Can you PM me the ip attributed to the samsung tab when you see a 403, + any other info (f.ex. using a vpn?). If you retry a little later, or next day etc, still 403 ?
What browser on the samsung ? As suggested, clear cache.
Is the samsung and the mentionned chrome both on the tablet, or on 2 different machines ?
If on 2 different machines, on the same network\wifi ?
Can you test using a phone ?
Yes, sometimes needs lots of digging to find things :O)
Have tested with my samsung mobiles, no problems for me.
Anyone else seeing 403 forbidden, please post here asap.