Have you changed provider? That could be the (temporary) reason for the speed drop. But don't keep re-sync'ing in the hope of improvement. That would cause a longer wait for better to come back.
Zarjaz was asking what modem you used with the HH4. That could be relevant.
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Sovereignty Means
Sovereignty
My broadband basic info/help site -
www.robertos.me.uk. Domains, sites and mail hosting -
Tsohost &
Ionos.
Connections: OnePlus 8 Pro max 165Mbps down, 24Mbps up on Three, and B311 4G, tbb tests normally 35-45Mpbs down, 65Mbps off-peak, 9-24 up.
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Experience shows us that love does not consist in gazing at each other but in looking together in the same direction.
Antoine de Saint-Exupéry.