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| Thread ID: 139051 | 2015-03-02 03:14:00 | Router/network adapter (or something else?) problem | Tony (4941) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 1395534 | 2015-03-02 03:14:00 | This replaces the thread which was about choosing a router and morphed into a more general problem-solving discussion. Here's the scenario: PC with two network adapters, one on board, one on a card. New VDSL router. Also a laptop on the network - all wired. Here's the problem: Periodically the connection between the router and the PC gets lost. Can't connect to anything. If I disable/enable the network adapter it usually kicks it back into life, although sometimes it takes a couple of tries. This can happen whichever of the network adapters is being used. I can ping the router, but can't ping anything on the other side. This behaviour does not happen with the laptop. The PC can be incommunicado, but the laptop is still connecting. Rebooting the router also starts everything up again. What I know (I think...): It is not the router itself, as the same behaviour occurred with the previous ADSL router. It is not the cable, for the same reason. It does not appear to be the network adapter(s) on the PC as the same thing happens with both of them. The drivers on the network card are up to date. Not sure about the on board adapter. If I set up a continuous ping (ping 8.8.8.8 -t) the connection seems to stay alive as long as the ping is happening. Any ideas will be very welcome. |
Tony (4941) | ||
| 1395535 | 2015-03-02 03:40:00 | yeah the other thread did get abit side tracked. Suggestion.--- You need to pin point where the problem is exactly. This is a Test -- Unplug the Computer and plug in the laptop using the exact same cable,Port everything see if it still does it. The Computer may be out of the loop for a while, but if everything works as it should then the problem has a high percentage of being the PC. Doing this only one thing will have been changed. As sure as its Sunday, if you change more than one thing you wont know whats causing it. |
wainuitech (129) | ||
| 1395536 | 2015-03-02 03:49:00 | You're quite right about only changing one thing. I think I did try this way back early in the piece, but I'll do it again and see what happens. | Tony (4941) | ||
| 1395537 | 2015-03-02 21:22:00 | Diasable all power save functions in the network cards 'driver' in device manager. Some drivers also drop link speed as part of power save, that might can cause issues so disable that as well. |
1101 (13337) | ||
| 1395538 | 2015-03-02 23:24:00 | Diasable all power save functions in the network cards 'driver' in device manager. Some drivers also drop link speed as part of power save, that might can cause issues so disable that as well.I'll check again but I think I've already done that. Update to Wainui's suggestion - I've been running the laptop in place of the PC and it hasn't stopped. I still have the PC on the network and it has. Still early days to draw any conclusions, as there are a couple of other variables I want to check out. |
Tony (4941) | ||
| 1395539 | 2015-03-06 22:56:00 | Looking interesting... It took me a while to find the time, but I now have the system stripped down. Yesterday I just connected the PC and the printer to the Zyxel via the network adapter card. Everything has been perfectly smooth with no lost connections between PC and router. Laptop and phone connecting wirelessly via the router with no probs. Today I added the WHS PC back to the router, and so far it is still all smooth. I'll keep adding things back until I hit a glitch (or not...) |
Tony (4941) | ||
| 1395540 | 2015-03-08 04:09:00 | ...PC with two network adapters, one on board, one on a card... Is there any particular reason why you have two network ports on the PC? (or have I misread something) - What happens if you remove the network card and just use the on-board port? |
decibel (11645) | ||
| 1395541 | 2015-03-08 08:17:00 | Is there any particular reason why you have two network ports on the PC? (or have I misread something) - What happens if you remove the network card and just use the on-board port?It goes back a long time, to when I first started having these loss of connection problems - with the on board port. I bought a network card to "solve" the problem, which it seemed to do until recently. I wasn't going to post again until I had finished experimenting but ATM everything is working perfectly. I now have nearly the full configuration back at it hasn't missed a beat. It makes me wonder whether there was a physical problem like a slightly dodgy connection which has been fixed since I have been unplugging and replugging stuff all over the place. Stay tuned... |
Tony (4941) | ||
| 1395542 | 2015-03-12 22:20:00 | The situation has got weird again. The attachment shows my network setup. It appeared that the problem was when the "home security hub" was connected. This is a proprietary box that supplies ethernet all over the house. If I unplugged the red (in the diagram) cable, everything was running smoothly. If the cable was plugged in I could only go for a short time (10 mins maybe) before it locked up. I've removed the separate network card in the PC to remove a variable. I've been running without the suspect connection for a few days now and everything was great. However over the last 24 hours or so I've gone back to the situation where if the system is idle for a while (maybe 30 mins?) I am losing the connection. I can ping the router and the internal network is accessible, but the outside world is not. If I disable/enable the adapter everything kicks into life until the next time. It is not nearly as bad as it was when the "red connection" was active, but is still annoying. Nothing in my setup that I can think of has changed. To forestall some of the questions, I am 100% certain it is not the cables as I have tried different ones to no effect. It also mattered not whether the "red connection" was from the Zyxel router or the Cisco switch. 6287 |
Tony (4941) | ||
| 1395543 | 2015-03-12 22:37:00 | You're not running any kind of file sharing or anything when this happens? Some routers fall over if too much traffic hits them all at once but can be perfectly fine otherwise. Also different OS's or versions can behave differently on the network causing different symptoms. Maybe reducing the amount of traffic on the network is what makes it more stable? I had a router previously that I could crash by connecting a PC running XP and starting a torrent download, any PC, any torrent, as long as it was XP. Windows 7 running the same torrent - no issues. Thought I was going bonkers at the time until I figured out the common cause and managed to cause the crash on demand to prove it. I've since replaced the router but at the time it was the catalyst for me finally dropping XP entirely. |
dugimodo (138) | ||
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