diff --git a/modules/rostests/winetests/mpr/mpr.c b/modules/rostests/winetests/mpr/mpr.c
index 19097b8a286..330e66bf89f 100644
--- a/modules/rostests/winetests/mpr/mpr.c
+++ b/modules/rostests/winetests/mpr/mpr.c
@@ -55,7 +55,7 @@ static void test_WNetGetUniversalName(void)
         ret = WNetGetUniversalNameA(driveA, UNIVERSAL_NAME_INFO_LEVEL,
                 buffer, &fail_size);
         if(drive_type == DRIVE_REMOTE)
-            todo_wine ok(ret == WN_BAD_VALUE, "WNetGetUniversalNameA failed: %08x\n", ret);
+            todo_wine ok(ret == WN_BAD_VALUE || ret == WN_MORE_DATA, "WNetGetUniversalNameA failed: %08x\n", ret);
         else
             ok(ret == WN_NOT_CONNECTED || ret == WN_NO_NET_OR_BAD_PATH,
                 "(%s) WNetGetUniversalNameW gave wrong error: %u\n", driveA, ret);
@@ -101,23 +101,25 @@ static void test_WNetGetRemoteName(void)
         info_size = sizeof(buffer);
         ret = WNetGetUniversalNameA(driveA, REMOTE_NAME_INFO_LEVEL,
                 buffer, &info_size);
+        todo_wine{
         if(drive_type == DRIVE_REMOTE)
-            todo_wine
             ok(ret == WN_NO_ERROR, "WNetGetUniversalNameA failed: %08x\n", ret);
         else
             ok(ret == WN_NOT_CONNECTED || ret == WN_NO_NET_OR_BAD_PATH,
                 "(%s) WNetGetUniversalNameA gave wrong error: %u\n", driveA, ret);
+        }
         ok(info_size == sizeof(buffer), "Got wrong size: %u\n", info_size);
 
         fail_size = 0;
         ret = WNetGetUniversalNameA(driveA, REMOTE_NAME_INFO_LEVEL,
                 buffer, &fail_size);
+        todo_wine{
         if(drive_type == DRIVE_REMOTE)
-            todo_wine
-            ok(ret == WN_BAD_VALUE, "WNetGetUniversalNameA failed: %08x\n", ret);
+            ok(ret == WN_BAD_VALUE || ret == WN_MORE_DATA, "WNetGetUniversalNameA failed: %08x\n", ret);
         else
             ok(ret == WN_NOT_CONNECTED || ret == WN_NO_NET_OR_BAD_PATH,
                 "(%s) WNetGetUniversalNameA gave wrong error: %u\n", driveA, ret);
+        }
         ret = WNetGetUniversalNameA(driveA, REMOTE_NAME_INFO_LEVEL,
                 buffer, NULL);
         todo_wine ok(ret == WN_BAD_POINTER, "WNetGetUniversalNameA failed: %08x\n", ret);
@@ -125,12 +127,13 @@ static void test_WNetGetRemoteName(void)
         ret = WNetGetUniversalNameA(driveA, REMOTE_NAME_INFO_LEVEL,
                 NULL, &info_size);
 
+        todo_wine {
         if(drive_type == DRIVE_REMOTE)
-            todo_wine
-            ok(ret == WN_BAD_POINTER, "WNetGetUniversalNameA failed: %08x\n", ret);
+            ok(ret == WN_BAD_POINTER || ret == WN_BAD_VALUE, "WNetGetUniversalNameA failed: %08x\n", ret);
         else
             ok(ret == WN_NOT_CONNECTED || ret == WN_BAD_VALUE,
                 "(%s) WNetGetUniversalNameA gave wrong error: %u\n", driveA, ret);
+        }
 
         fail_size = sizeof(driveA) / sizeof(char) - 1;
         ret = WNetGetUniversalNameA(driveA, REMOTE_NAME_INFO_LEVEL,
@@ -281,8 +284,9 @@ static void test_WNetUseConnection(void)
         strcpy(netRes->lpRemoteName, "\\\\127.0.0.1\\c$");
         bufSize = 0;
         ret = pWNetUseConnectionA(NULL, netRes, NULL, NULL, 0, NULL, &bufSize, &outRes);
-        if (ret == ERROR_ALREADY_ASSIGNED) continue;
+        if (ret != ERROR_ALREADY_ASSIGNED) break;
     }
+    if (ret == ERROR_ALREADY_ASSIGNED) goto end;    /* no drives available */
     todo_wine ok(ret == WN_SUCCESS, "Unexpected return: %u\n", ret);
     ok(bufSize == 0, "Unexpected buffer size: %u\n", bufSize);
     if (ret == WN_SUCCESS) WNetCancelConnectionA(drive, TRUE);
@@ -307,6 +311,7 @@ static void test_WNetUseConnection(void)
     ok(bufSize == 4, "Unexpected buffer size: %u\n", bufSize);
     if (ret == WN_SUCCESS) WNetCancelConnectionA(drive, TRUE);
 
+end:
     HeapFree(GetProcessHeap(), 0, netRes);
 }