Hmm, I see the same packet length and the DHCP-request is also marked as malformed by Wireshark, but I do not have connection-issues.
soo…

And this makes it strange: to get inconsistent behaviour depending on the network!

The DHCP Request is not the first packet.
1) First there is a DHCP Discover sent by the uRAD, with no IP, just the MAC.
2) Then the DHCP Server Offers an IP
3) The uRAD Requests this IP with no own IP
4) The Server ACKs this.

So, when you see different behaviour in different networks, maybe there are differences in 2) ?
Do you have both, working and not working with uRAD Device? Could you analyse that?

Vinz