Hi @mikesnare, thanks for interest for ruby SDK!
Could you tell which version of libcouchbase are you using? The “dnssrv=” setting checked during lcb_create call, so it might be too late to apply it using lcb_cntl. To disable SRV requests completely, you have to use dnssrv=off in your connection string. which stored in lcb_create_st argument of lcb_create function.