1 ACCEPTED SOLUTION
Accepted Solutions
Hi,
Can you go to the thread indicated below and follow my questions posted there in response to stavic's post:
Please post the responses into this thread, which you have started. You might have a different Rogers modem / router. If so, please indicate that as well. With more information regarding your modem / router and network, other forum members and myself can hopefully determine what you need to do to resolve the situation.
Hi,
Can you go to the thread indicated below and follow my questions posted there in response to stavic's post:
Please post the responses into this thread, which you have started. You might have a different Rogers modem / router. If so, please indicate that as well. With more information regarding your modem / router and network, other forum members and myself can hopefully determine what you need to do to resolve the situation.
And durring those times, the WIRED speed is still ok?
(just trying to narrow down if its an overall slowness or just on wifi)
Is this in a house or an apartment?
My FIRST thought.. it possibly interfearance.
Just to cover both bases.. can you log into the modem, and get us the signal strength table and post it here?
(do this durring the good and bad times.. just so we can compare)
Beyond that, will probably have to get you to do a few things to check your wireless settings, for interfearance, etc.
As Gdkitty indicated, if you can copy the downstream and upstream tables from the DOCSIS WAN page in the modem user interface we can check the RG-6 cable signal levels. Beyond that its time to look at the wifi issue. If you can load inSSIDer on a laptop and bring up the network display, you will see in list and graphical form, the routers that are running nearby that the laptop wifi card can detect. Looking at the graphical display will show you if there are other routers that are running on the same wifi channel as your 3825, causing interference, or if they are running on channels that are close to yours, which will result in the same issue. The link below is for the last freebie version of inSSIDer. It will monitor both 2.4 and 5 Ghz networks. It does not do 802.11ac which is becoming common, so you won’t have the complete 5 Ghz network picture, so to speak. There is a new version out, which is now a pay version. Anyone with intentions to use inSSIDer long term should spend the $20 U.S. to buy the new version. The new version does not require an 802.11ac wifi card. It will read the headers from the router broadcast and display the data as necessary.
So, have a look at that display. If you can post an image somewhere that we can have a look at, combined with the cable signal levels, we should be able to determine what is going on.
http://www.techspot.com/downloads/5936-inssider.html
http://www.inssider.com/inssider4/
Possibly?
Which modem do you have? The CGN3 or the CGN3ACR?
The CGN3 at least, does have some.. limitations.. in it, where it can only do one wireless mode, and will lower itself to the lowest of all connected.. and can lower the speeds.
Some general wireless settings itself can sometimes limit the wireless speeds (leaving it on B/G/N for example, just N will often give better performance, etc)
I was going to say exactly the same idea. Have a look at a post of mine from yesterday:
If you have a CGN3, the way to confirm that this is a problem on the 2.4 Ghz band is to turn off all of the wireless devices and reboot the modem (unplug and plug back into power supply). When the wifi lights on the front of the modem light up, you are good to go. Turn on only a single device, say the laptop for example. Run a speedtest to see what the results are. As long as everything else is turned off and not in standby mode and therefore possibly still connected, you should see the highest result you are going to get. Then, turn on another device and ensure that its connected and can access the internet. Run the speedtest on the laptop and look for any possible drop in the speedtest results. If you see a drastic reduction in data rates, that is due to the CGN3 locking down to the lowest data rate of the connected devices. Keep adding devices, one at a time, until you determine which one is causing the slow data rates.
The newer CGN3ACR should not suffer from this problem as it has been certified to operate with mixed capability devices. The CGN3 does not carry the same certification.
The other consideration is that the CGN3 wifi performance just isn't that great compared to third party routers which have external antenna. Depending on where the modem is, and where the device normally is, you may not be seeing high data rates due to the modem wifi performance and the distance from it.
I wouldn't 100% say the vivienm
I am currently running a fairly basic 2.4ghz Intel N card in my laptop.
I am able to get About 97mbps on speed tests with it.
Big difference is as well, that I am running my own N66U as an AP.
I think a good portion of it is the wifi end on the CGN3 as well.
I am currently running a fairly basic 2.4ghz Intel N card in my laptop.
I am able to get About 97mbps on speed tests with it.
Big difference is as well, that I am running my own N66U as an AP.
I think a good portion of it is the wifi end on the CGN3 as well.
