Your network log confirms that you're having connection problems, but the other data from the hub doesn't show anything out of the ordinary - downstream power levels, SNR and error levels don't point to anything obvious (although error levels look like a recent restart - keep an eye on how fast they rise). Upstream power levels and modulation are all fine, but given the recent restart, keep an eye on those too - you should always have 4 channels, all operating at 64 QAM. If that modulation drops back to 32 or 16 QAM on any or all channels, that could explain the problem because it'll cause the hub to lose stable connection with the kit in the street cabinet.
I'd wait for the forum staff to advise, as this may be an area problem rather than your connection.
Looking in the local area, we don't currently have any open outages that may be currently effecting you at all.
Can you please run a speed test with an Ethernet connection and with the hub in modem mode to see if we can get the 350mb speed. If you're unable to achieve this speed, it may be an issue outside of the property which would likely require a engineers appointment