I was messing about with AdGuard Home for a while and I think something may have been incorrectly changed, that I've been unable to figure out.
My NAS was always on external access only via TailScale (v1.62) until last week when I upgraded to v1.64.2 (which is supposed to have a Synology fix for being unable to reauthenticate). At the same time, I also removed AdGuard Home and related settings changes, since this was breaking too many websites for me, and Duplicacy didn't want to work well with it.
Thinking back, this was when my issues started. Tailscale disconnected (and haven't been able to reconnect since), and I started digging into why that was, which eventually led me down a dark rabbit hole when I discovered the NAS was simply inaccessible via any method:
I may be missing something here - and I definitely have not written down all the things I've tried since I also reset and restarted router, checked firewall settings and made sure nothing is blocked etc. Port shouldn't matter since I'm still on local network and I've never had to mess with that before (I don't open ports on router unless absolutely required, which is almost never).
What's weird to me is that I can still access the NAS locally from my laptop, so that means it is communicating with router? So how is it unable to ping the router?
I've hit the limits of my know-how and whatever troubleshooting Google can provide. So I'm here asking for help! I'm also going to contact tech support later today, but thought I'd ask here to see if anyone has any pointers. What am I missing?
My NAS was always on external access only via TailScale (v1.62) until last week when I upgraded to v1.64.2 (which is supposed to have a Synology fix for being unable to reauthenticate). At the same time, I also removed AdGuard Home and related settings changes, since this was breaking too many websites for me, and Duplicacy didn't want to work well with it.
Thinking back, this was when my issues started. Tailscale disconnected (and haven't been able to reconnect since), and I started digging into why that was, which eventually led me down a dark rabbit hole when I discovered the NAS was simply inaccessible via any method:
- Tailscale - I first rolled back to 1.62.1 (previous working version) but that didn't work. Stuck at Reauthenticate screen. I also ssh-ed into NAS and tried to sudo tailscale up, but after entering my NAS password, it just blanks out. I've now completely uninstalled TailScale.
- Quick Connect - I had previously disabled this, but went in to enable and get the error " Domain name cant be resolved. Please change your DNS server address to 8.8.8.8 and try again". DNS on my router is automatic from my ISP (shifted back from AdGuard Home DNS when I removed AGH). NAS DNS was also set to automatic but I changed to manual (8.8.8.8 and 8.8.4.4) and restarted NAS - nothing. Set it back to automatic, went into network settings and checked to make sure ipv4 was auto-DHCP (it was), restarted NAS again and still - nothing.
- DDNS - This was also previously disabled, so I went in and tried to enable that, now get the error Synology login unable to authenticate and the test connection fails, with a popup asking me to contact Syno tech support. FYI: I'm able to login to my DSM account on the Synology website.
- Then I tried going into Regional Options and updating date/time with a sync to time.google, and that failed too
- SSH-ed into my NAS, sudo -i to root and tried to ping router on the local network 192.168.xx.xx and there was no response. At this point I figured the NAS is just not communicating with anything outside the local network. Like it's completely blocked off!
I may be missing something here - and I definitely have not written down all the things I've tried since I also reset and restarted router, checked firewall settings and made sure nothing is blocked etc. Port shouldn't matter since I'm still on local network and I've never had to mess with that before (I don't open ports on router unless absolutely required, which is almost never).
What's weird to me is that I can still access the NAS locally from my laptop, so that means it is communicating with router? So how is it unable to ping the router?
I've hit the limits of my know-how and whatever troubleshooting Google can provide. So I'm here asking for help! I'm also going to contact tech support later today, but thought I'd ask here to see if anyone has any pointers. What am I missing?