Here are results from a short sample of about 10 pings to each station from Boulder, with a default ping packet of 56 bytes:

station

ping times (ms)

playa1, isfs1.dyndns.org

390-1160

abc2, isfs2.dyndns.org

200-480

hiland3,isfs3.dyndns.org

180-280

wvally4, isfs4.dyndns.org

150-300

eslope5,isfs5.dyndns.org

150-250

wslope6, isfs6.dyndns.org

180-200

river7, isfs7.dyndns.org

150-210

.
Station 1 is the obvious outlier, and it shows the lowest signal level as shown inhttps://wiki.ucar.edu/x/A4giB

Note that starting at 00:00 UTC (17:00 MST) every day, the previous days files are downloaded from each station. This process takes about 1/2 on each station (longer on isfs1). During the downloads the ping times will be longer.