We have been using an artiq system on conda for half a year, with gateware version is 7.8 and the software version 8.9, and it has been working fine. But since last week the dashboard would report "lost connection to moninj" every few minutes to few hours. Once it happens all the Urukul outputs would stop, trying to ping the device's IP address would fail, but after a few minutes the dashboard can automatically reconnect to the moninj.
This is what the log looks like when it happens:
How can I fix this problem?