DNS Probe Error with Home Network: Neostrada, TP-Link W8901G & WR841N, Powerline Transmitters

Hello,
For some time I have had a problem with the network at home, an error appears in the browser (as in the topic) every now and then indefinitely, once a day, sometimes every several minutes for an hour. It cuts off the internet completely, there's nothing you can do.
Internet: Neostrada.

The network looks like this:

Main ADSL Router (DCP Enabled):
TP-Link W8901G

Access Point:
TP-Link WR841N

Routers connected with a LAN LAN cable, additionally with TP-Link Powerline transmitters. DNS servers set as recommended by Orange. Firmware updated to the latest version. WiFi on both routers the same, SSID and password the same, channels different (1,6).

I have found that the problem only occurs when connected to the second WR841N router. I changed the software to DDWRT and the problem persists.

What could this be a problem and why? I do not remember exactly when the problem started to occur, but it is definitely not the fault of the computers, because no matter what computer / phone I connect, there is no internet anywhere.

In my opinion, the fault lies with the communication between the routers, but the signal in the transmitters is good, so it's probably not that.

I am asking for some hints, best regards.

https://www.elektroda.pl/rtvforum/topic3141985.html#15322645
Here you have exactly the same problem (even the title is the same), read on

I have read all the topics on the electrode and not only related to this error and if it was about the same, I would not write a new thread :)

In my case, the fault does not lie with the computer / network card drivers. When the error occurs, all computers have the same error, so it is probably the fault of the router, or the connection between the routers, I think.

How to cut off the neta show

tracert -d 8.8.8.8

ping IP_YOUR_ROUTER_NEO

ping IP_NEXT_ROUTER_BUT_ YOUR_ROUTER

Sorry to write back so late, here are the results:



192.168.1.1 is the main ADSL router
192.168.1.2 is the access point that I connect to normally, also during this test.

I would like to add that after resetting the access point, the internet works again.

How is net

tracert -d 8.8.8.8

show print.


As there is no net
ping 8.8.8.8
tracert -d 8.8.8.8
arp -a
print route
ipconfig / all

Przy odłączonym necie (widać, że internet wrócił podczas wykonywania komend):

C:\Users\Kolar>ping 8.8.8.8

Pinging 8.8.8.8 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 8.8.8.8:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

C:\Users\Kolar>tracert -d 8.8.8.8

Tracing route to 8.8.8.8 over a maximum of 30 hops

1 * * * Request timed out.
2 * * * Request timed out.
3 * * * Request timed out.
4 * * * Request timed out.
5 * * * Request timed out.
6 * * * Request timed out.
7 * * * Request timed out.
8 * * * Request timed out.
9 * * * Request timed out.
10 * 59 ms 61 ms 209.85.250.165
11 * * * Request timed out.
12 59 ms 59 ms 59 ms 8.8.8.8

Trace complete.

C:\Users\Kolar>arp -a

Interface: 192.168.1.104 --- 0x3
Internet Address Physical Address Type
192.168.1.1 d8-5d-4c-d9-df-73 dynamic
192.168.1.100 34-68-95-05-37-c7 dynamic
192.168.1.102 10-08-b1-38-ad-ac dynamic
192.168.1.255 ff-ff-ff-ff-ff-ff static
224.0.0.22 01-00-5e-00-00-16 static
224.0.0.252 01-00-5e-00-00-fc static
224.0.0.253 01-00-5e-00-00-fd static
239.255.255.250 01-00-5e-7f-ff-fa static
255.255.255.255 ff-ff-ff-ff-ff-ff static

C:\Users\Kolar>print route
Unable to initialize device PRN

C:\Users\Kolar>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : KOLAR
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Ethernet:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
Physical Address. . . . . . . . . : 38-2C-4A-35-FA-23
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Połączenie lokalne* 2:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter
Physical Address. . . . . . . . . : 1E-93-A2-A6-DE-02
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wi-Fi:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Qualcomm Atheros AR956x Wireless Network Adapter
Physical Address. . . . . . . . . : 5C-93-A2-A6-DE-02
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::e80a:a414:781f:fca8%3(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.104(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : czwartek, 11 lutego 2016 00:58:27
Lease Expires . . . . . . . . . . : poniedziałek, 15 lutego 2016 11:57:16
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 39621538
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1E-05-BF-F6-38-2C-4A-35-FA-23
DNS Servers . . . . . . . . . . . : 194.204.159.1
194.204.152.34
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter Połączenie lokalne* 4:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2001:0:5ef5:79fb:2415:9a10:ace2:8d16(Preferred)
Link-local IPv6 Address . . . . . : fe80::2415:9a10:ace2:8d16%8(Preferred)
Default Gateway . . . . . . . . . : ::
DHCPv6 IAID . . . . . . . . . . . : 335544320
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1E-05-BF-F6-38-2C-4A-35-FA-23
NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter isatap.{0B14A34C-5F4F-4FCF-B956-CD8F31A95A21}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

C:\Users\Kolar>



Przy necie działającym, przesyłam screena.

Did you disable DHCP server in 841?

Show status page with 841.

Yes, DHCP is turned off on 841. Currently, I have DD-WRT loaded there, which I have uploaded to check if it is the fault of TP-Link software, but after the change (a few weeks ago) the problem is the same. Screen below.


I wonder if this is not the fault of these transmitters, but I don't know how to check it exactly. The signal between them is quite good:

Draw a diagram, place all devices, powerline, router, RJ45 ports.

ping 192.168.1.1
ping 192.168.1.2

do both pings work as is net?

do both pings work if there is no net?

Diagram:


There is a net:


No net (192.168.1.1 net is back at the end of pinging):

> Let me add that after the access point has been reset, the internet works again.
try to upload original software or gargoyle.

The problem was on the original firmware, which is why I installed DD-WRT and it's the same. I'll try with Gargoyle.

Check 8901 === powerline cable, either factory-made or _must_ be crimped according to T568A or T568B.

It is factory-made, crimped according to T568B.

How many mbs do powerline adapters tighten?
It should be shown in the tplink program for adapters.

If there is no net, you can see both adapters in the tplink program?
- from page 8901?
- from page 841?

If there is no net, is there a net over the cable to the 8901?

If there is no net, what is the state of the LEDs on the adapters?

The adapters are currently clamped at about 70 Mb / s, while on the first floor the adapter is plugged in by a thief, when I plug it in directly, it is about 113 Mb / s. I have an internet connection of 7-8 Mb / s, so it is enough.

On the 8901G, the internet is available all the time, even when the net on the 841 is cut off (but I don't know how it is over the cable, because it connects to the 841 via wifi).

After cutting off the net in the Tp-Link program, the adapters can see each other, certainly from the 841 side, I haven't checked the 8901.

I am also wondering if this is not the fault of the wifi in 841, I did not have time to check if the internet also cuts off the cable. The SSIDs are the same on both routers, channels are different, so it shouldn't be a problem, I guess?

Check on the cable on 841
Set the SSID different

Added after 1 [minutes]:

I suspect that it unfastens the powerline, try it without a thief.

In the end, I was able to check on the 841 cable, the symptom is the same.

Does this mean that the transmitters are definitely disconnecting? I will check this week by connecting the transmitter at the top directly to the socket (not through the thief), but the problem is that I do not have 2 sockets close to each other. Will the use of a double flush-mounted socket be verifiable? Ie. I mean, will it be the same as with the thief or not?

If this does not work, I will return the Tp-Link transmitters and buy others, because on the Internet I found a few topics related to these transmitters, where it was stated that it is a manufacturing defect.