Permalinks with sub-directory in IIS

I have an asp site – https://abc213 with wordpress installed as a subdirectory – https://abc123/blog. The main blog page displays fine but when trying to go to any links I get:

HTTP Error 404.0 – Not Found
The resource you are looking for has been removed, had its name changed, or is temporarily unavailable.

In the root directory’s web.config i have the following:

<rewrite>
	<rules>
	<clear />
		<rule name="wordpress" patternSyntax="Wildcard">
			<match url="*" />
			<conditions>
 	                       <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
 	                       <add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
			</conditions>
				<action type="Rewrite" url="index.php" />
		</rule>
	</rules>
</rewrite>

in the sub-directory i have the following:

<rewrite>
      	<rules>
 	<clear />
		<rule name="blog" stopProcessing="true">
			<match url=".*" />
			<conditions>
      		                  <add input="{HTTP_HOST}" pattern="^abc123" />
      		                  <add input="{PATH_INFO}" pattern="^/" negate="true" />
			</conditions>
				<action type="Rewrite" url="\blog\{R:0}" />
		</rule>

		<rule name="blog-wp" patternSyntax="Wildcard">
			<match url=".*" />
			<conditions logicalGrouping="MatchAll">
				<add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
				<add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
			</conditions>
			<action type="Rewrite" url="index.php" />
		</rule>
	</rules>
    </rewrite>