Thanks for the info, George. I guess since some USB controllers work better or worse with UHD / USRP, these USB adapters will also be better or worse. I bought my MBP touch 2017 USB-C to USB-3 adapters off of eBay -- the least expensive they provided that didn't ship from China (overseas etc) -- and they've worked flawlessly for me. Glad you were able to track the issue down to that adapter! - MLD On Tue, Aug 28, 2018, at 1:13 PM, George Rykowski wrote: > Michael, thank you for the response. I’ve discovered the issue and it > is the USB-C adapter I was using for the USB connection to the USRP > B210. The MacBook Pro 2018 provides 4 USB-C ports, so adapters are > generally required. I was using the following:>
> https://www.amazon.com/gp/product/B07BGTV9J4/ref=ask_ql_qh_dp_hza > > Even though it uses 2 USB-C ports to provide power and connectivity, > for some reason the adapter would occasionally force an I/O error on > the USB interface. I am now using the following Apple adapter, which > has worked flawlessly:> > https://www.apple.com/shop/product/MJ1K2AM/A/usb-c-digital-av-multiport-adapter
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