Transmission error: "Could not connect to the server."

@problema I think I found a solution. If possible, let me know if this works for you also:

  1. Modify /etc/apache2/conf-available/snac2.conf to have the following content:
# apache2 configuration example for snac2
# requires modules: proxy, proxy_http

# Main web access point
<Location /social>
    ProxyPreserveHost On
    ProxyPass http://127.0.0.1:8001/social
</Location>

# WebFinger
<Location /.well-known/webfinger>
    ProxyPreserveHost On
    ProxyPass http://127.0.0.1:8001/.well-known/webfinger
</Location>

# NodeInfo (optional)
<Location /.well-known/nodeinfo>
    ProxyPreserveHost On
    ProxyPass http://127.0.0.1:8001/.well-known/nodeinfo
</Location>

# Mastodon API (entry points)
<Location /api/v1/>
    ProxyPreserveHost On
    ProxyPass http://127.0.0.1:8001/api/v1/
</Location>

<Location /api/v2/>
    ProxyPreserveHost On
    ProxyPass http://127.0.0.1:8001/api/v2/
</Location>

# Mastodon API (OAuth support)
<Location /oauth>
    ProxyPreserveHost On
    ProxyPass http://127.0.0.1:8001/oauth
</Location>

# host-meta (optional, needed for some Mastodon API clients)
<Location /.well-known/host-meta>
    ProxyPreserveHost On
    ProxyPass http://127.0.0.1:8001/.well-known/host-meta
</Location>

(I moved the “ProxyPreserveHost On” line into each Location, and removed it from the top of the file.)

  1. Run sudo systemctl reload apache2.

I was able to confirm that this gets Syncthing working again. (I wasn’t able to reproduce the issue with Transmission.)

If this works for you, I can also make the change in the snac2 package.

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