Hello, sorry to say but v3.4 still seems to have the Monero pool disconnect issue, been testing it against my pool (cryptonotepool.org.uk) so I see from both ends 
Running cpuminer-multi and GPUminer 3.4 on same Win8x64 PC, with 270X
The stratum stops responding for about 10 secs whilst it waits for the daemon to backup its blockchain. Claymore miner doesnt report disconnect at this point, but stops hashing shares, 30 minutes later it says "no new job received for 20min", despite having received jobs for last 30min and not doing anything with them I then restarted the pool which caused a proper stratum disconnect, which Claymore registered, reconnected and then waited 30min before reconnecting and receiving new jobs, but not hashing any shares. Throughout that period cpuminer-multi only complained when the pool was restarted and it had to reconnect.
Looks to me like the problem is caused by it being unable to submit a share, but I'm not sure, since there is a logfile here are relevant excerpts, please let me know if you need more details.
Thanks!
Hashing away happily for over 8hrs until this last round, which is when daemon freezes but the pool stratum is still running
02:14:46:425 b10 Time gpu (0): 2802113
02:14:46:435 b10 Round
02:14:46:542 b10 t1: 95598
02:15:25:771 1958 got 253 bytes
02:15:25:774 1958 buf: {"jsonrpc":"2.0","method":"job","params":{"blob":"010094c5a89d0521cb17e4e0ba112c6642c1f473f12d3341c37cc8233e728fbc1ccd051e4cd9e50 0000000d60bc56f561459813cf1eabb4bf8752ca4a4eec13d74549573a67c93440a761e01","job_id":"985668597230687","target":"26310800"}}
02:15:25:777 1958 parse packet: 253
02:15:25:780 1958 new buf size: 0
02:15:25:784 1958 DevFee: 06/25/14-02:15:25 - New job received from cryptonotepool.org.uk:7777
02:15:26:126 18e4 got 253 bytes
02:15:26:129 18e4 buf: {"jsonrpc":"2.0","method":"job","params":{"blob":"010094c5a89d0521cb17e4e0ba112c6642c1f473f12d3341c37cc8233e728fbc1ccd051e4cd9e50 0000000c7f8c9c5c834dc86a5fe0071fc6811fe919b6f03ebb2392fb995f877017b027b01","job_id":"966067351540550","target":"33ec0a00"}}
02:15:26:133 18e4 parse packet: 253
02:15:26:136 18e4 new buf size: 0
02:15:26:139 18e4 df has same pool, skip
02:15:26:143 18e4 06/25/14-02:15:26 - New job received from cryptonotepool.org.uk:7777
02:15:26:146 18e4 Speed: 226 h/s, TotalHashes: 2691K, DevHashes: 133K Mining time:
02:15:26:150 18e4 03:18
02:15:30:849 1958 got 253 bytes
02:15:30:852 1958 buf: {"jsonrpc":"2.0","method":"job","params":{"blob":"010099c5a89d05296c5ab1430803bfab458b509b76e68f6cb7492857a997a0942b1a5466bd26d50 000000011416ef1a2688b77172d313e433bdc520dbb726156e274114b3596948197613b01","job_id":"972674444760195","target":"26310800"}}
This repeats until pool is restarted, then everything stops for 20min before getting going again
02:48:55:758 18e4 df has same pool, skip
03:07:35:690 1958 No new jobs were received for 20 mins - something wrong with this pool, disconnect.
03:07:36:698 1958 Stratum - connecting to 'cryptonotepool.org.uk' <80.71.13.55> port 7777
03:07:36:715 1958 Stratum - Connected
But now it isnt doing any work
03:20:35:784 18e4 parse packet: 253
03:20:35:786 18e4 new buf size: 0
03:20:35:788 18e4 df has same pool, skip
03:20:35:791 18e4 06/25/14-03:20:35 - New job received from cryptonotepool.org.uk:7777
03:20:35:794 18e4 Speed: 170 h/s, TotalHashes: 2691K, DevHashes: 133K Mining time:
03:20:35:797 18e4 04:23
03:20:36:391 1958 got 253 bytes
03:20:36:394 1958 buf: {"jsonrpc":"2.0","method":"job","params":{"blob":"0100dae3a89d0501cf7e5bb637c34471ea05373fbbd1f35cf4d6399a1a7020bd5b537526436af80 0000000ad58fff8b7e82e5667b80a2532066383e9e147fa2756cad58c41128bbd05ebc402","job_id":"318763095210306","target":"26310800"}}
03:20:36:397 1958 parse packet: 253
Running cpuminer-multi and GPUminer 3.4 on same Win8x64 PC, with 270X
The stratum stops responding for about 10 secs whilst it waits for the daemon to backup its blockchain. Claymore miner doesnt report disconnect at this point, but stops hashing shares, 30 minutes later it says "no new job received for 20min", despite having received jobs for last 30min and not doing anything with them
I then restarted the pool which caused a proper stratum disconnect, which Claymore registered, reconnected and then waited 30min before reconnecting and receiving new jobs, but not hashing any shares. Throughout that period cpuminer-multi only complained when the pool was restarted and it had to reconnect.Looks to me like the problem is caused by it being unable to submit a share, but I'm not sure, since there is a logfile here are relevant excerpts, please let me know if you need more details.
