UDP not working with static IP-address @ WiFi-shield

Community General Discussions
1

I use a WiFi-shield (firmware 1.1.0) in conjunction with an Uno R3 and IDE 1.0.5 r2.

If I use DHCP for assign an IP-address to the shield the Arduino UDP NTP-example works fine.

If I set a static IP-address (Wifi.config) I stop receiving UDP packets from the NTP-server.

Any ideas?

2

You might want to post this on the Arduino forum.

There will be more people that may know there.

3

Does the WiFi router know
Does the WiFi router know the static IP address?

Is the address within the range of static addresses controlled by the router?

4

Yes …

the router knows the address. I linked a static address of the router’s range to the mac address of the shield. The shield really has the address and is able to act as http client or server, but does not receive UDP-packets.


5

Arduino formum

I’ll will post the topic on the Arduino forum (check for solution first).

Till now I am only active @ LMR, good suggestion, thanks.

6

Sending can work when
Sending can work when receiving can fail because there is no route to the receiving system.

7

Yes, the router knows the static IP address . But I don,t know the answer to the next question . Will look forward for the answer to it myself as well.