If you changed nothing in your settings, changed nothing in your computer, the problem usually lies in the network.
- It can be on your local network (never use wireless always hard wired), someone uploading on your network, dog chewed up the cable, bad connector, crappy router/hub/switch, etc.
- The ingest server you send data to sucks
- The public Internet from you to the ingest server sucks
The latter two you can't do anything about. I confirmed this just now, by looking in your log file:
22:49:30.609: Output 'adv_stream': Number of dropped frames due to insufficient bandwidth/connection stalls: 1088 (28.0%)
Again, if all of this was working before and is happening now, its a network problem. You will just have to wait it out.