Download crawl or stall about caddy

[mohammed90]

It's possible that the ISP has changed something which affects you (the client) or Caddy (the server side). Please share the following:

• Enable logs (access logs by using the log directive, and debug logs by using the debug global option) and share the resulting logs while experiencing the issue

• Run Wireshark/tcpdump on the server and/or the client side and check the subject data stream/connection. Do you see any TCP Retransmission?

• If both server and client are in-premise, are the physical connections (cables) proper and not damaged?

For validation/testing purposes only, check the MTU on both networks. Like you, I once had an issue where the client struggled to view a page served by Caddy (only received HTTP headers, but nothing more -- stalls, as you'd say) despite working fine for a year or more before. The fix was to manually set the MTU on the server to match the client. Give it a shot, if you can, just to confirm.

[ertankucukoglu]

Turned out to be an IP ban from government. I am explained that it is earlier users might have been used the IP for fraud or something illegal. Otherwise, VPS company would have received a letter for explanation.
I am provided a new IP number and now everything is back to normal.
Sorry for the noise.