@CarolS51, we're going to need more information in order for us to provide any assistance. First question is what modem do you have, CGN3 or CGN3ACR? Second question, can you navigate to Control Panel....Devices....Network Adapters. When you are there please copy the model of adapters that are listed and type or paste them into this thread. When we know the modem model and wifi card model, we should be able to come up with a reasonable approach to the problem. Fwiw, I don't think I ever saw anything more than 105 - 110 Mb/s on a 2.4 Ghz network from my CGN3, and that was at close range to the modem.
The other issue is the possibility of living in a busy wifi neighbourhood. If you install a program like inSSIDer to look at that environment, you, or we should be able to determine how tough it will be to see higher data rates. The link below is to the last freebie version of inSSIDer. It will monitor both 2.4 and 5 Ghz networks, but it does not display the newer 802.11ac networks which run in the 5 Ghz band. The network display will show both in list form and graphically, how many other routers are running nearby and from the graphical display, it is possible to determine if there are better channels to be operating on that might yield higher data rates. If your laptop is 5 Ghz capable, you should notice a significant difference in the number of 2.4 Ghz networks running versus the number of 5 Ghz networks running. That might give you some idea that the 5 Ghz band is a better place to be operating. If you load the application, take a screen shot of the network display and post it somewhere that we can have a look at it, we can tell you how easy or difficult it might be to switch channels.
http://www.techspot.com/downloads/5936-inssider.html
Here is a link to the new version which has since become a pay version. For $20 U.S., if you run networks in the 5 Ghz band, its worth buying.
Take your time, and if we say something that you don't understand, please let us know so that we can provide a better explanation. Take it slow and don't get flustered by the details... There are a good number of people here who can help 🙂
Yes, exaclty. 72.1 Mb/s with a single channel, and 150 Mb/s with two channels with the second channel running as the co-channel. The wifi card only supports one antenna, so it is a single transmit, single receive, single data stream wifi card.
If you look at this chart, you can see, for the entries where the spacial streams equals 1, that data translates to what this wifi card can do. Again, it is a single data stream device which can support one 20 Mhz wide data channel or two 20 Mhz wide data channels.
http://communityforums.rogers.com/t5/media/gallerypage/user-id/829158/image-id/1128i1B0D5B8474F8D75B
To run two channels, the wifi environment would have to be quiet enough that two channels could be used. If not, the wifi card will only, and possibly always run a single 20 Mhz wide channel.
VivienM you are correct. CarolS51, do you post pictures anywhere for other people to see? If not, I'll send a private message with an email address so that you can paste that into an email. Please check the upper right hand corner of this page where the envelope symbol is located and follow the envelope link.
Edit: @CarolS51, message sent. Please check the envelope symbol at the upper right hand corner
Looking back at your first message, your getting 35-48 Mb/s, where the maximum for your wifi card when it runs a single wifi channel at 72.2 Mb/s max. So, your not very far from the max data rate in that case. Laptops typically have 2 antennas for wifi cards and therefore the data rate is doubled, usuall with a maximum of 300 Mb/s. If you look at the graphical display, and see where your wifi channel is currenlty running, 4 channels up from that is where the channel that is used for the secondary transmit / receive channel is located. The wifi card, along with the modem or router, agree to use the first channel, and the secondary channel if it is not already occupied. If the secondary channel is occupied or noisy, it it not used, and only the first channel is used, which will limit the maximum data rate to 72 Mb/s. With both channels running you would see a maximum of 150 Mb/s.
Here is the manufacturers page for your wifi card:
http://www.realtek.com.tw/products/productsView.aspx?Langid=1&PFid=48&Level=5&Conn=4&ProdID=272
Ok, here's the inSSIDer screenshot: http://www.screencast.com/t/5EIcdhAW
If you look at the graphical portion, you can see where your channel happens to be operating at the moment, which is channel 2. Channel 7 is occupied by the Aliant011 network. That is the other router or modem that is really preventing your wifi card from using channel 6 to run a secondary channel. What that image also shows is that you in a very tough wifi environment, and are competing with a number of wifi routers / modems for channel space. Every channel is occupied, which is shown by the channels shown in red, yellow and grey. That means that everyone in your area will be running single channels for their devices, which limits the maximum data rates to the devices. So, I'm afraid that I don't have good news for you in terms of the data rates that you would like to be running via wireless.
Are you in a house, or apartment by chance? Just wondering.
-
57961 views
-
14 Likes
-
-
