Routing to currently defunct Berlin tunnel server?

[xbill]

Hi,
I am trying to reach a server normally located behind the Berlin tserv.
Currently it looks like there are reachability/routing problems when I try to ping or traceroute to his server. My provider connects to he.net in Hamburg and from there I am routed to Stockholm (and I can't connect to his Server):

traceroute to 2001:470:6d:c3::139 (2001:470:6d:c3::139), 30 hops max, 80 byte packets
1  fritz.box (2001:16b8:6469:3b00:3631:c4ff:fef3:cd70)  0.834 ms  1.043 ms  1.319 ms
2  2001:1438::62:214:63:97 (2001:1438::62:214:63:97)  8.239 ms  8.318 ms  8.379 ms
3  2001:1438:0:1::7:281 (2001:1438:0:1::7:281)  6.927 ms  6.970 ms  7.046 ms
4  2001:1438:0:1::7:2402 (2001:1438:0:1::7:2402)  7.175 ms  7.239 ms  7.949 ms
5  10ge15-8.core1.ham1.he.net (2001:7f8:3d::1b1b:0:1)  7.085 ms  7.982 ms  8.045 ms
6  10ge1-7.core1.cph1.he.net (2001:470:0:30e::1)  13.049 ms  11.257 ms  11.223 ms
7  10ge1-1.core1.sto1.he.net (2001:470:0:2ad::1)  18.865 ms  19.030 ms  19.021 ms
8  tserv1.sto1.he.net (2001:470:0:11e::2)  25.562 ms  31.469 ms  35.872 ms
9  tserv1.sto1.he.net (2001:470:0:11e::2)  40.935 ms !H  45.488 ms !H  50.627 ms !H


From an other provider I can reach his Server, but the traceroute goes via the Pargue tserv?
Are there any routing problems inside the HE core network?

Even the Looking Glas shows different routings from random points in Europe (see Attachment)

Best regards,
Gunnar