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Need constant router restart

Posted on 2016-09-05
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Last Modified: 2016-11-03
Hello,

I have 2 machines connected to DLINK DIR-880L via wifi. Every so often they can't see each other. Here is an example when I can't resolve the hostnames. After router restart all works again until this happens again within a day. I am so tired of restarting the router. I should note that I had another DIR-880L router and it shows same issue. So, it can't be the router, right?

I have two machines on reserved ips. For whatever reason I can't ping via name as shown below. After router restart all works again. Any idea why? Machines also can't see each other under network tab in windows even though I still can access by IP address. After restart this is also resolved.

DESKTOP PC  - 192.168.100.100
MEDIA PC - 192.168.100.101

From desktop pc ---------------------------------------
C:\Users\xxx>ping 192.168.100.101

Pinging 192.168.100.101 with 32 bytes of data:
Reply from 192.168.100.101: bytes=32 time=2ms TTL=128
Reply from 192.168.100.101: bytes=32 time=1ms TTL=128
Reply from 192.168.100.101: bytes=32 time=1ms TTL=128
Reply from 192.168.100.101: bytes=32 time=1ms TTL=128

Ping statistics for 192.168.100.101:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 1ms, Maximum = 2ms, Average = 1ms

C:\Users\xxx>tracert media-pc
Unable to resolve target system name media-pc.

C:\Users\xxx>tracert 192.168.100.101

Tracing route to MEDIA-PC [192.168.100.101]
over a maximum of 30 hops:

  1     1 ms     2 ms     1 ms  MEDIA-PC [192.168.100.101]

Trace complete.

C:\Users\xxx>ping media-pc
Ping request could not find host media-pc. Please check the name and try again.
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Question by:Konstantin Shatalov
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16 Comments
 
LVL 16

Expert Comment

by:Dirk Mare
ID: 41784656
How do you have your DNS configured and how is your DNS configured on your routers DHCP settings?

To bypass this edit the windows HOST file on each pc and add IP and Name to the host file..
Link 1
Link 2

Are you sure your reservations are working correctly?
can you post ipconfig /all from both PC?

DirkMare
0
 
LVL 37

Expert Comment

by:Bing CISM / CISSP
ID: 41784660
it might be a design flaw which is not uncommon for products of D-LINK, TP-LINK or similar brand names.

scheduling a restart is good practice for non-enterprise product lines such as home WiFi routers and printers.
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LVL 90

Expert Comment

by:John Hurst
ID: 41784679
Also check for a Firmware update for your D-Link routers. Firmware bugs can cause this.

I have two machines on reserved ips   <-- Consider using vanilla DHCP. It just works better.
0
 

Author Comment

by:Konstantin Shatalov
ID: 41784681
Hostname is not really an option as there are other devices such as chromecast/tablet/phone that can't connect to the pc.

The DNS server is set on router to 8.8.8.8, 8.8.4.4 but this is extern DNS, right? It shouldn't be used to resolve local machine names.

reservation is working for sure as I can continue to communicate via ip directly when problem comes up.

----------------------------------------------------------------------------------------------
Windows IP Configuration

   Host Name . . . . . . . . . . . . : MEDIA-PC
   Primary Dns Suffix  . . . . . . . :
   Node Type . . . . . . . . . . . . : Hybrid
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No
   DNS Suffix Search List. . . . . . : phub.net.cable.rogers.com

Wireless LAN adapter Wi-Fi:

   Connection-specific DNS Suffix  . : phub.net.cable.rogers.com
   Description . . . . . . . . . . . : D-Link DWA-160 Xtreme N Dual Band USB Adapter(rev.B2)
   Physical Address. . . . . . . . . : ....
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::9530:6075:e693:8d71%7(Preferred)
   IPv4 Address. . . . . . . . . . . : 192.168.100.101(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Lease Obtained. . . . . . . . . . : Friday, August 19, 2016 7:58:10 AM
   Lease Expires . . . . . . . . . . : Thursday, October 12, 2152 3:30:12 PM
   Default Gateway . . . . . . . . . : 192.168.100.1
   DHCP Server . . . . . . . . . . . : 192.168.100.1
   DNS Servers . . . . . . . . . . . : 192.168.100.1
   NetBIOS over Tcpip. . . . . . . . : Enabled

----------------------------------------------------------------------------------------------

Windows IP Configuration

   Host Name . . . . . . . . . . . . : Desktop-PC
   Primary Dns Suffix  . . . . . . . :
   Node Type . . . . . . . . . . . . : Hybrid
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No
   DNS Suffix Search List. . . . . . : phub.net.cable.rogers.com

Wireless LAN adapter Wi-Fi:

   Connection-specific DNS Suffix  . : phub.net.cable.rogers.com
   Description . . . . . . . . . . . : D-Link DWA-552 XtremeN Desktop Adapter
   Physical Address. . . . . . . . . : ...
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::30ac:c9c3:84ac:a924%6(Preferred)
   IPv4 Address. . . . . . . . . . . : 192.168.100.100(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Lease Obtained. . . . . . . . . . : Sunday, September 04, 2016 1:33:01 PM
   Lease Expires . . . . . . . . . . : Thursday, October 12, 2152 3:35:12 PM
   Default Gateway . . . . . . . . . : 192.168.100.1
   DHCP Server . . . . . . . . . . . : 192.168.100.1
   DHCPv6 IAID . . . . . . . . . . . : 151003537
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1C-E8-6E-AD-6C-F0-49-00-D8-7D
   DNS Servers . . . . . . . . . . . : 8.8.8.8
                                       8.8.4.4
   NetBIOS over Tcpip. . . . . . . . : Enabled
0
 
LVL 90

Expert Comment

by:John Hurst
ID: 41784686
3rd party DNS will not do anything for local DNS.  You can use a local host file on the computers to see if that works.

