Router conflict with switch

[Anthony5]

20 hours ago, thedemon said:

 

You mentioned in an earlier post that you swapped the switch and there were no issues. Therefore I think the chances are very high that replacing the router is going to yield the same result unless you get a different model router and then who knows.....

 

I think you need to change the switch.

 

Or a cheaper solution would be to buy a small (5 port) gigabit switch to connect your router and PC and then connect that to the DLink switch for all the cameras etc. Cost would be a few hundred Baht.

 

 

I haven't purchased a Gigabit switch yet, but have no connected the router as follows

 

Port 1 goes to wall socket in room with the android box with 1000Mb LAN attached but which is switched off

 

Port 2 goes to wall socket in another room with similar device attached but which also is switched off.

 

Port 3 goes to Port 1 of the switch

 

Port 4 goes to PC which has 1000Mb LAN adapter.

 

After only 30 minutes the log already reports Port 1 and 3 have been down and up again.

 

Can we now assume the router is faulty?

Edited September 10, 2016 by Anthony5

[mtls2005]

Can we now assume the router is faulty?

 

Well, I confess to be totally confused as to what you're doing now, but I am pretty sure at least one of us asked if all four ethernet ports on the Asus router worked - without any switch in the network - and I think you said yes. So my guess is that the router is NOT faulty. 

 

My best guess at this point, and this will be my absolute last contribution, is that there is an issue with the connection from your Asus device to your switch. You are connecting to the wrong port on the switch, or using the wrong type of cable. But that's just my last guess based on a confusing number of posts.

 

[Anthony5]

1 hour ago, mtls2005 said:

Can we now assume the router is faulty?

 

Well, I confess to be totally confused as to what you're doing now, but I am pretty sure at least one of us asked if all four ethernet ports on the Asus router worked - without any switch in the network - and I think you said yes. So my guess is that the router is NOT faulty. 

 

My best guess at this point, and this will be my absolute last contribution, is that there is an issue with the connection from your Asus device to your switch. You are connecting to the wrong port on the switch, or using the wrong type of cable. But that's just my last guess based on a confusing number of posts.

 

 

Why don't you read what I write instead of getting on your high horse?

 

Port 1-2 and 4 of the router are NOT connected to the switch NOW. I tried out another configuration TODAY before I spend some extra money on a Gigabit switch how little that also may be..Port 1 -2 and 4 from the router  are now directly connected directly by Cat5E wire to the wall sockets and the PC.

 

However the devices connected to the respective wall sockets are SWITCHED OFF the router syslog says the LAN 1 and LAN 3 got interrupted ( down and 2 seconds later up again) ONLY port #3 is connected to the switch.

 

LAN#4 probably goes down when I put my PC to sleep and up again when I wake the PC.

 

LAN #1 is connected directly to a wall socket with a device that is switched off

 

EDIT : I notice now that between the wall socket and the switched off device is a 5 port 100Mb switch, which probably cause the error. So the router is seemingly also in conflict with that 5 port switch.

 

LAN #3 is connected to the switch

 

2016-09-10 11:53:14 kernel: Link State: LAN_2 down.
2016-09-10 11:53:53 kernel: Link State: LAN_4 up.
2016-09-10 11:54:58 kernel: Link State: LAN_2 up.
2016-09-10 11:55:34 kernel: Link State: LAN_1 up.
2016-09-10 11:58:50 kernel: Link State: LAN_3 up.
2016-09-10 12:25:01 kernel: Link State: LAN_1 down.
2016-09-10 12:25:03 kernel: Link State: LAN_1 up.
2016-09-10 12:31:29 kernel: Link State: LAN_3 down.
2016-09-10 12:31:31 kernel: Link State: LAN_3 up.
2016-09-10 12:41:10 kernel: Link State: LAN_1 down.
2016-09-10 12:41:27 kernel: Link State: LAN_1 up.
2016-09-10 12:55:33 kernel: Link State: LAN_4 down.
2016-09-10 13:02:01 kernel: Link State: LAN_1 down.
2016-09-10 13:02:03 kernel: Link State: LAN_1 up.
2016-09-10 13:06:36 kernel: Link State: LAN_3 down.
2016-09-10 13:06:38 kernel: Link State: LAN_3 up.
2016-09-10 13:16:52 kernel: Link State: LAN_1 down.
2016-09-10 13:16:55 kernel: Link State: LAN_1 up.
2016-09-10 13:35:49 kernel: Link State: LAN_3 down.
2016-09-10 13:35:53 kernel: Link State: LAN_3 up.
2016-09-10 13:41:42 kernel: Link State: LAN_1 down.
2016-09-10 13:41:47 kernel: Link State: LAN_1 up.
2016-09-10 14:05:12 kernel: Link State: LAN_3 down.
2016-09-10 14:05:16 kernel: Link State: LAN_3 up.
2016-09-10 14:05:19 kernel: Link State: LAN_1 down.
2016-09-10 14:05:22 kernel: Link State: LAN_1 up.
2016-09-10 14:30:29 kernel: Link State: LAN_1 down.
2016-09-10 14:30:33 kernel: Link State: LAN_1 up.
2016-09-10 14:34:27 kernel: Link State: LAN_3 down.
2016-09-10 14:34:29 kernel: Link State: LAN_3 up.
2016-09-10 14:40:55 kernel: Link State: LAN_4 up.

