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On rethinking this I realised that one of my HBs goes thru two switches before the router. So that setup in itself should not be a problem. They are mixed Netgear and Cisco switches into a Netgear D7800 router then BT fibre broadband. Never had any problems.
My Humax HDR-1000S box is NOT to blame for my network lockups!
Its locking up was a sympton of my network issues, not the cause. It seems that the Humax box is quite sensitive to network issues which can cause it to lock up.
My previous post said that when I connected the Humax box directly to the switch at position 3) that it started to work.
This got me thinking. I had replaced the switch at position 3), a Netgear GS605 v2, with an identical spare one. I then made the mistake of not leaving the network for some time to see if the problem had gone, but instead I used this removed switch to replace the switch, a Netgear GS105 v4, below the TV and behind the Humax box, at position 4).
It was this switch, the Netgear GS605 v2, that the Humax then had problems with and caused it to display the “LAN cable is unplugged/plugged” messages.
So then I removed this switch from position 4) and put back the original Netgear GS105 v4 switch and the Humax box worked. That was last Thursday afternoon and it has been working ever since.
So a lesson for me:- when trying to solve a network issue, only change one thing at a time! Also, a Humax HDR-1000S locking up may be the symptom of the problem, not the cause!!
Paul
Indeed Paul, but if it sees disconnects and reconnects it could cause network problems with excessive DHCP requests.
It was a bit premature of me to say that my network lock ups was NOT being caused by the Humax HDR-1000S!
This morning I woke to find that my network had locked up and my wife unable to access the internet from her PC at position 1).
Switched on my downstairs PC at position 3) and changed it to have a fixed 192.168.0.x IP address instead of using DHCP. I then tried to ping the two networked printers that both have fixed IP addresses. I was able to ping the printer connected to the same switch at 3) that the PC is connected to but I was unable to ping the upstairs printer connected to the switch at position 1).
Next I tried the Humax box and it was locked up! I powered off/on the wall switch at position 4) rebooting every device at position 4) including the Netgear GS105 v4 switch.
The network started working immediately and my PC and that of my wife were able to access the internet.
In hindsight, I should have just powered off the Humax box! Powering off/on at the wall switch meant that the Humax box and switch were both rebooted.
The network lock up seems to take 4 or 5 days to occur. When it happens again I will only power off/on the Humax box so as to exclude the Netgear GS105 v4 switch as the cause of the network lock ups.
Paul
Is it possible that you may have bridged the network somewhere i.e. have two paths between the switches, as this sounds like a broadcast storm to me.
No, there is only a single cable between each of the switches.
The wiring of my home network has been as described above in my previous posts and hasn’t changed for many years. It has been working fine over this time until the recent lock ups began.
Paul
I do think the Humax could cause a network lockup if it indeed does think the network cable is constantly unplugged/plugged.
I don’t think I have ever read of any network problems with the HDR-1xx0S machines. It is possible the machine is sensitive to the voltage on the network cable, it may be worth testing it, capacitor decay could cause the switch voltage to vary.
“The network lock up seems to take 4 or 5 days to occur”
Does your router say what the DHCP lease period is?
The unplugged/plugged messages stopped when I removed the Netgear GS605 v2 switch and replaced it with the Netgear GS105 v4 switch and they have not recurred.
Quote:“The network lock up seems to take 4 or 5 days to occur” Does your router say what the DHCP lease period is?Logged into the BT Home Hub5 and the lease time is 1 day.
Just before replying to your post I checked the Humax box and found that I couldn’t wake it up using the power button on the handset or by holding in the power button on the front of the box. Looking at the ethernet cable connection at the back showed its lights flashing vigorously!
Removed the power jack from the Humax box and after a short time replaced it. I was then able to wake up the Humax box using the power button on the handset and watch live TV, access the TV Guide and look at my recordings. I then powered off the box using the the power button on the handset.
After powering off the Humax box I looked at the ethernet cable connection at the back and there were no flashing lights.
