Are my captured TCP, DNS packages flagged as SYN, ACK (etc) suspicious?

[watreen]

Iam really concered about this traffic captured by Wireshark. Since today
I get a lot of TCP packages although no program is interacting with internet.
There are ARP's, SYNs and my computer even sends back a lot of ACK packages. Few Http and DNS were captured aswell.

Source IP's coming among others from
(1) USA Redmon 207.46.198.220 (Microsoft) *maybe abused
(2) UK 94.236.15.26 (rackspace.com)
(3) USA New Orleans 66.157.50.237 (BellSouth.net Inc.)

I attached one jpg for a quick overview and one zip file including the complete
capture.

I've to mention that iam not a network adminstrator. This is my private family
computer located behind an ethernet router.

Hopefully there is a harmless reason for this suspicious capturing.

Kind regards,
watreen

[watreen]

I think I found out what's causing this traffic. I found some link refering to a weather radar website. That lead me to my gadgets on Windows. After closing them I didnt found any traffic going on between my computer and other network adresses. Just to be on the safe side I will do tomorrow again some monitoring.

Bye -
Watreen

[sicarie]

Good catch, and thanks for posting the resolution!