sdwdate is an unsuitable connectivity troubleshooting tool. Reference:
Troubleshooting - Whonix chapter Unsuitable Connectivity Troubleshooting Tools in Whonix wiki
sdwdate uses onions. And onions are difficult to reach due to the DDoS attack which is being run against the Tor network for a long time already. References:
So likely not an sdwdate issue but rather Tor onion connectivity issue?
Can you reproduce Tor onion connectivity issues in one specific location but not in another?
Tor Generic Bug Reproduction might be required.
related: