Open VPN on my Pixel 7 pro works as intended on family and friends WIFI networks but does not work on T-Mobile network. I have checked the logs and no traffic is being blocked. I also checked the state table and it connects to Quad 9 DNS, but the phone indicates it cannot connect to Quad9 private DNS. The same sim card and configuration work on my old Samsung Galaxy note 8 on the T-Mobile network, but not the Pixel 7 pro . Am I missing something ? Has anyone encountered this problem?
I have a Google Pixel 6 using Google FI and I think they are still using T-Mobile among their carriers and I have never had an issue. The blocking might be at your ISP.
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