Slow LAN transfers

[InventorOfEvil]

Greetings,

About a month ago now, I built a new machine with this motherboard

ASRock Z68 PRO3

Anyway, long story short, not only do the front panel USB connectors not seem to work, but I'm getting extremely low transfer speeds over my LAN. I'm fairly certain it is the onboard NIC as I've tested my other PC transferring things to my file server and there was no issue at all for either machine. I've also ruled out the network cable and hard drives, in addition to checking for new drivers. I'm to the point now where I'm pretty sure the network card is dead. I don't feel like losing my desktop for, possibly weeks, due to an RMA, so I'm considering purchasing a new NIC. I'm fairly certain this will solve my issue, but I'm wondering if anyone else has any ideas. Does this motherboard tend to have issues like this?

Thanks

 

[Tsavo]

What speed do you consider extremely slow?

What OS are you using?

Assuming everything in your PC is hunky-dory, I've had some limited success with disabling Remote Differential Compression (MS says this doesn't work, but it does...but not always) and having a go from there.

I quit using onboard NICs years ago and use Intel NICs exclusively. I've not had a *single* problem with my network in this time and my xfers push 105 MB/s sustained unless I'm trying to pack my titty porn directory to a network drive in which case my NICs spend more time inspecting those particular titty packets for errors than anything esle (slow xfers for lots of small files are common, right around down to 90ish MB/s in my case).

I also swap out crappy wireless units in laptops for Intel units...instant stability and speed.

 

[InventorOfEvil]

As for extremely slow: 12KB/s

OS is 7, though I've also tried Ubuntu and it seems to persist there--though I will need to double check this.

 

[Minion4Hire]

As for extremely slow: 12KB/s

OS is 7, though I've also tried Ubuntu and it seems to persist there--though I will need to double check this.

If it persists across operating systems then this is likely either a hardware problem with your NIC, or there's some other problem (such as cabling - just saying)

Question though: Is it definitely 12 KBps? Not 12 MBps? Because the latter would suggest that you're only connecting at 100 Mbps which would help explain the "universal" nature of your symptoms. That could be as simple as a BIOS setting or a cable issue, or even a port detection problem on your system or your router.

 

[InventorOfEvil]

If it persists across operating systems then this is likely either a hardware problem with your NIC, or there's some other problem (such as cabling - just saying)

Question though: Is it definitely 12 KBps? Not 12 MBps? Because the latter would suggest that you're only connecting at 100 Mbps which would help explain the "universal" nature of your symptoms. That could be as simple as a BIOS setting or a cable issue, or even a port detection problem on your system or your router.

It's 100Mbs. The PC is reporting 1Gbs LAN, however, my cables are only CAT5.

Anyway, cabling is definitely ruled out, brand new cable solved nothing; plus the fact that the other PC is just fine with the same cable.

It is most certainly 12KBps.

Also, router settings all seem proper. I've checked the BIOS over and as I recall, found nothing; however, it merits another check.

 

[mindless1]

Is the other PC going through the same networking equipment (and same equipment ports) when it tests ok?

I had terribly slow LAN transfers for a while due to capacitors in a switch going bad. Took me a while to figure it out since the switch still worked at the slow speed and the capacitors weren't vented, but sure enough after swapping another switch in, then replacing the capacitors and returning the old one to service, everything worked fine again.

FWIW, my switch that went bad was a Netgear, and I had even drilled a lot of extra vent holes in its casing anticipating thermal issues when it was new (was about 4 or 5 years old running 24/7 at point of failure), but the problem could happen to most consumer grade network gear due to use of electrolytic capacitors and poor passive cooling.

 

[THRiLL KiLL]

i agree with the above post. Try a different port on the router/switch

also. the network cable is it running near anything that can cause interference? like large speakers or electric cords?

 

[InventorOfEvil]

i agree with the above post. Try a different port on the router/switch

also. the network cable is it running near anything that can cause interference? like large speakers or electric cords?

I'd considered that this might be an issue, but ruled it out after I strung a new cable and avoided any potential interference. Moreover, ports are ruled out, as the new cable was connected to a different port on the router.

As far as my router goes, it's a Belkin N+ with decent cooling. It's about three years old now, but I'm fairly certain it's not the problem.

 

[runejpunk]

I also got the same problem with my 2 asrock Z68 Pro3-M and using win 7. When I tried to pull some file from PC A (Using Asrock Z68 Pro3-M) from any PC (Win 7), it only got 3-18kbps. But, if I pull some file From any PC to PC A it has normal speed >10mbps.

But it doesn't happen when I try to pull/push from/to any PC that using Win 2003 server. I think it's kind of Asrock's NIC bug.

 

[mclife]

I was having this exact same problem. I resolved it by installing Asrock XFast LAN. Now things are working as expected. http://www.asrock.com/feature/XFastLAN/index.asp

 

[mindless1]

^ Your problem seems different if that software cured it. When it's a prioritization issue you'll see the concurrent traffic (before and after too) during the sluggish period.