Too many parallel guest downloads
/limit meta for guests: try again after about 5 seconds, or sign in for more slots. Same anon simultaneous-download gate as the guest API wait message.
Why this happens
Anonymous HTML clients redirected when ul2_sim_dl_anon leases are full. Sign-in / register CTAs may appear so they can use registered/Premium slot counts.
Diagnose and fix
1. Wait and retry, or sign in.
2. Admin: raise anon simultaneous downloads if guests should pull more in parallel.
3. Keep Registration / Login available if the CTA is important.
4. Members see the “for your plan” /limit description instead.