For the error code, I shall refer you to the UHD source code:
And thus I saw:
Apparently, you receive bad packets. A quick “git grep ‘vrt packet
offset’” led to host/lib/transport/super_recv_packet_handler.hpp in the
UHD source tree. I guess it really just checks whether your receive
buffer is large enough to contain your header; how that could happen
Maybe if you elaborate on when and how you increased which buffer size,
things could clear up.
I think follow-ups should be on [email protected], however, so
I’ll crosspost this reply there, please sign up for that list.