Steps to reproduce:
1. Download the attached project**
2. Open the Windows build located in "case_849219-ReconnectTest\ReconnectTest\Builds"
3. Open the WebGL build located in "case_849219-ReconnectTest\ReconnectTest\Builds\WebGL" on a different machine
4. In the windows instance, press "Start Server"
5. In the WebGL instance, enter the Host's IP address in the text box
6. Click Connect
7. On the machine running the WebGL instance, open the "Network and Sharing Center"
8. Disable the internet adapter
9. Enable the internet adapter
10. Repeat steps 8-9

Result: Windows client crashes

**Optional steps:
1. Open the project
2. Build for Standalone
3. Build for WebGL

Reproduced on 5.2.3f1. 5.3.6p8, 5.4.2p3, 5.5.0b11

Notes:
1. Cannot connect from a windows build to windows, windows to webgl or webgl to windows
2. The windows instance can be run in the editor.

========== OUTPUTING STACK TRACE ==================

0x00000001416AFC7E (Unity) `anonymous namespace'::callback_unity_game
0x00000001417AE3DE (Unity) user_callback_handle_rxflow
0x00000001417AEF3F (Unity) lws_handle_POLLOUT_event
0x00000001417AF1FE (Unity) libwebsocket_service_fd
0x00000001417AF6B2 (Unity) lws_plat_service
0x0000000140CD0AFF (Unity) UNET::Reactor::Run
0x0000000140CD0E87 (Unity) UNET::Reactor::ThreadFunc
0x0000000140F8083C (Unity) Thread::RunThreadWrapper
0x00007FFACF0D8364 (KERNEL32) BaseThreadInitThunk
0x00007FFACF8F5E91 (ntdll) RtlUserThreadStart

========== END OF STACKTRACE ===========