When running mtg, I see numerous warning messages in the logs indicating failures to update IP-blocklists and Telegram public configurations. The error reported is Get "URL": EOF.
Crucially, I can download these exact URLs manually from the same host using curl, wget and fetch without any issues.

Log Output:

{"level":"warn","filename":"https://iplists.firehol.org/files/blocklist_de_apache.ipset","logger":"blocklist.ipblockist.firehol","error":"cannot get url https://iplists.firehol.org/files/blocklist_de_apache.ipset: Get \"https://iplists.firehol.org/files/blocklist_de_apache.ipset\": EOF","timestamp":1771983825836,"message":"update has failed"}
{"level":"warn","logger":"proxy.telegram-updaters.public-config","error":"cannot fetch url https://core.telegram.org/getProxyConfigV6: Get \"https://core.telegram.org/getProxyConfigV6\": EOF","timestamp":1771983826516,"message":"cannot update: %w"}

Note: many more similar errors for firehol.org and core.telegram.org occur.

Manual Verification

I have verified that the URLs are accessible from the command line:

• curl -O https://iplists.firehol.org/files/blocklist_de_apache.ipset -> 200 OK
• wget https://core.telegram.org/getProxyConfigV6 -> Success

Additional Observations & Inconsistencies

IPv6 config fetch despite only-ipv4

• I have prefer-ip = "only-ipv4" set in my configuration. Despite this, mtg still attempts to fetch the IPv6 configuration from Telegram:
  https://core.telegram.org/getProxyConfigV6
• It seems unexpected for the application to try and update IPv6 configs when it's explicitly restricted to IPv4.

allowlist.ipblocklist.firehol activity

• The logs show activity from allowlist.ipblocklist.firehol (including an initial "info" message about a successful update), even though I haven't configured any Firehol-related allowlists:

{"level":"info","logger":"allowlist.ipblocklist.firehol","timestamp":1771983825666,"message":"ip list was updated"}

• Is this enabled by default, and if so, can it be disabled via config?

Environment:

• mtg version: 2.1.11
• OS: FreeBSD 14.3