I play on a server and the pump stops pumping molten liquids from TE machines after a while. I have to break and reset the pump for it to work for a bit.

I tried adding pumps, moving it down the pipe, etc. The pipe length is 6-8 long. I haven't tested on a single-player world.

I since then replaced the pipe setup with AE fluid network.

C:A&B ver 1.3

Having this problem with Tinker's Construct blocks as well. My hacky workaround was to arm a deployer with a wrench that constantly flips the pump, resetting it and causing it to work again