@Kevin_Z 

For me, the auto reboot did not help.  I scheduled a reboot at 3:00am every day but the VR2100 would still reboot/crash later in the day.  If anything, it made it worse.  Now that I have different branded DSL router installed, I haven't experienced a single crash/reboot since so there is something wrong with the VR2100, possibly in the area of the MediaTek chipset.

@Kevin_Z 

Before reporting this problem here I tried autoreboot first. I had a similar idea. But i must to say no help it too. :(

(but im not sure i had 1x per day or only 1x per week)

EDIT: for me uptime 2 days 0 hours 15 minutes still without restart. We will see today (mysteriously CRC errors starts grew up, your engineer from ticket informed by email).

With the VR2100, it is like history is repeating itself when reading up on another branded modem router.  There are several forums covering the infamous ASUS DSL-AC68U modem router and this also has a MediaTek modem chipset.  ASUS switched to the MediaTek modem chipset for this model but switched back to a Broadcom modem chipset for the later DSL-AC88U model.  I wonder why that is!  The ASUS DSL-AC68U model also experienced connection issues like we have been experiencing with the VR2100.  And, according to the posts on the forums, the connection issues was never fully resolved.  TP-Link, what were you thinking when you switched from the Lantiq (Intel) modem chipsets to MediaTek modem chipsets considering that a major competitor had issues with them?

I must join to others. Now crashed. Last beta firmware no help. :( 

Last what can i see (i forwarded it to engineer to email):

@Kevin_Z 

I asked in my earlier post not to embarrass yourselves by making out it,s an ISP fault and a few posts later there you go blaming everyone else except TP-Link.

It,s clear to everyone here that the MediaTek chipset is to blame for these problems and the TP-Link engineers clearly cannot fix the issues that EVERYONE is having so the only option left to TP-Link is to recall the router and refund users.

@plasmahal I have said numerous times these routers should be recalled, not fit for purpose 

They just contacted with me to tell that they're sending VR400 V3 for test and W9960 or W9970 temporary until they fix this issue. I'm happy to see that at least they're working to fix the problem. Thanks for that. 

@naz_eg Been out a year, good luck my patience has worn out on way back to Amazon now 

Well mine looked so much better back in its box with a returns label on it. If anybody knows of another brand to try please let me know. 

@PaulPP Indeed.  Mine looked better for being on it's way back to Amazon!!  My second hand FRITZ!Box 7530 has been running for 6 days and no reboots or crashes which is great!  No Wi-Fi issues either.  It's rock solid :-)   So are you just going back to your original modem router or are you going to get a different one?