This is unrelated to KnC miners, it's just some things you should know about networking.
a) Find out if your local computer (I assume the only people asking questions here are using Windows systems) has configured
a
static IP address or receives the IP address via
DHCP.
Very stupid (but working for LAN, not WiFi) way for anyone who has no idea what I am talking about:
Note the IP address of your computer by running
ipconfig (Windows) or
ifconfig (rest).
You will see at least (!) 2 IP addresses, just
ignore the famous 127.0.0.1 on a lo* interface.
If you see multiple IPs, note down all.
Remove the ethernet/network cable(s) from your computer.
Start your computer again. If your computer still has the same IP address(es), you have assigned
static IPs in your system.
Probably someone else did this. If you see now an IP address starting with 169.254 your computer uses DHCP to get an IP
address. (More info about this:
http://en.wikipedia.org/wiki/Zero-configuration_networking )
More complicated but more elegant way to find out whether you have static or DHCP:
Go to the network configuration (I did not use windows for quite some time, don't know how to explain this step by step)
and check if your IP interface (cable or WiFi) uses a fixed/static entry or there is something activated called DHCP.
If your system has static IPs, there is a good chance that you
do not have a DHCP server in your setup.
That's really a problem for you now. There are solutions, but they need additional hardware or more tricks.
Please remember: Even a static (default) IP address on the KnC miner
will not help you. The KnC miner
does not have
Internet access via that IP address!b) Some (mainly cable) WiFi routers that also have ethernet ports
do not allow access from WiFi to ethernet ports.
Try to attach your computer via an ethernet cable and repeat the stepts to find the IP address of the KnC box.
When you have such a setup and also have access to the cable router (which you normally do not have, blame the cable
operators), you might look for some security settings that deny/disable WiFi to ethernet access.
c) Some DHCP installations only allow a limited (often as low as 3 or 5) number of clients (computers, network devices).
When you have multiple (wireless connections from phones, iPad etc!) devices already in your setup, try to turn off
one of them, wait some time (this can be 10 minutes) and start the KnC miner again. Repeat the steps to find the KnC IP.
d) Some routers/switches have a security feature called
port privacy. This means, that every device on your LAN can
only talk to the Internet but not to any other device on your local LAN. It's unlikely that a home network setup has
this feature enabled, but it can be. This feature can also be enabled on WiFi networks.
Again: Without access (and not just read only) to the router/switches, you can not get the KnC working without additional
hardware or lots of tricks.
e) Your local computer might have a network firewall configuration that prevents access to the KnC. It's pretty unlikely that someone
configured such a firewall rule, but it is possible.
If you are still reading my post: Congratulations!