Hi
I urgently need help with my DynDNS account. For more than 2 weeks my server has not been accessible externally via the DNS entry. On the homepage, however, I can see that the IPs are correctly updated. I have already contacted support twice, but have not received an answer
According to the homepage, my delegation is incorrect. "No correct servers found"

My nameservers are these, which are identical to the ones suggested in the help.
YOUR ACCOUNT NAMESERVERS
ns1156.dns.dyn.com 208.76.58.156
ns2147.dns.dyn.com 208.76.59.147
ns3194.dns.dyn.com 208.76.60.194
ns4175.dns.dyn.com 208.76.61.175
Does anyone know the problem and has a solution?
If I can't solve this, my only remaining option is to cancel the contract and switch providers
any help would be appreciated