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Networking Help

Old 11-29-13, 05:17 PM
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Networking Help

Been having a really weird intermittent problem with my home wired network. Probably spent 3-4 hours on it the other week - thought I traced it to a cable, but now it's acting up again.

Have a patch panel in garage that runs to rooms. Have router upstairs in office (Fios) connected to Netgear which acts as DHCP host; complicated with computer and NAS. Everything else wired is in the living room. Randomly my contents in living room can't connect to network or internet.

Everything in living room is running through switch to wall, which runs to garage patch panel by way of another switch.

I've tried swapping the switch locations and same issue. I've used a laptop to try each location as well 1) direct to main router, 2) garage presenting, 3) garage post switch, and 4) living room to wall. Each returns same 50mbps/25mbps on Speed test.net. Then when I plug that same cable into either switch in living room things break down and no connection. Have tried different ports on switch. Either switch will show link activity for devices plugged in at the living room.

Logging in to router shows computer and AND hardwired. I have tried rebooting everything. I'm going batty trying to figure this out. When it works.it's snappy and fast.
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Old 12-01-13, 08:06 AM
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Re: Networking Help

What is all connected in the living room? Is there possibly a router in there that's not properly configured?
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Old 12-01-13, 08:25 AM
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Re: Networking Help

Living room connected to switch:

AVR
Sonos
BR Player
XBOX
TV
Roku

I did have a thought last night. I'll unplug everything from the switch and see if I can't connect stuff 1 by 1. I suppose it's possible something is causing interference?
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Old 12-01-13, 03:28 PM
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Re: Networking Help

That didn't work. Hooked something up in another room and it worked.

Both my switches are different brands. I wouldn't think that's an issue, but I'm starting to believe that is the problem. Thinking about ordering one of the same to see if they play nice.
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Old 12-04-13, 12:11 PM
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Re: Networking Help

Make sure that the FIOS router and the Netgear router are not both set up to hand out IP's
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Old 12-04-13, 12:23 PM
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Re: Networking Help

Originally Posted by Superman07 View Post
That didn't work. Hooked something up in another room and it worked.

Both my switches are different brands. I wouldn't think that's an issue, but I'm starting to believe that is the problem. Thinking about ordering one of the same to see if they play nice.
mismatched brands should not matter much in unmanaged switches as long as there is a technology match (don't mate a gig only switch to a 10mb one)

it would make more sense that one switch or port is going bad.

Always test cables first, they are cheap and easy to replace

Simplify the connections as much as possible for testing.

internet connection --> router/firewall ---> switch 1

I assume from your description that everything always works to switch 1

from switch 1 ---> switch 2 ----> 1 endpoint device

If you only have these items connected, does it work? If so, replace the "end point device" one by one with all your endpoint devices and see if one does not work correctly. I would also turn off all wireless while testing

It might make sense to wait until you have the problem acting up before trying this (if the problem is intermittent)
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Old 12-05-13, 10:21 AM
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Re: Networking Help

Yeah, I had done all that, including all swapping the switch locations. Last night I moved a switch to another room and it was working fine, so I was more puzzled.

I think I figured out that it's either a cable or the one wall jack. I wiggled and one device would go on and off for link status. I ordered some Cat6 cables and will look to get a new wall jack from the store.
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Old 12-05-13, 03:32 PM
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Re: Networking Help

^^ that makes the most sense, even cables that look fine can have issues. I see it all the time. If you have enough slack at the wall jack or patch panel, you can sometimes just cut a few inches off and re-punch and they work.
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Old 12-08-13, 07:41 PM
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Re: Networking Help

Swapped out the wall Jack and all is well. Only downside is I realized in-wall cabling is only Cat5. Not planning on staying here for too long, otherwise I'd look to change that up.
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Old 12-08-13, 09:12 PM
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Re: Networking Help

Originally Posted by Superman07 View Post
I realized in-wall cabling is only Cat5.
You plan on going to 10GbE sometime soon?

I know the prices are falling, but I still don't want to make the investment for my home 1 Gigibit Ethernet is fast enough for my use.

Cat 5 (yes 5 and not 5e) will run 1 Gigibit without any issues as long as your runs are not too long and your connections are clean.

I have even run 1 Gigibit speed over cat 3 (technically sub cat 3) and since the length of the run was pretty short it ran fine.
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