Unbalanced link speeds (D-Link DIR-825)

[vasgyuszi]

Oh my dear, after a year of buying this router, I've discovered that one of the four links is working only with 10 mbit/s. 1-3 are fine, with gigabit connection, but the number 4 is slow as hell.
I see nothing within the setup to change the speeds link by link. It has been set to Auto/10/100/1000 in general. That's it.

What could be wrong? The HW? My FW is the original one (I'm pleasant with it) 2.01b (or something).

Thanks in advance for your hints or advices,
vasgyuszi from Munich

PS: to the router are two PCs and one media player connected by wire and one DAP-1522 via 5GHz. 2,4 GHz switched off.
By oversight I've connected one of my PC to the port4 instead of 3 and than I recognised this 10 mbit/s, displayed on the WinXP also. I've tried many cables without success. Back to the port 3 (or any other than 4) were the speed back again to Gbit. I'm out of ideas...

 

[Emulex]

sounds like bad switch if you've deduced that much. put a friggen gigabit switch in front of the router dude. trust me on that.

 

[vasgyuszi]

Thanks Emulex!
Where should I connect the extra switch? To the sick port (the Nr. 4)?
And thereaftercan I connect my PC to any ports of the extra switch?

I do still have the two years warranty on the eqipment, it's only a year old...
I'll try it.

Best regards,
vasgyuszi

 

[Harvey]

If you mean that one machine connected to the router is slow, have you tried switching the slow machine to another input on the router?

If so, and that machine remains slow on another input, delete and re-install the LAN driver on the slow machine.

If not, and another machine is slow on the same input, the problem is in your router.

< edit >

Oops. I just saw that you already tried that. N/M.

 

[JackMDS]

If you connect to the "sick port" you extend the sickness.

If you use something like this. You will end up with a better Giga.

2 free ports on the Router + 4 free port on the Switch.

http://www.newegg.com/Product/Produc...82E16833156250

 

[Crusty]

I would get a new gigabit switch, and attach it to one of the working ports, 1-3. Then attach all devices to the new gigabit switch. That way the only thing your router will be doing will be handling packets going out to the internet or from the wireless <-> wired devices. This will reduce the load on the router, which usually suck at gigabit switching anyways.

 

[vasgyuszi]

Guys, I'm impressed form your activity to help on me, thanks!

- the test PC were connected to all four ports, and only at Nr.4 has bee failed to achiev the gigabit speed level
- the router doesn't connected to the internet. It has "only" the role of multimedia interchange device between my internet-PC, storage-PC, one mediaplayer by wire and a second one over the air (5 GHz) with a DAP-1522 bridge (because the media player has only ethernet interface).

There is a warranty, may I try to replace it... I'll ask the retailer about it. Last days I spent some time to research on the net about D-Links RMA behaviour and I've read about alot of unhappy users... will see

I the current config I do use only three ports, the fourth is free as well as the WAN port. But there is no reserve to future developments. It sounds good to place a normal (non-WLAN) switch to one port of the router to expand the amounf of the interfeces.

Thank you all again!

Best regards,
vasgyuszi

 

[vasgyuszi]

By the way I have to reveal my early planning to the little home media network:
the storage_PC has an ASUS P5Q Premium motherboard in it with 4x ethernet ports, each gigabit. It runs an XP Professional there. But I couldn't configure perfectly the network to be able serving the wired mediaplayer, the internet-PC and the also connected WLAN-router. I've used only three of the foure ports, but I got alway problems with accessing of the materials on the storage-PC. Other guys told me that XP hasn't good routing capabilities against of the well equipped motherboard. Thereafter I changed the network topology to make the WLAN router as main dataflow interchange device and all the problems have been solved. It remains only a bad taste to buying unnecessary the expensive motherboard. I have deliberately chosen this model from ASUS because of its four gigbit interfaces.

Thanks for your patience,
vasgyuszi

 

[vasgyuszi]

Update:
boahhh, what's happened: I was to roaming within the admin setting jungle of the router and I had to reboot it because of a changing (multicast streaming enabled now).
And than happened: the port Nr. 4 has been speeding up to gigabit again!!! Wow!
The reboot caused healing of the crashed port... great. I'm happy now and thank you all for the replies!

Regrds,
vasgyuszi