3 replies to this topic

[Wildstreak]

So from Traceroute and Ping tests I did with Support, I seem to be having latency issues between my computer to the router and the router to the modem.

Problem is these two connections are not covered by the service provider and the company that made the router does not support it as it is an older product.

So how do I find out about fixing latency on a router?

[ShinVector]

Which support ?
It is a bit hard without the details...

Troubleshoot further with your ISP further to find the exact cause. Could be cabling issues, hardware fault, your pc, viruses.., local loop issues... Many possibilities... Your ISP should be the one to narrow down the problem.
If it is confirmed faulty hardware... Get it replaced.

[Bad Karma 308]

Routers and NICs do go bad, just like any other piece of hardware. Also, if the Cat5/6 get stepped on, or kinked, then 1 or more of the 8 wires can break entirely or become intermittent.

Troubleshooting.....Esentially what you want to do is attempt to isolate the faulty equipment 1 piece at a time.

Trying rebooting your Router and see if that clears anything up (even if only temporarily), Next step would be to try reboot the modem. If things clear up (even temporarily) then you should have a good chance that you've found your culprit.

If you can swap out your ethernet cables (NIC to router & Router to Modem) with known good ones then that eliminates that possibility. Ethernet cables can be had for realativlly cheap but is of course based on length.

Last peice would be the NIC itself, if you motherboard has a second NIC switch to it and see what happens. Otherwise a 10/100/1000 NIC can be had for $29 and up.http://www.newegg.com/Product/Product.aspx?Item=N82E16833106033

10/100s can be had for even cheaper but as Intel is basically the gold standard for NICs, a $29 one will serve you well, even if you only use it as a test card. But many find that Intel NICs tend to be far more stable and with better latency reduction than most others.

If it is your router or modem then there isn't much you can do to fix them. Pretty much a direct swap out is what you're looking at.

Edited by Bad Karma 308, 28 April 2014 - 07:22 PM.

[Golrar]

Another thing you can try is hooking the PC direct to the Modem and then release/renew the IP on the PC. If the latency is gone, you know it is in that stretch between the two. I am sure the ISP had you do this, as it is the first thing to eliminate leased components (their responsibility). Also, log the latency to see if it only happens at certain times of the day. Did this just start as the weather got warmer? I notice from your profile you are in a colder climate. Expansion in the cable fittings can cause issues as well, but unless you can get somebody from the ISP to check it at the time it happens, they'll never know to check for it.

By any chance are you using a Linksys router with Wifi enabled (whether you use cable or not)? It is isn't supposed to affect latency, but I noticed with my old Lunksys 54WRTG if I didn't reboot the router at least once a day I would get a huge slow down. It was really odd. I have since upgraded to a Netgear WNDR3700-100NAS and all my problems went away.

Also, don't stack anything on top of your router. Hotter it gets, slower it goes. Best to stand it up if possible.

If you have Wifi enabled, do you have security or a MAC filter list turned on to disable hijacking by outside sources? If somebody is using you as the new Starbucks hotspot, that will cause latency as well.

I am not saying this is your issue, but the heat and reboot thing are the easiest to check for before checking cables and such.