So, I of course rebooted everything i could, the box hosting my DNS/PiHole, VPN, docker box, etc. However, was remote and couldn’t reboot my modem.
I lowered my MTU on my VPN client config after rebooting my modem, and it’s working.
I don’t fully understand why it worked, but it did.
Maybe something on my ISPs end that wasn’t functioning.
I turned on query logging for my PiHole. I chose a random site I don’t typically browse, and confirmed I saw it logged in my PiHole. Though, I am thinking it’s likely DNS that’s causing issues.
I even tried turning off split tunneling, and it does the same thing.
I checked automatic DNS setting on my phone.
I don’t know if it will make a difference but the DNS records for my local services are CNAME records, so I am going to change it to an A/AAAA record on PiHole.
I have these set in PiHole and not my Unbound.
DNS leak test comes back the same mobile data with VPN as it does WiFi with VPN pointing back to DNS reflecting my upstream DNS, Quad9.
Wish I knew how to test/troubleshoot this.
That’s what I was thinking. Thank you
Absolutely, I can connect to the services via IP:Port
I have DNS handled by my PiHole (using unbound as-can upstream DNS)
On my PiHole, I have an A record for the docker box, and then CNAME records pointing to the A name record.
It makes little sense why it works on an offsite WiFi, but not mobile data.
Thank you for the info, I may try that out of curiosity