L3+ Solo - Setting Static Difficulty Disconnects

All,

I'm having issues with L3+ miners difficulty argument. When I set the static d= in pw field, miners disconnect & rollover to backup server.
Here are the current pw arguments:

n=ASIC1 p=0.10 w=800 m=solo c=Litecoin d=262144

Without the diff argument, the miners connect for a while (between 1hr-5hrs) then rollover to my default backup server. Any ideas as to what I am doing incorrectly?

Thanks in advance for the help!

I've been doing a bit more testing..decided to try using the proxy URL. When using stratum+tcp://proxy.prohashing.com:443, setting the static difficulty works properly.


EDIT: After about a half hour of mining the miner disconnects with server dead and rolls over to backup server still.