CGN3 - Using both 2.4ghz and 5ghz WiFi don't work.

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I Plan to Stick Around
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CGN3 - Using both 2.4ghz and 5ghz WiFi don't work.

Now, before you ask why I use both, it's because not every device at home works with 5g, I only use 5g because my house is large Smiley Happy and I can be working at my bedroom, you know what I mean. Smiley Tongue

 

So each time when I try to connect to my 5ghz network, it fails to connect. I tried a factory reset, but still, no. Anyone knows the solution?

 

 

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nkgers | remember to leave a KUDO 😄
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Re: CGN3 - Using both 2.4ghz and 5ghz WiFi don't work.

Ok, back to basics....Turn off the wifi on your laptop and IPad.  Connect the laptop to the CGN3 via Cat 5 or 6 patch cable.  Run a Factory reset on the CGN3 either by pushing the recessed reset button at the back for more that 5 seconds or by logging in to the CGN3 and running the factory reset that way. 

 

After the Factory reset is done, make sure that the 2.4 and 5 Ghz wireless LEDs at the front of the modem are lit. 

 

Log in, still via wired connection and set your password for the CGN3 and LAN parameters that you need and save the settings as required before moving on to the next pages.  The password reset will no doubt require you log back in.  Proceed to reset your Wifi parameters, including the new network names, security settings "WPA2-AES", and passphrases for the 2.4 and 5 Ghz networks.  Turn off the WPS.  At this point I would set the 5 Ghz wifi for 802.11 n to start with.  (If that does not work when everything is all done, go back in and set it for 802.11 a/n mixed.)  Once all is done, reboot the CGN3. 

 

When the reboot is done, log back in and turn off the 2.4 Ghz network just for now.   Log out of the CGN3. 

 

Here is a note that I came accross tonight while researching this:

 

etc, etc, etc.......

 

Then open Network & Sharing Center and click on "Connect to a network".
Then select Manually connect to wifi...
Enter the SSID and password (case sensitive), and exact security types.

I've found Windows 7 & 8 wifi connecting to be buggy if just select the SSID in the list at right of screen because Windows will at first try to connect using Wi-Fi Protected Setup if the router supports it. I always do the connection manually.

 

 

 

So, at this point you could disconnect the CAT 5/6 cable from the CGN3, turn on the wireless on the laptop and manually connect to the CGN3.  I've never had a problem by choosing the network from the list, but as indicated above, this might cause issues when trying to connect.  If you choose from the list, the new network name should pop up to the top due to the power output of the CGN3 compared to other routers in the neighborhood.

 

Ok, give that a go.

 

When you were trying to change the network names before, were you connected via wireless?  Just curious.

 

In order to change the network SSIDs, the networks have to be up and running, but with nothing connected at that point via wireless, and your laptop connected via wired connection, there should be nothing to prevent you from changing the SSIDs at will, to whatever name you want to use.

 

 



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Re: CGN3 - Using both 2.4ghz and 5ghz WiFi don't work.

I suspect these days that users probably have more 2.4 Ghz devices than 5 Ghz devices, so, running both networks is fairly common.  Potentially stupid question, but are both the 2.4 and 5 Ghz network LEDs lit on the front of the CGN3? Just checking, because I've seen factory resets completed without the wireless networks starting as they should.  If they are not running after the reset, do as many factory resets as necessary to get them running. 

 

I wouldn't call the settings tab for the 2.4 and 5 Ghz networks intuitive.  Under Wireless.....Basic Settings...each network has its own tab that you have to use in order to turn the network on, and to give each network an SSID (network name).  Once they are turned on and named, you then have to go to Wireless.....Wps & Security....and then select each network individually on the right hand side (blue links) to give each network the passphrase.  The only reason that I can see for not connecting with the 5 Ghz network is either its not running, or possibly the passphrase has not been set and its still using the Rogers default.  The same passphrase can probably be used for both, although that isn't a good practice for network security, but, if you set the 2.4 Ghz passphrase, from what I remember, it doesn't automatically set the 5 Ghz passphrase to the same one.  Each one has to be set individually.

 

Here is a link to the user manual for the CGN3 in case you need it:

 

https://s3.amazonaws.com/modem.manuals/CGN3_UG_v1.1_2013-08-16.pdf

 

Page 21 contains the LED states for the wireless networks and page 75 contains the WPS & Security page showing the two network setting link on the right hand side in blue.  

 

If you don't already have a network monitoring application, here is a link to inSSIDer, which you can use to check on the wireless networks in and around your home: 

 

http://www.techspot.com/downloads/5936-inssider.html

 

 



I Plan to Stick Around
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Re: CGN3 - Using both 2.4ghz and 5ghz WiFi don't work.

Also, this usually goes without saying, but I've seen it happen:

Make sure you don't name the SSID the same for your two radios. This can cause unwanted confusion and frequent disconnects!

 

L.

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Re: CGN3 - Using both 2.4ghz and 5ghz WiFi don't work.

Yes, that is a very good point.  Give them separate names and passphrases.  Using the same name allows confusion as you can't tell from looking at the windows network selection popup which network is 2.4 Ghz and which is 5 Ghz. 



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Re: CGN3 - Using both 2.4ghz and 5ghz WiFi don't work.

Thanks everyoone, but hate to say it, it couden't have serpperate passwords 😕

nkgers | remember to leave a KUDO 😄
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Re: CGN3 - Using both 2.4ghz and 5ghz WiFi don't work.

Am back, tried *SSID* to *SSID*-5G. Nope. I need name ideas Smiley Very Happy

nkgers | remember to leave a KUDO 😄
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Re: CGN3 - Using both 2.4ghz and 5ghz WiFi don't work.

I highly agree with what LYuan is saying.

While many devices are often smart enough (or are suposed to be), to determin which is the best one to use.. thats not always the case.

Best rule of thumb.. is to name them differently.



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Re: CGN3 - Using both 2.4ghz and 5ghz WiFi don't work.

??  Is that for the CGN3 or for the device.  I have different SSIDs and different passphrases on my CGN3.  Use a random name or phrase for the SSID, something like "Taj Mahal" for one and "My Castle" for the other.  Use something that can't be used to identify you personally, or your house.  You could use completely random characters, which is what I do.  The SSID is 32 characters in length, so you can fill that space completely with random characters.



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Re: CGN3 - Using both 2.4ghz and 5ghz WiFi don't work.

What is the exact error your getting?

Just 'can not connect'

or that the password is wrong, etc.. as an incorrect password, will usually give a different response and just not connect at all (vs a failed connect).

 

Only other thing i can think... what MODES is the 5g set to?



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Re: CGN3 - Using both 2.4ghz and 5ghz WiFi don't work.

It's just a cannot connect.

 

Let me login to  192.168.0.1..... okay the mode is 802.11a/n mixed

nkgers | remember to leave a KUDO 😄