Cpuminer problem: empty reply from server When I run the following command:

minerd.exe -o http://eu-stratum.btcguild.com:3333 -u username_1 -p password -a sha256d -R 2


I get this:

2 miner threads started, using 'sha256d' algorithm.
Binding thread 0 to cpu 0
Binding thread 1 to cpu 1
HTTP request failed: Empty reply from server
json_rpc_call failed, retry after 2 seconds


How can I solve this problem?
The miner you are using does not support the stratum protocol. Instead you must use a pool that uses the old and now obsolete getwork protocol

If I see it correctly BTCGuild still offers the getwork access with the following URL:

minerd.exe -o http://btcguild.com:8332 -u username_1 -p password -a sha256d -R 2