Hi,
You can probably work around the problem by passing “usePreCachedTilesIfAvailable: false” to the ArcGisMapServerImageryProvider constructor, but that’s not an ideal solution. I don’t know what a CAC card is, but if you can share the result of this URL I may be able to make a better guess about what’s going wrong:
You can email it to me if you don’t want to post it here.
Thanks,
Kevin