The iPad hasn’t been going through a good time lately. The latest trouble brewing is the news that some colleges have banned iPad from its network owing to connectivity and networking issues.
Many iPad owners have experienced WiFi connectivity issues with their devices. There seems to be a wide variety of issues, ranging from bad WiFi reception to regular drops on the WiFi connection. It is doubted that a bug in the connectivity procedure to some routers.
Princeton and Cornell has put up a detailed statement for Apple to diagnose what the issue is and how to rectify the same. The statement point that there sees to be glitches with the way iPad connects and handles DHCP leases.
DHCP, which stands for Dynamic Host Configuration Protocol, is responsible for assigning IP addresses to computers on a local network. Normally, these IP addresses are renewed at regular intervals. If the device doesn’t request a renewal of the address, the DHCP server can hand this address out to another device.
It was found that the iPads renew their lease of a given IP address once but then allow the lease to expire. However, even after the lease-expire, these devices still try to use the same address without asking for a new lease. As the router doesn’t remember the device anymore and has probably assigned the IP address to another device already, the connection is bound to fail.
If Apple find the same as the root cause of the problem iPad users will be straight in for a techniciously delightful software update.