Did you try Firmware?
0
 

Author Comment

by:Konstantin Shatalov
ID: 41784696
Router firmware is latest. I can easily edit host file on PCs but it seems to be painful process for android tablets and don't even know if it is possible for chromecast.
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LVL 16

Expert Comment

by:Dirk Mare
ID: 41784697
from your ipconfig..

desktop PC has google DNS configured for DNS and not your local DNS (192.168.100.1)

Which means when desktop pc tries to resolve media pc IP it tries to connect to Google DNS which will not work..

under your router reservation confirm the configuration for desktop pc..

DirkMare
0
 
LVL 9

Expert Comment

by:Tomas Valenta
ID: 41784699
Try this like workaround
If you are using this router for DHCP and DNS than:
In router configuration make this changes:
DHCP reservation for both computers so they will have the same IP address assigned forever
add static DNS records for both computers in router DNS table

For troubleshooting the issue:
where is your DNS server ? D-link itself ?
put here result of IPCONFIG /ALL from both computers in time all is working
when the problem starts try these commands and actions on both computers:
ipconfig /flushdns
try ping to name
nslookup media-pc
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LVL 1

Expert Comment

by:Marcin Koprowski
ID: 41784777
Hi Konstantin.

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.

Sounds like you are in a double NAT condition and this an effect how the DIR-880L or any router behind this ISP modem can operate correctly, but I'm guessing here. I'm trying to come up with something to help you.

Best wishes,

Marcin
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Assisted Solution

by:John Hurst
John Hurst earned 166 total points (awarded by participants)
ID: 41784784
Another thing to try is a better router. I do not specify D-Link any more for clients.
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Author Comment

by:Konstantin Shatalov
ID: 41784844
- I did indeed have DNS set manually on Desktop-PC to google DNS. Again, I don't think it makes a difference as after router restart it works again. I changed this to get DNS automatically.
- The modem from rogers is indeed set to bridge mode.
- Any recommendations for actually a good router? I have 2 versions of this one and both have problems.

thanks everyone on tips. I will do more diagnosing when the problem happens again.
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LVL 16

Expert Comment

by:Dirk Mare
ID: 41784996
Glad I could help..

DirkMare
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Accepted Solution

by:
pgm554 earned 167 total points (awarded by participants)
ID: 41785017
If you're wiling to RTFM,try an Edgemax.

Inexpensive and enterprise quality.

https://www.ubnt.com/edgemax/edgerouter-lite/
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Assisted Solution

by:Fred Marshall
Fred Marshall earned 167 total points (awarded by participants)
ID: 41785132
I don't see any mention of how you are getting name service within your LAN.  
I *do* see suggestions for how to do it differently of course.  But not how it is / should be / working under the present setup.  

I know of NO router that provides name service.  So blaming the router for a loss of name service doesn't seem to be focusing on the right issue.  Yes, I understand that rebooting the router "fixes" the problem but I don't think anyone would venture to say why.

A plain vanilla small network will often provide name service via one of the Windows computers which is assigned the role of "Master Browser" - which browses the network and maintains a list of computer names and IP addresses.  More recent developments have improved on this but I'm not sure to what degree it's been overcome.  With this mechanism, the rule has always been to wait for 30-40 minutes before relying on the Network list.  That's very annoying when trying to set up a network!  Also, without one of the simple tools available, it's hard to know which computer is the master browser.  If you shut off the master browser computer or reboot it then there will be a polling between the computers to decide which one will become the Master Browser.  And then a new list has to be compiled.  All this takes time.  So, you can disrupt things if you shut off or reboot the one computer.  Might something like this be happening?  Perhaps a bad network connection could appear to be the same situation and cause a new polling.

Perhaps it's unfortunate that we refer to "DNS" (Domain Name Service) for both internet DNS and for LAN name service.  It seems to me that the latter is really a misnomer and maybe should be referred to as LNS. ??    Indeed, name service can be combined for both but, as above, often is not.  So, you get name service for each in different ways.  Using 8.8.8.8 is fine for one and useless for the other.  Networks with servers are more likely to combine the two.  But, you didn't mention a server so this is an important distinction.
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LVL 16

Expert Comment

by:Dirk Mare
ID: 41805969
I do not agree that a new router would resolve the authors problems

You cannot have googles public DNS configured on the client and expect it to resolve local network address. Public Yes but not local computers and server ext.

DirkMare
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LVL 90

Expert Comment

by:John Hurst
ID: 41813589
The solution here is a new and better router. I use Rogers myself and it is not a Rogers issue based on the posts.
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