Paul
PaulMcI – 4 minutes ago »
The unplugged/plugged messages stopped when I removed the Netgear GS605 v2 switch and replaced it with the Netgear GS105 v4 switch and they have not recurred.
Quote:“The network lock up seems to take 4 or 5 days to occur” Does your router say what the DHCP lease period is?Logged into the BT Home Hub5 and the lease time is 1 day.
Just before replying to your post I checked the Humax box and found that I couldn’t wake it up using the power button on the handset or by holding in the power button on the front of the box. Looking at the ethernet cable connection at the back showed its lights flashing vigorously!
Removed the power jack from the Humax box and after a short time replaced it. I was then able to wake up the Humax box using the power button on the handset and watch live TV, access the TV Guide and look at my recordings. I then powered off the box using the the power button on the handset.
After powering off the Humax box I looked at the ethernet cable connection at the back and there were no flashing lights.
Paul
So what do you surmise from what you have done so far.
Quote:So what do you surmise from what you have done so far.Not sure what to think apart from my Humax box is on the way out.
On the bright side, at least so far my recordings haven’t disappeared which happened with my first HDR-1000S box that this one replaced and others posting to this forum are expeiencing at the moment.
My Humax box had locked up again tonight! This time there were no ethernet flashing lights activity.
Pulled/replaced the power lead to reboot and then unlinked the Freesat app in Settings to see if that changes anything.
Paul
If this was my problem I wouldn’t even be looking at the Humax as being the issue. You appear to have quite an extensive home network with numerous ethernet switches. That is where I would be looking, I thought my HN was quite large but it is nothing compared with yours. I now rely on devolo Homeplugs in my main rooms and just one 6 port ethernet switch.
Since I paired mine down in this way the whole thing runs like clockwork (touch wood).
Paul, you sound like you are the sort of person like me that has a few old routers around. I suggest you connect the Humax to one with a DHCP server enabled and try it unconnected to the internet to see if it has any problems apart from no on-demand.
On question I missed was does any of the kit, especially the switches, have power saving features?
Quote:If this was my problem I wouldn’t even be looking at the Humax as being the issue.As I said in the previous post #19, after the last network lock up the powering off/on of everything at position 4) made the whole network work immediately.
I am concentrating on the switch at postion 4) and everything connected to it. The following are connected to this switch (several weeks ago I changed the Amazon Fire box to use wifi and not a wired connection):
Humax HDR-1000S
Samsung blu-ray player
Panasonic TV
This afternoon I disconnected the blu-ray player and the TV leaving only the Humax box connected to the switch.
I will monitor my network following these changes.
Quote:Paul, you sound like you are the sort of person like me that has a few old routers around.At the last count I had 6, 5x various Netgear routers and 1x BT Home Hub3.
Quote:I suggest you connect the Humax to one with a DHCP server enabled and try it unconnected to the internet to see if it has any problems apart from no on-demand.I will try this after I monitor the latest changes that I have made to my network setup.
Quote:One question I missed was does any of the kit, especially the switches, have power saving features?They are all dumb Netgear switches with no power saving features.
Paul
A few minutes ago I noticed that my downstairs PC at position 3) was unable to access the internet. My wife’s PC upstairs at position 1) was still able to access the internet.
I checked the back of the Humax box and its ethernet connection lights were flashing continuously.
Pulled out the power lead from the Humax box and after several minutes replaced it (I probably should have checked whether the Humax had locked up before powering it off/on). This time I didn’t power off/on the switch at position 4).
After powering off/on the Humax box the downstairs PC was immediately able to access the internet!
This seems to indicate to me that the locking up of the Netgear switch at position 3) was caused by the Humax box. Also, if I had not noticed the locking up then it would have spread eventually to the master Netgear switch at position 0).
Paul
I have a netgear semi-managed gig switch (GS724), and it has two power saving modes, one is to detect short cables, the other is green power, which powers down unused ports.
Some devices really don’t work properly – my old PS3 for example – it takes a long time for the switch to recognise the PS3 has been turned on, by which time the PS3 has decided to sulk. I turned off green power and short cable detection on the PS3’s switch port and the problem went away.
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