DNSE-340 — Reading reply from server failed
Proxy tried to read a reply from a selected server, but the block is too large to fit into the internal buffer. The size of the block can be found in preceding NETL-391 message. If the value is reasonable, you can increase the SERVER-CONN.RECV-BUFSIZE value to see the content, otherwise take an action according to your security policy.
Proxy will try another server (if allowed).