Adds iperf timeout for bandwith measurements.

measurement_main.py

@@ -805,6 +805,8 @@ class Client:
                 is_measurement_done = False
                 iperf_return = 0
                 while not is_measurement_done or iperf_return != 0:
+                    if iperf_return != 0:
+                        reconnect_modem()
                     try:
                         try:
                             iperf_return = subprocess.call(iperf_command, timeout=float(time) + TIMEOUT_OFFSET)
@@ -871,6 +873,8 @@ class Client:
                 is_measurement_done = False
                 iperf_return = 0
                 while not is_measurement_done or iperf_return != 0:
+                    if iperf_return != 0:
+                        reconnect_modem()
                     try:
                         try:
                             iperf_return = subprocess.call(iperf_command, timeout=float(time) + TIMEOUT_OFFSET)