grrr, thats with the modem in the cabinet downstairs, connecting via house ethernet to the pc upstairs?
Here's the ethernet testers at Lowes:
Looks like they are clearing out this model:
If you connect a remote device that has a gigabit port at the far end of the cable, and the LED on the modem only flashes green for 10/100 Mb/s, that tells you that the connecting cable is either damaged, not connecting properly at one end or the other, or that the cable is not connected to the connectors so that it will support gigabit rates. To do that, all 4 wire pairs in the cable has to be connected end to end, otherwise the device and modem will only communicate at a maximum of 100 Mb/s.
I also noticed this..
My laptop supports gigabit rates and I see AMBER LED on the modem when the laptop is connected via the provided cable. But noticed the modem only flashes GREEN when the laptop is connected via the house wired cable..
I will have to google and see if jacks on both ends are properly installed... I hope I'm on a right track..
Another note: the very first time (couple of days ago when we got the new modem) when the PC was connected via house ethernet cable on the modem, I actually saw we were getting over 300mbps (we have 250U) using speedtest.net.
Depending on the age of the home you would have an ethernet port on the wallplate that has screw down connector points where the cable is connected, or, keystones in a multi-keystone wallplate. That could have anywhere from 1 to 8 keystone slots. If its a screw down connector wallplate, then you have to figure out which wire goes where in order to run gigabit rates. That's a pain trying to figure it out. If its a keystone, then you can replace the keystone and punch the wires down into the keystone using the colour guide on the keystone itself. That is much easier to do but you would probably need to replace the keystone and buy the 110 Punchdown tool to use.
If you pull the wallplate off of the wall and have a look at the Cat-5e (?) cable, you will probably see that only two of the 4 wire pairs in the cable are connected. The other two pair might be pulled back along the cable or cut off. That will tell you in an instant if that particular cable was only installed to support 100 Mb/s. With all 4 wire pairs connected end to end, the cable will support gigabit rates.
If all four wire pairs are connected, then you will need to determine if any of the wires are not connected properly to the wallplate or keystone or if there are wire pairs that are mixed up and installed improperly. That will take a cable tester to determine.
If when you are looking at this and determine that you have a full cable bundle at the wallplate available which includes the two RG-6 cables, Cat-5e(?) and Cat-3 and those cables are not connected, you might want to consider installing the proper keystones on all of those cables and install them into a 4 port wallplate. Essentially do all of this at the same time, which is what I did. In that case you will need a cable tester that will test all three cable types which is this particular tester. Of course its the most expensive of the group, but it will test RG-6, Cat-5e/6/7 RJ-45 (ethernet) and Cat-3 RJ-11 (telephone) cabling.
This can all be done by the home owner, but you would need to buy the:
1. RG-6 cable stripper,
2. crimping tool for the RG-6 connectors,
3. the RG-6 crimp-on connectors,
4. 110 punchdown tool for the Cat-5e and Cat-3 cabling
5. keystones for the RG-6 and Cat-5e and Cat-3 cabling
6. 4 port keystones
7. Keystone rack for the basement cabinet
8. Short Monoprice jumpers to run from the rack to the modem or switch, whichever is located in the cabinet.
Here is what some of these look like:
RJ-45 keystone for Cat-5e ethernet. Note that Cat-6 keystones are available which should be used on a Cat-6 cable.
RJ-11 keystone for Cat-3 telephone cable:
RG-6 keystone for satellite / cable tv.
Blank keystone insert:
One slot keystone wallplate
Four slot keystone wallplate
110 Punch down tool
Monoprice jumper cables. You have to select the 6 inch type to display the correct price, usually around 55 cents U.S.
Monoprice Cat-5e mini patch panel. This is all inclusive, panel and keystones
Just to note, you can install the data plugs on the ethernet cables in the cabinet downstairs. I've done it, and personal opinion, its a pain. The keystones are much easier to deal with and install. Using keystones with short jumpers is much easier. You would also have to buy the compression tool to crimp the connectors. Installing these takes practice if you have never done it before, so, you would go through a few connectors before getting is absolutely correct.
Ok, hope this helps. With everything available this wouldn't take long to to.
Thank you very much Datalink!!
Again!! your help is greatly appreciated!!
I'll follow your guide and will try to tackle one at a time..
Last time I checked wall socket, I saw all 8 wires from CAT5e cable are connected to the socket inside the wall..
These sockets were installed less than 2 years ago.. but that doesn't necessarily means they are installed properly.. 🙂
I have a feeling that wire pairs are not installed correctly.. since all 3 are behaving the same manor..
Will any of 4 testers you listed before can test if they are properly installed for gigabit rate??
Yes, any of the four will do. The pro model looks like it will provide the most information on the state of the cables in terms of which cable wire is mixed with which. I have the very basic tester and it does the job.
There are two standards that can be used for the cabling, 568A and 568B. Those two are very close and all they do is indicate which colour coded wire goes to which connector position. The same standard has to be used at both ends of the cable. 568A is typically used from what I've seen.
If you have keystones installed, have a look at the first image on the following page. It shows the A and B colour codes on the keystone that the individual colour coded cable wires should match up with, ie: keystone solid colour to same wire solid colour, keystone solid colour with white stripe to same wire solid colour with white stripe. So, if you do have keystones in the wallplate, check the keystone slot colour against the colour of the cable that actually sits in the various slots. They should match, and they should match at both ends of the cable. If there is a bad mismatch at one end or the other, then the two connected device ports will negotiate down to a speed they can both agree on, using the correctly wired connector pins.
In this particular example, the 110 punch down tool doesn't have a cutting blade on it, so the presenter had to go back after every wire was punched down and trim off the excess external wire length. There are 110 punch down tools with a cutting edge on it which will punch the cable down into the receptacle and cut the external wire at the same time. When the wire is pushed down you will hear a "snap" as the tool hits the bottom of the receptacle and cuts off the external wire.
Here's a monoprice Cat-5e keystone with the colour code shown on the side of the keystone:
Note: If all of the wire to keystone colours match up and you only have 100 Mb/s capability through the keystone, that implies that the installer didn't punch down the wires far enough. You might be lucky in that all it might take is to punch down the wires once again and make sure that each wire has hit the bottom of the keystone receptacle. If you're faced with the possibility of replacing all of the keystones, I'd try that first to see if it works. Plan B would be to replace the keystones.
Have a look at my last note in the above post.
Here is a link to the keystone pinouts that includes the pin numbers.
Those keystone pin numbers should match the indicated pin numbers on the ethernet tester, so, all you have to do then is determine which pin #'s are not testing correctly on the tester and then examine the keystones at both ends to determine what the problem is with the same specific pin #'s / colour assignments. Here are the 568A tester pin # to keystone pin & colour assignments.
Pin# Keystone Colour
1 White with Green stripe
3 White with Orange stripe
5 White with Blue stripe
7 White with Brown stripe