Thanks Steve. I did find reference to that being the most recent
version and downloaded hl2b5up_main.rbf from Github. But when I try to
update to that version using SparkSDR it shows "Erasing" for about a
minute, then "Programming Failed". I've repeated the attempt several
times per the wiki but the same failure results.
I can still run the HL2: the connection shows it's using protocol 1
v6.0 and SparkSDR Radio Settings menu shows firmware version 60, patch
0, board ID 0, and 3 receivers. The HL2 board is marked "build 6".
The problem does seem to be related to network access as it won't make
it more than a day without locking up until power cycled. The last time
it locked up while I was supposedly watching, but it locked up while
transmitting and got really hot before I noticed, so I need to update
the gateware before using it again.
Can you suggest how I should proceed? Maybe I need to update to an
older version of gateware first?