Diodes on router and icons at PC shows that everything is ok but internet doesn´t work

[davkom.dk]

Hello,
Two weeks ago internet stopped working. All diodes on router and icons at PC (at all PCs which were connected to the wifi) showed that everything is ok, but internet just didn´t work.
So I tried ethernet cable and it worked (but only a few domains). But it worked for just a couple of hours and than I had to restore it to defalut and reset the info (MAc adress, dynamic connection, host name) to make it work again.
After this procedrue wifi started to work, but again only for a couple of hours. Today it stops working entirely (but the diodes and the icons still signalize that everything should be ok).
We also tried a new router, but it didn´t work as well (after we configured everything, the same problem appeared, anyway after we connected te first, older router, it worked again for a few hours.).
Firmware is updated. Modem is used by multiple users, cable is new, ISP is trustworthy and several people at the house are using the same one, so I don´t think there is the problem either.
I haven´t found any similar problem at internet discussion and no1 seems to know what is actually happening.
I also tried to change DHCP adress pool, it didin´t work. I am getting pretty frustrated :-(
Here is ipconfig/all
Windows IP Configuration

Host Name . . . . . . . . . . . . : DESKTOP-KAFEKA5
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Mixed
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : Belkin

Wireless LAN adapter Připojení k místní síti* 1:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter
Physical Address. . . . . . . . . : 1E-E0-10-0C-49-45
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Ethernet:

Connection-specific DNS Suffix . : Belkin
Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
Physical Address. . . . . . . . . : 68-F7-28-9F-5E-74
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::d4a7:86ee:5ae3:d851%7(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.2.2(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : středa 2. března 2016 15:17:19
Lease Expires . . . . . . . . . . : sobota 8. dubna 2152 22:04:08
Default Gateway . . . . . . . . . : fe80::1%7
192.168.2.1
DHCP Server . . . . . . . . . . . : 192.168.2.1
DHCPv6 IAID . . . . . . . . . . . : 124319528
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1E-10-E6-F4-68-F7-28-9F-5E-74
DNS Servers . . . . . . . . . . . : fe80::1%7
192.168.2.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Wireless LAN adapter Wi-Fi:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : mshome.net
Description . . . . . . . . . . . : Qualcomm Atheros AR956x Wireless Network Adapter
Physical Address. . . . . . . . . : AC-E0-10-0C-49-45
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

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. . . . . . . . . . . : 2001:0:9d38:6ab8:18fb:6b0:92ae:48fc(Preferred)
Link-local IPv6 Address . . . . . : fe80::18fb:6b0:92ae:48fc%11(Preferred)
Default Gateway . . . . . . . . . : ::
DHCPv6 IAID . . . . . . . . . . . : 369098752
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1E-10-E6-F4-68-F7-28-9F-5E-74
NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter isatap.Belkin:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : Belkin
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #4
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

C:\Users\David>ipconfig/all

Windows IP Configuration

Host Name . . . . . . . . . . . . : DESKTOP-KAFEKA5
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Mixed
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : Belkin

Wireless LAN adapter Připojení k místní síti* 1:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter
Physical Address. . . . . . . . . : 1E-E0-10-0C-49-45
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Ethernet:

Connection-specific DNS Suffix . : Belkin
Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
Physical Address. . . . . . . . . : 68-F7-28-9F-5E-74
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::d4a7:86ee:5ae3:d851%7(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.2.2(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : středa 2. března 2016 15:17:19
Lease Expires . . . . . . . . . . : sobota 8. dubna 2152 22:04:27
Default Gateway . . . . . . . . . : fe80::1%7
192.168.2.1
DHCP Server . . . . . . . . . . . : 192.168.2.1
DHCPv6 IAID . . . . . . . . . . . : 124319528
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1E-10-E6-F4-68-F7-28-9F-5E-74
DNS Servers . . . . . . . . . . . : fe80::1%7
192.168.2.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Wireless LAN adapter Wi-Fi:

Connection-specific DNS Suffix . : Belkin
Description . . . . . . . . . . . : Qualcomm Atheros AR956x Wireless Network Adapter
Physical Address. . . . . . . . . : AC-E0-10-0C-49-45
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::a4d5:b40e:103b:1259%5(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.2.3(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : středa 2. března 2016 15:36:00
Lease Expires . . . . . . . . . . : sobota 8. dubna 2152 22:04:27
Default Gateway . . . . . . . . . : fe80::1%5
192.168.2.1
DHCP Server . . . . . . . . . . . : 192.168.2.1
DHCPv6 IAID . . . . . . . . . . . : 44883984
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1E-10-E6-F4-68-F7-28-9F-5E-74
DNS Servers . . . . . . . . . . . : 192.168.2.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.Belkin:

Connection-specific DNS Suffix . : Belkin
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #4
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::5efe:192.168.2.2%18(Preferred)

 

[Sasqui]

ISP through cable modem? First thing to always check (layer 1) are cables. If there is the slightest thing wrong with one the whole system may fail. Faulty cable, faulty connector(s)

 

[rtwjunkie]

ISP through cable modem? First thing to always check (layer 1) are cables. If there is the slightest thing wrong with one the whole system may fail. Faulty cable, faulty connector(s)

Mine has gone out twice in the last year. First time was on the delivery side outside at the cable housing, and last week the modem died.

OP: Welcome to TPU! If all else checks out, then have the cable company check the problem out and fix. It could easily be one of the things I mentioned.

 

[Sasqui]

last week the modem died.

A friend had Comcast come by just this morning to replace their cable modem gone bad. SSID's would mysteriously dissapear, logging into the router revealed they we still assigned, it starts working but doesn't ask for a key any more even though there's on assigned for each channel, then the SSID's disappear again!

 

[brandonwh64]

This is why I distrust modem/router combos. With separate devices you can test them individually on LAN and WAN.