectivity at once it is the router/modem connectivity.

Make sure the modem has the latest firmware (looks like 2.1 from teksavvy).

It sounds like either the router is bad (you could connect one computer to the Internet port and one on LAN and ping test overnight or for a few hours), or some quirky negotiation issues between the router and the modem. In many similar cases changing the modem to a different model worked.

[rentalagreement]

Yes, I think the problem is the connection from router to modem for sure.  And that said, I have been connected for 9 hours now.  I get a feeling the change from 1000 Mbs to 100 Mbs for the WAN setting is what did it, but I had also changed some of the other settings based on what you guys said.  So I am going to change settings back and try and see if the WAN speed is indeed the case.  I had a few drops still but afterwards it was able to reconnect and stayed overnight which is great.

I'm probably going to take a bit of time with it as this issue has consumed my time for the past few weeks so I'm going to enjoy this for a little bit before I try and narrow it down.

 want to thank you both for your time and energy in helping me find a solution. I really really appreciate it.

Will report back once I change more settings and see if I can conclude it was the WAN speed. but that's my current hypothesis!

[GreenBay42]

Thanks for the update and hopefully the connection will stay stable. Let us know how it goes.

[FurryNutz]

Would there be a problem in the WAN port speed feature when set to AUTO?

Thanks for the update and hopefully the connection will stay stable. Let us know how it goes.

[rentalagreement]

It was on Auto previously and when I changed it to 100 then things seem to be fine.

[FurryNutz]

Auto should work as well...

[Waterfox]

I have the same router and teksavvy modem and am currently plagued by this issue. I've tried the changes mentioned above and I still get disconnects every 30 mins. Sometimes I get longer periods with no disconnects. I can sort of correlate it with an iphone 7 being connected, but it still disconnects when the phone isnt around.

[FurryNutz]

Link>Welcome!

• 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.
• 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?

I have the same router and teksavvy modem and am currently plagued by this issue. I've tried the changes mentioned above and I still get disconnects every 30 mins. Sometimes I get longer periods with no disconnects. I can sort of correlate it with an iphone 7 being connected, but it still disconnects when the phone isnt around.

[Waterfox]

Hey!

My hardware version is A1
Firmware version is 1.10 (also had issues on previous firmware)
Region: Ontario Canada

ISP is TekSavvy Cable
Modem: Thomson DCM476

[rentalagreement]

A quick update:  The reduction in WAN from auto to 100Mbps worked for a short time and then I was back to the same issue.  I received an email from the DLink tech support advising that there was a new Firmware in Beta and to test it.

I did a factory reset, installed the new firmware (going through 1.04 and then the 1.10B) and then did another factory reset. So far it has been rock solid (knock on wood) and I have had no drops in connectivity.  At this point, I'm almost getting weirded out that it works so well...

[FurryNutz]

I recommend that you phone contact your regional D-Link support office and ask for help and information regarding this. I would ask about any availability of a beta that you can get a hold of. We find that phone contact has better immediate results over using email.
Let us know how it goes please.

Hey!

My hardware version is A1
Firmware version is 1.10 (also had issues on previous firmware)
Region: Ontario Canada

ISP is TekSavvy Cable
Modem: Thomson DCM476