Edited September 10, 2016 by Anthony5

[Gulfsailor]

I have a feeling your cat wall sockets are iffy. A bad connection there can really screw up things in modern 1gb networks. 

[Anthony5]

1 hour ago, Gulfsailor said:

I have a feeling your cat wall sockets are iffy. A bad connection there can really screw up things in modern 1gb networks. 

 

How would I check that?

 

LAN 1 and LAN 3 keep playing up however I have removed the small switch at the wall socket of LAN 1.

 

The only one that hasn't gone down yet is LAN 2, which is connected to the wall socket in another room.

 

I will now swap the cables connected to LAN 1 and LAN 2, and if LAN 1 then still plays up it can't be mistaken that the port is bad.

[Anthony5]

Getting really confused now. Currently testing with Live IPTV playing on LAN 2. Hasn't given a hick, though the log says LAN 2 has been down 2 times in the past few minutes and for as long as 4 seconds

 

2016-09-11 09:52:39 kernel: Link State: LAN_2 down.
2016-09-11 09:52:41 kernel: Link State: LAN_2 up.
2016-09-11 09:56:48 kernel: Link State: LAN_2 down.
2016-09-11 09:56:52 kernel: Link State: LAN_2 up.

 

[thedemon]

3 hours ago, Anthony5 said:

Getting really confused now. Currently testing with Live IPTV playing on LAN 2. Hasn't given a hick, though the log says LAN 2 has been down 2 times in the past few minutes and for as long as 4 seconds

 

2016-09-11 09:52:39 kernel: Link State: LAN_2 down.
2016-09-11 09:52:41 kernel: Link State: LAN_2 up.
2016-09-11 09:56:48 kernel: Link State: LAN_2 down.
2016-09-11 09:56:52 kernel: Link State: LAN_2 up.

 

 

When you run a constant ping from your PC to the router is it consistent?

 

If it is, then just ignore those logs.

 

If you really believe the router is dodgy, have you checked that it is running the latest firmware (Version 1.1.1.2)?

 

https://www.asus.com/Networking/DSL-AC52U/HelpDesk_Download/

 

 

[Anthony5]

43 minutes ago, thedemon said:

 

When you run a constant ping from your PC to the router is it consistent?

 

If it is, then just ignore those logs.

 

If you really believe the router is dodgy, have you checked that it is running the latest firmware (Version 1.1.1.2)?

 

https://www.asus.com/Networking/DSL-AC52U/HelpDesk_Download/

 

 

 

 

Yes latest firmware.

 

I still continue testing, and found that the log isn't meaningless, because when I change the Live stream to a HD I can notice the interruption but not with a SD stream.

 

I also found that the culprit is the 5 port d-ling switch that is connected between wall socket and android box, because when I remove it no interruptions anymore.

 

So either the router has conflicts with all D-link switches, as it clearly hasn't with a TP-link switch, or the switches are faulty but no real idea how to check that.

 

Right now I have the LAN from the router connected to the TP-Link switch, from which I go to the wall socket > 5 port d-link switch > android box.

 

The problem is that even when I manually disconnect the LAN cable at the wall socket, the router log doesn't see that.

 

I hope to find something in my Kodi log that shows there has been an interruption in internet connection.

 

Any other suggestion how to check if the switches are faulty?

[thedemon]

I would just use ping to test that.

 

From a command prompt type ping /t 192.168.1.1

 

Obviously modify the above if your router IP address is different than the default.

 

From what you mentioned I am assuming that your PC is connected via LAN, not WiFi. In that case the ping should be returning time<1ms every time.

 

If it isn't, keep swapping components until it does.

[Anthony5]

2 hours ago, thedemon said:

I would just use ping to test that.

 

From a command prompt type ping /t 192.168.1.1

 

Obviously modify the above if your router IP address is different than the default.

 

From what you mentioned I am assuming that your PC is connected via LAN, not WiFi. In that case the ping should be returning time<1ms every time.

 

If it isn't, keep swapping components until it does.

 

OK, this is my setup.

The router is connected to the TP-link 10/100 switch. From the TP-link switch I connect to my PC and another connection goes to the wall socket in another room. That wall socket connects to a 5 port D-link 10/100 switch to which my Android device is connected.

 

I ping the Android device and get a ping of 1or 2ms, occasionally it will read <1ms. Is this an acceptable ping?

Distance ( length of the Ethernet cable from TP-Link switch to wall socket) is probably 20 meters.

 

I will let it run all night to see if I get package loss.

 

Edit to add: to my PC the ping is <1ms

Edited September 11, 2016 by Anthony5

[JaseTheBass]

I stopped buying anything from D-Link a while ago. TP-Link have been faultless over the last couple of years that I have used them both at work and at home.

Sent from my R2D2 using my C3P0 manservant

[Anthony5]

2 minutes ago, JaseTheBass said:

I stopped buying anything from D-Link a while ago. TP-Link have been faultless over the last couple of years that I have used them both at work and at home.

Sent from my R2D2 using my C3P0 manservant
 

 

That is currently also my feeling. It seems that the Asus router is allergic to anything D-link.

 

I'm now pinging the android device for a few hours, through the TP-link switch to the D-Link 5 port switch, and I haven't lost a single package yet.

 

If I go from the router straight to the 5 port D-Link switch I get timeouts every 30 minutes

 

The router connected to the 16 port D-Link switch also gives timeouts.

 

I also had 2 D-Link WIFI routers which I would have to reboot every 3 days or so, they froze up, and had to bin them both after only 2 years.