You're doing something unusual with the mentions of Kaspersky and Windows Defender and routing at a minimum, so I'm not quite sure what your LAN looks like....the mention of port 23 in your logs looks unexpected too.
Regardless, if you didn't change anything and it stopped working, it's likely something on their end wouldn't you think ? Given "name resolution" errors, I'd start with checking your DNS setup via the usual utilities. One of them is likely on your pi already. The examples below explicitly hit the google DNS servers to take anything you might be doing locally re: DNS out of the question for debugging.... pi@pi4:~ $ host cwop.aprs.net 8.8.8.8 Using domain server: Name: 8.8.8.8 Address: 8.8.8.8#53 Aliases: cwop.aprs.net has address 44.155.254.4 cwop.aprs.net has address 44.235.86.44 cwop.aprs.net has address 54.200.219.161 cwop.aprs.net has address 85.188.1.27 cwop.aprs.net has address 129.15.108.116 cwop.aprs.net has address 143.244.144.248 or.... pi@pi4:~ $ nslookup cwop.aprs.net 8.8.8.8 Server: 8.8.8.8 Address: 8.8.8.8#53 Non-authoritative answer: Name: cwop.aprs.net Address: 129.15.108.116 Name: cwop.aprs.net Address: 44.235.86.44 Name: cwop.aprs.net Address: 143.244.144.248 Name: cwop.aprs.net Address: 85.188.1.27 Name: cwop.aprs.net Address: 54.200.219.161 Name: cwop.aprs.net Address: 44.155.254.4 or..... pi@pi4:~ $ dig @8.8.8.8 cwop.aprs.net ; <<>> DiG 9.16.33-Raspbian <<>> @8.8.8.8 cwop.aprs.net ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 39565 ;; flags: qr rd ra; QUERY: 1, ANSWER: 6, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 512 ;; QUESTION SECTION: ;cwop.aprs.net. IN A ;; ANSWER SECTION: cwop.aprs.net. 15 IN A 44.235.86.44 cwop.aprs.net. 15 IN A 143.244.144.248 cwop.aprs.net. 15 IN A 44.155.254.4 cwop.aprs.net. 15 IN A 129.15.108.116 cwop.aprs.net. 15 IN A 54.200.219.161 cwop.aprs.net. 15 IN A 85.188.1.27 ;; Query time: 49 msec ;; SERVER: 8.8.8.8#53(8.8.8.8) ;; WHEN: Wed Jan 11 19:57:52 PST 2023 ;; MSG SIZE rcvd: 138 -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/2581f476-b8f9-429d-96cf-c1a2c182da96n%40googlegroups.com.
