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Local server won't load

av8b.heed
av8b.heed
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I run a Synology DSM server on my local network. The website page to load locally inside my LAN is along the lines of 127.0.0.1:1001.

MacOSX 15.0.1 FireFox(FF) 132.0 (aarch64)

Previously accessing the DSM via the local IP address worked fine with no problems. Now, following one of the last couple of FF updates, I get an "unable to connect" message.

I also have a domain that routes to my local server and I can still access the DSM via the internet http address through FF. So I know that DSM is running fine and I have verified the settings within DSM.

I can load the DSM via the local IP in both Safari and Chrome. Only FF says it's unable to connect. So that shows that my DSM settings are fine and the page is available and loads in Safari and Chrome via the local IP.

I searched the forum and found similar postings, but not quite the same issue as mine. I deleted the cache & cookies/site data. I ensured the Proxy mode in FF is set to "No Proxy". I do not have any extensions running or themes.

I am at a complete loss at what setting in FF I need to change to restore this functionality.

Thanks, Matt

I run a Synology DSM server on my local network. The website page to load locally inside my LAN is along the lines of 127.0.0.1:1001. MacOSX 15.0.1 FireFox(FF) 132.0 (aarch64) Previously accessing the DSM via the local IP address worked fine with no problems. Now, following one of the last couple of FF updates, I get an "unable to connect" message. I also have a domain that routes to my local server and I can still access the DSM via the internet http address through FF. So I know that DSM is running fine and I have verified the settings within DSM. I can load the DSM via the local IP in both Safari and Chrome. Only FF says it's unable to connect. So that shows that my DSM settings are fine and the page is available and loads in Safari and Chrome via the local IP. I searched the forum and found similar postings, but not quite the same issue as mine. I deleted the cache & cookies/site data. I ensured the Proxy mode in FF is set to "No Proxy". I do not have any extensions running or themes. I am at a complete loss at what setting in FF I need to change to restore this functionality. Thanks, Matt

Chosen solution

After posting this, I figured out the issue. It's a MacOS configuration issue.

I forgot that MacOS (and iOS) will block application access to local networks, etc.

It took me some time to find the setting, but somehow the FF setting had been turned to off. Perhaps during one of the FF updates or when I updated my MacOS a few weeks ago. Guessing I clicked through some setting and missed it.

To get to that setting, navigate to: Settings > Privacy & Security > Local Network

Once I turned the slide to on, I could access the DSM server via the local IP address again.

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av8b.heed
av8b.heed Question owner
more options

Chosen Solution

After posting this, I figured out the issue. It's a MacOS configuration issue.

I forgot that MacOS (and iOS) will block application access to local networks, etc.

It took me some time to find the setting, but somehow the FF setting had been turned to off. Perhaps during one of the FF updates or when I updated my MacOS a few weeks ago. Guessing I clicked through some setting and missed it.

To get to that setting, navigate to: Settings > Privacy & Security > Local Network

Once I turned the slide to on, I could access the DSM server via the local IP address again.

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