Several days ago tailscale on my rasberry pi 4 stopped working, I thought it is another wifi issue and rebooted it but after looking at logs I realized wifi isnt issue but in tailscale connectivity:
sudo systemctl status tailscaled.service
tailscaled[154215]: control: LoginInteractive -> regen=true
tailscaled[154215]: control: doLogin(regen=true, hasUrl=false)
tailscaled[154215]: Received error: fetch control key: Get "https://controlplane.tailscale.com/key?v=57": context deadline exceeded
tailscaled[154215]: logtail: upload: log upload of 23460 bytes compressed failed: Post "https://log.tailscale.io/c/tailnode.log.tailscale.io/<>": net/http: TLS handshake timeout
tailscaled[154215]: logtail: [v1] backoff: 27325 msec
tailscale debug ts2021
02:19:14.305767 Fetching keys from https://controlplane.tailscale.com/key?v=57 ...
02:19:24.410086 Do: Get "https://controlplane.tailscale.com/key?v=57": net/http: TLS handshake timeout
Get "https://controlplane.tailscale.com/key?v=57": net/http: TLS handshake timeout
but curl can GET page without any issue
curl -v https://controlplane.tailscale.com/key?v=57
* Trying 18.156.90.224:443...
* Connected to controlplane.tailscale.com (18.156.90.224) port 443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* successfully set certificate verify locations:
* CAfile: /etc/ssl/certs/ca-certificates.crt
* CApath: /etc/ssl/certs
* TLSv1.3 (OUT), TLS handshake, Client hello (1):
* TLSv1.3 (IN), TLS handshake, Server hello (2):
* TLSv1.3 (IN), TLS handshake, Encrypted Extensions (8):
* TLSv1.3 (IN), TLS handshake, Certificate (11):
* TLSv1.3 (IN), TLS handshake, CERT verify (15):
* TLSv1.3 (IN), TLS handshake, Finished (20):
* TLSv1.3 (OUT), TLS change cipher, Change cipher spec (1):
* TLSv1.3 (OUT), TLS handshake, Finished (20):
i reinstalled tailscaled and deleted status file and the problem still persist.
