Bridge Losing Connection

Hi,

I currently have a Primary Arduino Nano + ESP8266-01 as a shield which is connected to the main dashboard via a local blynk server, in addition I have a number of additional devices, ranging from standalone ESP8266 boards and Arduinos, however I find that after a while they lose the bridge connection completely and need to be rebooted, clearly not convenient where they are deployed in hard to reach places.

I have tested that they are still active as I am able to connect / view their information from their own dashboard in the blynk app but no longer respond to any messages sent from either the main device or eachother.

Has anyone else using bridge seen similar issues?

Unable to retain a stable connection via bridge, considering using MQTT for the inter-device communications and only using Blynk for the primary interface / device.