I can nor figure out why my MLAT feed stopped working. I reimaged card and it has been working for a few days. Added FR24 and Flightaware and was still working. In fact, I can see MLAT is still working in Flightaware (still green). MLAT Also working on AirNav.
It was not until I installed Planefiner that MLAT went down in ADSBX. I am getting a red bubble stating no feed, not showing on MLAT map page anymore either.
Snippet of ADSBX llog from MLAT: Connected to multilateration server at feed2.adsbexchange.com:64590, handshaking
Mar 30 09:21:19 adsbexchange adsbexchange-mlat[837]: Lost connection to feed2.adsbexchange.com:64590
Mar 30 09:21:19 adsbexchange adsbexchange-mlat[837]: Reconnecting in 2.3 seconds
Mar 30 09:21:21 adsbexchange adsbexchange-mlat[837]: Connected to multilateration server at feed1.adsbexchange.com:31090, handshaking
Mar 30 09:21:26 adsbexchange adsbexchange-mlat[837]: Lost connection to feed1.adsbexchange.com:31090
Mar 30 09:21:27 adsbexchange adsbexchange-mlat[837]: Reconnecting in 6.1 seconds
Mar 30 09:21:33 adsbexchange adsbexchange-mlat[837]: Connected to multilateration server at feed2.adsbexchange.com:64590, handshaking
Mar 30 09:21:38 adsbexchange adsbexchange-mlat[837]: Lost connection to feed2.adsbexchange.com:64590
Mar 30 09:21:38 adsbexchange adsbexchange-mlat[837]: Reconnecting in 5.9 seconds
Mar 30 09:21:44 adsbexchange adsbexchange-mlat[837]: Connected to multilateration server at feed1.adsbexchange.com:31090, handshaking
Mar 30 09:21:49 adsbexchange adsbexchange-mlat[837]: Lost connection to feed1.adsbexchange.com:31090
Mar 30 09:21:49 adsbexchange adsbexchange-mlat[837]: Reconnecting in 5.8 seconds
I can confirm that I am having the same issue as well.
It appears to have fixed itself overnight, working now. It was not on my end, I even flashed a new SD card last night and was still getting the red MLAT, so put original back into pi.
Update: went out again
Just signed on as a feeder with own equipment. Followed the instructions to update the files in my Rasberry. My receiver was linked with no issues. When I checked the feeder status, it says my ADS-B is connected and Feeder is OK. However, MLAT is Not Found and No Feed in Red. I am also feeding into FlightRadar24. Cannot figure out what the problem is. Has anyone else had a similar problem?