I think that just setting the wireless adapter to *not* get the IP address
via DHCP and setting a static IP that you want is probably the right way to
fix the problem permanently.  You're going to get weird things going on if,
every time you start up, you change the IP address of the device.  If you
look through the registry under HKEY_LOCAL_MACHINE/Comm, you'll find a key
of the form <AdapterName><Number> where the AdapterName is the name
associated with the wireless network adapter.  Under that key, you'll find a
subkey, Parms, and under that, TcpIp.  In the TcpIp key branch, you'll find
things like EnableDHCP, a value that you can set to 0 to turn off DHCP for
getting addresses, and IpAddress, SubnetMask, and DefaultGateway, which are
multi-string values which you can set to the static IP, subnet, and gateway
that you want the adapter to use for itself.

Paul T.

For some reason, after reading the online docs I thought it was a
read-only property - but looking again at the docs it clearly shots both
get and set.  Similarly, I thought DhcpEnabled was read only - although
probably as I read the description as "Indicator of whether DHCP (for IP
address assignment from a server), is enabled for the adapter."

I should read the docs more closely.

Now the problem.

I tried this and it generates an exception.  Specifically, I tried:

textBoxLog.Text += String.Format("IP: {0}\r\n",
wirelessNetworkAdaptor.CurrentIpAddress);

string currentIPAddress = wirelessNetworkAdaptor.CurrentIpAddress;

wirelessNetworkAdaptor.DhcpEnabled = false;
wirelessNetworkAdaptor.CurrentIpAddress = currentIPAddress;

textBoxLog.Text += String.Format("IP: {0}\r\n",
wirelessNetworkAdaptor.CurrentIpAddress);

And I get "InvalidCastException at OpenNETCF.Net.Adapter.set_DhcpEnabled()"

If I comment out the .DhcpEnabled = false line, I then get:

"InvalidCastException at OpenNETCF.Net.Adapter.set_CurrentIpAddress()"

I originally tried setting the IP manually via a hard coded string, so
tried getting the IP address and then setting it to the same IP address
to ensure the format was the same, but it made no difference.

I see that other people, using both 1.4 and 2.1 have experienced this
too:
http://www.opennetcf.org/forums/post.asp?method=TopicQuote&TOPIC_ID=8683&FORUM_ID=17

Any advice?

Thanks

David