Internet speed issue cause by a Denial of Service Attack

Has anyone else looked at their router logs recently to find DoS attacks?

Here is just a 30 minute window that took Gigablast down to about 20mbps. Only way I got around it was to factory reset my router and reconfigure it because a reboot didn't do anything.

[DoS Attack: SYN/ACK Scan] from source: 89.187.177.185, port 8443, Saturday, July 18, 2020 15:05:44

[DoS Attack: SYN/ACK Scan] from source: 185.193.127.213, port 22, Saturday, July 18, 2020 14:14:58

 [DoS Attack: SYN/ACK Scan] from source: 51.79.142.79, port 50002, Saturday, July 18, 2020 14:04:10

[DoS Attack: SYN/ACK Scan] from source: 51.79.142.79, port 50002, Saturday, July 18, 2020 14:04:10

 [DoS Attack: SYN/ACK Scan] from source: 51.79.142.79, port 50002, Saturday, July 18, 2020 14:04:10

 [DoS Attack: SYN/ACK Scan] from source: 51.79.142.79, port 50002, Saturday, July 18, 2020 14:04:10

 [DoS Attack: SYN/ACK Scan] from source: 51.79.142.79, port 50002, Saturday, July 18, 2020 14:04:10

 [DoS Attack: SYN/ACK Scan] from source: 51.79.142.79, port 50002, Saturday, July 18, 2020 14:04:10

 [DoS Attack: RST Scan] from source: 83.169.5.177, port 3306, Saturday, July 18, 2020 13:57:30

[DoS Attack: SYN/ACK Scan] from source: 46.174.48.33, port 25568, Saturday, July 18, 2020 13:53:06

[DoS Attack: SYN/ACK Scan] from source: 51.79.142.79, port 50002, Saturday, July 18, 2020 13:45:20

[DoS Attack: SYN/ACK Scan] from source: 51.79.142.79, port 50002, Saturday, July 18, 2020 13:45:20

 [DoS Attack: SYN/ACK Scan] from source: 51.79.142.79, port 50002, Saturday, July 18, 2020 13:45:20

[DoS Attack: SYN/ACK Scan] from source: 51.79.142.79, port 50002, Saturday, July 18, 2020 13:45:20

 [DoS Attack: SYN/ACK Scan] from source: 51.79.142.79, port 50002, Saturday, July 18, 2020 13:45:20

 [DoS Attack: SYN/ACK Scan] from source: 51.79.142.79, port 50002, Saturday, July 18, 2020 13:45:20