Thanks!
Hashing away happily for over 8hrs until this last round, which is when daemon freezes but the pool stratum is still running
02:14:46:425 b10 Time gpu (0): 2802113
02:14:46:435 b10 Round
02:14:46:542 b10 t1: 95598
02:15:25:771 1958 got 253 bytes
02:15:25:774 1958 buf: {"jsonrpc":"2.0","method":"job","params":{"blob":"010094c5a89d0521cb17e4e0ba112c6642c1f473f12d3341c37cc8233e728fbc1ccd051e4cd9e50 0000000d60bc56f561459813cf1eabb4bf8752ca4a4eec13d74549573a67c93440a761e01","job_id":"985668597230687","target":"26310800"}}
02:15:25:777 1958 parse packet: 253
02:15:25:780 1958 new buf size: 0
02:15:25:784 1958 DevFee: 06/25/14-02:15:25 - New job received from cryptonotepool.org.uk:7777
02:15:26:126 18e4 got 253 bytes
02:15:26:129 18e4 buf: {"jsonrpc":"2.0","method":"job","params":{"blob":"010094c5a89d0521cb17e4e0ba112c6642c1f473f12d3341c37cc8233e728fbc1ccd051e4cd9e50 0000000c7f8c9c5c834dc86a5fe0071fc6811fe919b6f03ebb2392fb995f877017b027b01","job_id":"966067351540550","target":"33ec0a00"}}
02:15:26:133 18e4 parse packet: 253
02:15:26:136 18e4 new buf size: 0
02:15:26:139 18e4 df has same pool, skip
02:15:26:143 18e4 06/25/14-02:15:26 - New job received from cryptonotepool.org.uk:7777
02:15:26:146 18e4 Speed: 226 h/s, TotalHashes: 2691K, DevHashes: 133K Mining time:
02:15:26:150 18e4 03:18
02:15:30:849 1958 got 253 bytes
02:15:30:852 1958 buf: {"jsonrpc":"2.0","method":"job","params":{"blob":"010099c5a89d05296c5ab1430803bfab458b509b76e68f6cb7492857a997a0942b1a5466bd26d50 000000011416ef1a2688b77172d313e433bdc520dbb726156e274114b3596948197613b01","job_id":"972674444760195","target":"26310800"}}
This repeats until pool is restarted, then everything stops for 20min before getting going again
02:48:55:758 18e4 df has same pool, skip
03:07:35:690 1958 No new jobs were received for 20 mins - something wrong with this pool, disconnect.
03:07:36:698 1958 Stratum - connecting to 'cryptonotepool.org.uk' <80.71.13.55> port 7777
03:07:36:715 1958 Stratum - Connected
But now it isnt doing any work
03:20:35:784 18e4 parse packet: 253
03:20:35:786 18e4 new buf size: 0
03:20:35:788 18e4 df has same pool, skip
03:20:35:791 18e4 06/25/14-03:20:35 - New job received from cryptonotepool.org.uk:7777
03:20:35:794 18e4 Speed: 170 h/s, TotalHashes: 2691K, DevHashes: 133K Mining time:
03:20:35:797 18e4 04:23
03:20:36:391 1958 got 253 bytes
03:20:36:394 1958 buf: {"jsonrpc":"2.0","method":"job","params":{"blob":"0100dae3a89d0501cf7e5bb637c34471ea05373fbbd1f35cf4d6399a1a7020bd5b537526436af80 0000000ad58fff8b7e82e5667b80a2532066383e9e147fa2756cad58c41128bbd05ebc402","job_id":"318763095210306","target":"26310800"}}
03:20:36:397 1958 parse packet: 253