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connecting to WIFI with certain device causes all others to lose connection


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Ziggy1's Avatar
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24-Dec-2011, 12:58 AM #1
connecting to WIFI with certain device causes all others to lose connection
Hi,

I have a perplexing situation. I have a home network with a wired router (Di604), feeding a Wireless router ( DIR615) set up as switch). I am just describing the setup, but please don't focus on that because it has been the same for about 5 years.

let me explain further....

the issue I have is when adding a second Blackberry to my WIFI, within half an hour ( varies) devices on the network begin to lose connection to the Internet... others still work, but later they will lose it also. This can span over several hours and eventually everyone is affected.... this affects both wired and wireless


My network has


Wired
2 devices

Wireless

6 devices

would there be a limit to the number of devices my ISP might allow? That is the only thing I can think of? I could have sworn I have added others.


Sometimes they come back on their own, but rebooting rarely helps. I ussually have to go down and unplug the routers and modem and then put them back on one by one, do a release/renew (don't always have to). And everything settles down.

The only thing I liken this to is a Broadcast storm, but I don't know enough about the cause?
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etaf   (Wayne) etaf is offline
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24-Dec-2011, 08:13 AM #2
Quote:
would there be a limit to the number of devices my ISP might allow? That is the only thing I can think of? I could have sworn I have added others.
there maybe or a limit on the DHCP in the router settings - but it would be a solid case of the Nth device will not connect - not a slow issue

make sure all devices are set to DHCP and also check all the ipconfig /all and see if any have the same when it disconnects

5years old , the router may have a fault - they dont last forever

you may want to do a factory reset on the router and then reconfigure all the settings


Quote:
the issue I have is when adding a second Blackberry to my WIFI, within half an hour ( varies) devices on the network begin to lose connection to the Internet.
is this just a coincidence ?

post back an ipconfig /all from one of the devices and also three ping tests and then repeat all test when disconnects

------------------------------------------------------------------------
ipconfig /all
If you cannot access the internet with this PC, then you will need to paste the results into something like notepad and then copy onto a machine that can access the internet and post results here

We would like to see the results from ipconfig /all post back the results in a reply here

Hold the Windows key and press R, then type CMD then press Enter to open a command prompt box (A new dialogue box - black with white font, will appear on screen ):

In the command prompt window that opens, type the following command:

Note that there is a space before the /ALL, but there is NOT a space after the / in the following command.

ipconfig /all > network.txt & network.txt

It will export the results to notepad and then automatically open notepad.

Now all you need to do is copy and paste those results to a reply here
to do that:
From the notepad menu - choose Edit - Select all
all the text will be highlighted
Next
From the notepad menu - choose Edit - Copy
Now go back to the forum - reply and then right click in the reply box and paste
------------------------------------------------------------------------

------------------------------------------------------------------------
Ping Tests
If you cannot access the internet with this PC, then you will need to paste the results into something like notepad and then copy onto a machine that can access the internet and post results here
Save the file to a USB flash drive or other removable media. Plug it into the working computer with internet access and copy the file and paste here.

Start> Run {search bar in Vista/W7}> CMD to open a DOS window and type:

Type the following command
Ping {plus the number thats shown against the default gateway shown in above ipconfig /all}
Post back the results
rightclick in the box
select all
enter
control key + C key - to copy
then reply here and
control key + V to paste

Type the following command
Ping google.com
Post back the results
rightclick in the box
select all
enter
control key + C key - to copy
then reply here and
control key + V to paste

Type the following command
Ping 209.183.226.152
post back results
rightclick in the box
select all
enter
control key + C key - to copy
then reply here and
control key + V to paste
Quote:
For your information only
these tests will check various stages of the connection, the first ping test, ping default gateway checks to see if you still have a connection to the router the next two
Ping google.com & Ping 209.183.226.152 tests the connection to internet , one by name and one by number which checks that the dns is working

------------------------------------------------------------------------
__________________
Wayne
Please let us know what the final solution was to any problem posted
Ziggy1's Avatar
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24-Dec-2011, 02:40 PM #3
thanks for the in depth instructions, I know some of what you have posted, but lack thorough networking knowledge. it is going to take me a few days to do all this research (so I don't annoy everyone). I've since turned off the Blackberry wireless and and my network has settled back to normal.

I want to see if another device will create the same effect also. I know it is also not releated to the Blackberry itself becuase my daughter just got her old one replaced with the same model and both times this happened.

Thanks again... Merry Christmas
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etaf   (Wayne) etaf is offline
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24-Dec-2011, 02:43 PM #4
OK - have a great christmas - and some diagnosis may be useful to determine the next move
also dont hesitate to ask to simplify instructions - we can go much slowly and more detail if necessary - not expecting anyone to be an expert here at all
Ziggy1's Avatar
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25-Dec-2011, 03:56 PM #5
Quote:
Originally Posted by etaf View Post
OK - we can go much slowly and more detail if necessary
lol, oh I'm not that bad. I'll let you know when something confuses me.

btw we connected a new Ipod this morning, and nothing happened yet.
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etaf   (Wayne) etaf is offline
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25-Dec-2011, 06:28 PM #6
Quote:
btw we connected a new Ipod this morning, and nothing happened yet.
you will have to try the blackberry again and see what happens
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