JAWS does not seem to be able to identify a data table - accessibility

Question

We have a data table in a page and we want screen reader to read that as table. NVDA reads it as a data table by default. But JAWS does not seem to be able to identify the table element and reads the text from left to right row by row without indicating it is a table. I tried adding role="grid" and it did not work. I am wondering if I miss something.
The browser is IE11 and JAWS is 17.0.2727
<table tabindex="0" role="grid">
<thead>
<tr>
<th>Date</th>
<th>Time</th>
<th aria-hidden="true"></th>
<th>Rate</th>
<th>Volume</th>
</tr>
</thead>
<tbody>
<tr>
<td>12/19/16</td>
<td>
<span>10:50:09</span> - <span>12/19/16</span> <span>11:05:09</span>
</td>
<td aria-hidden="true"></td>
<td>
<span>54</span><span>mL/hr</span>
</td>
<td>
<span>13.5</span><span>mL</span>
</td>
</tr>
<tr>
<td></td>
<td>
<span>11:05:09</span> - <span>12/19/16</span><span>11:20:09</span>
</td>
<td aria-hidden="true"></td>
<td>
<span>48</span><span>mL/hr</span>
</td>
<td>
<span>12</span><span>mL</span>
</td>
</tr>
</tbody>
</table>

Answer 1

for a datatable:
a caption
th row header and column header cell
Scope or header id attribute to associate cells with the headers in tables
Example:
<table>
<caption>City proper and Metropole area of largest cities in the world</caption>
<tr>
<td> </td>
<th scope="col">Shanghai</th>
<th scope="col">Karachi</th>
<th scope="col">Beijing</th>
</tr>
<tr>
<th scope="row">City proper</th>
<td>24,256,800</td>
<td>23,500,000</td>
<td>21,516,000</td>
</tr>
<tr>
<th scope="row">Metropole area</th>
<td>34,750,000</td>
<td>25,100,000</td>
<td>24,900,000</td>
</tr>
</table>

Answer 2

I have the same issue, that JAWS 2019 is not allowing Cursor navigation in the table cells. Especially cursor up/down in the same column is one of the accessibilty test cases that fails here.
I assume this has something to do with the <thead> and <tbody> elements not expected by the commonly used JAWS table navigation. Only option available is to use TAB/Shift+TAB to step through each cell in a row until the next/previous row can be accessed.