The error message says it all: your connection timed out. This means your request did not get a response within some (default) timeframe. The reasons that no response was received is likely to be one of:
- a) The IP/domain or port is incorrect
- b) The IP/domain or port (i.e service) is down
- c) The IP/domain is taking longer than your default timeout to respond
- d) You have a firewall that is blocking requests or responses on whatever port you are using
- e) You have a firewall that is blocking requests to that particular host
- f) Your internet access is down
Note that firewalls and port or IP blocking may be in place by your ISP
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