Just so I understand, was that using the B10A as a router though ? I’m wondering if we’re at cross purposes - I’m talking about B10-the-mere-modem and you could be talking about the wireless-modem-router B10?
If it was causing packet loss, then should bin it because it’s broken. Mine doesn’t suffer from any packet loss, but then mine is just a modem and so doesn’t suffer from any of the many bugs that are known -see those listed on AA’s support website.
Anyway, if you’re feeling like an experiment, you could try a B10A configured as a modem-only with your openwrt router. the B10A most certainly does not cause packet loss when used only as a modem so you might want to take a chance if you’ve nothing else to do. This reliability is proven because I’m an Andrews and Arnold user and they have continuous quality monitoring (CQM)servers constantly PPP LCP pinging the links every so many seconds and checking for packet loss. I can see from this monitoring system when there is packet loss due to data corruption if the dsl link goes bad because of exceptionally low SNR.