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| 2019-05-01 06:12:36 +0000 | marked best answer | File upload stalling, many "bad" TCP packages Hi, I just bought a new LTE / 4g Router for home use (Asus 4G AC53U) and while normal web browsing seems to work just fine, large file uploads do not complete / stall after a very short period of time. Also, when doing a speed test (speedtest.net) I get around 80Mbps download (which seems to be OK) but less than 0.2Mbps upload (the upload seems to stall right after starting the transfer). I already tried disabling the router's (and client OS's) firewall, and did a factory reset of the router. Firmware appears to be the latest version (3.0.0.4.382_50399-gcd97187). My Wireshark dump shows lots of "bad" TCP packets, such as Dup ACK followed by Out-Of-Order and TCP Retransmission, just before the client gives up (timeout?). It happens on both Ethernet and WiFi connections, with all my computers (Mac, Ubuntu). When using my Android mobile phone though, it works. What could be the cause of this? Wireshark dump: https://1fichier.com/?rs7wfjaqy6gecup... For comparison, this is a wireshark dump of a "good" speedtest (on the same computer, tethering to my mobile phone): https://1fichier.com/?ydj16ver8jdkii3... |
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| 2019-05-01 06:11:40 +0000 | answered a question | File upload stalling, many "bad" TCP packages You are right, it does appear to be an MTU problem. Playing around with different values in Ubuntu I managed to get stab |
| 2019-04-29 06:53:51 +0000 | asked a question | File upload stalling, many "bad" TCP packages File upload stalling, many "bad" TCP packages Hi, I just bought a new LTE / 4g Router for home use (Asus 4G AC53U) and w |