Since changing the network configuration, try clearing the config by doing a reset options (just to rule out any other issues) and try again by setting your API key, weather adjustment method (Zimmerman) and location.
The changes in 2.1.4 are network related (closing sockets instead of leaving them open, properly send multiple packets for large packets exceeding MTU, etc). Overall this a huge stability improvement and I’m curious if it has any effect on your situation. Regardless, try the above and let us know. Otherwise, 2.1.4 should be released, maybe today.