Device not getting ip adddress

Some particular devices ( android os ) is not getting ip address from dhcp server. But windows clients are getting the ip address.
How can i troubleshoot this issue , anything need to be done on the access ports

Hello,
So I can see you have a DHCP server at 192.168.8.11, is that the DHCP Server we are using?
For that please add on both devices:
interface Vlan58
standby 58 HSRP1
ip helper-address 192.168.8.11 redundancy HSRP1
Now if the switch is the DHCP server, make sure you split the DHCP pools on each box as they do not share the DHCP binding table, you do not want to be providing the same IP addresses on both routers,
Does it make sense?
Please let us know whether the switch is the one that should give it or that other server?
Regards

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Hello,
I am confused...3 weeks ago you had this solved?
http://supportforums.blackberry.com/t5/BlackBerry-Link/Device-not-getting-detected-on-Blackberry-Lin...
Please clarify.
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Cheers!
Occam's Razor nearly always applies when troubleshooting technology issues!
If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.
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i'm getting the same problem too.
my ipod is nearly about 1 year old.
i use my ipod nano 2GB for music and as a flashdrive to store my uni work.
this morning accessing my files in the ipod on the computer was fine.
then later in the afternoon when i connected it into a computer i keep getting the msg 'usb device not recognised'. also itunes dont recognise my ipod either anymore.
i use Windows XP at home and uni.
i've tried my ipod on at least three different computers at uni and just tried at home.
same msg came up 'unknown device' from windows.
i've read the other posts in the forum and it mentioned about 5 R's and resetting it.
BUT the main problem is i DONT have any back up of my uni work and files and they are really really important so i CANT reset the ipod otherwise i will lose all the important things...my assignments, projects, photos...I was meant to make a back up b4 i start uni next monday but i guess now is TOO LATE.
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I am in Utter Despair and Desperation at the moment.
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i would be sooooo grateful for your kind help and time.
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a student who is on the verge of a breakdown due to this problem.
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Device not getting ip adddress

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