Bravia XBR-55X800E Network Wired Connection Slow and Wifi won't connect after Oreo 8.0 Update

[rcjones]

I checked the network settings, disabled WIFI, using only wired connection.  I noticed after update, all my Static IP settings were incorrect.  I fixed that, Network Status shows connections are all OK.   When I tried YouTube App, it's constantly buffering ever 30 seconds or so.  Sometimes image freezes, but audio continues. I removed the YouTube app, and then reinstalled it.  Same issues occur.  I notice event he resolution of the videos keeps dropping to 240p, if I select 1080p, it black screens the app.  I installed the WebTV browser and ran the "SpeedTest" site, the TV can only get 1MB...  I had no issue before the update.  I have 30MB connection. I test laptop and PCs, the wifi and wired connections are fine, avg 30MB download.   I tried powering off TV holding down power for 5 seconds, it forced a reboot.  No luck.   YouTube App on the TV is pretty much useless now.  You can't watch more than 30 seconds without it buffering for 30 seconds.

For giggles, I tried using WIFI... that was worse.. it saw my two networks, but couldn't connect to either.. said out of range.. umm.. is 8ft out of range?   I can sit in my car in the parking lot and use my wifi. 

I was able to cast from my Android phone, it worked fine. Never buffered once.  The phone was using my networks WIFI, which has both 2.4 and 5 GHz. My phone uses 5Ghz.  

I tried casting from my laptop, TV refused, it hung on YouTube connecting screen. 

Any idea what I can try next?  Is there any reset for the network card?

my internal network uses 192.168.0.1 for gateway, I tried DNS's as my router 192.168.0.1, and then as the google one's 8.8.8.8 and 8.8.4.4 - they seem to work.  I can see my TV connecting to my router.  

[rcjones]

After doing a factory reset, that seemed to fix some of it.  But the speed of the wired network was still bad.

I unplugged the network wire, and made it forget my wireless networks.  I tried it again and this time it connected to WIFI 5Ghz.  That's when I found the message to remove the wire connection to use wireless.  

I did the speedtest, and it was 30MB - no more issue with YouTube.  Will have to see what happened to the wired connection. 

[bramahbull2]

I also have very poor ethernet connection on my Bravia XBR65Z9D.

I have confirmed that the the wired connection will transfer at close to 1GB download and 45MB upload without issue. However the TV will constantly disconnect indicating lost connection. Yes I have replaced the ethernet cable and verified that the port is fine and the results are the same.

Unplugging the cable and plugging it back in or resetting the TV will restore the connection for a brief period of time. A speed test on the TV will never exceed 89MB per second using the ethernet port. That seems to be the fastest speed the port will handle. This was a very expensive TV and this problem has affected many customers from what I have read. I have been a SONY customer for a lifetime but that will change unless I see a fix soon. I say soon because I'm in the market for a bigger TV and I won't take a chance with SONY because of this issue. This is a driver or firmware issue that needs to be addressed. For now the work around is a 5G WIFI connection. It is much faster. Over 200MBS and very reliable. I also have a few other intermittent connection issues with HDMI and my Pioneer receiver. Just more of the same unreliable communication. Yes I can live with it. I am more to accepting perfection is not at the top of consumer electronics like it used to be.